As 1163 - Hollow Sections for Structural Steel

AS 1163—1991

Australian Standard® Structural steel hollow sections

This Australian Australian Standard Standard was prepared by Committee Committee BD/23, Structural Steel. Steel. It was appro approve ved d on behalf behalf of the Counci Councill of St anda andards rds Austral Australia ia on 30 Augus Augustt 1991 1991 and and published on 15 November 1991.

The following interests interests are represen represented ted on Committee Committee BD/23: BD/23: Australian Chamber of Manufacturers Australian Australian Institute Institute of Steel Construction Construction AUSTROADS Bureau Bureau of Steel Manufac Manufacturer turerss of Australia Australia Confederation of Australian Industry Institute of Steel Service Centres of Australia Master Builders Construction and Housing Association Australia Metal Metal Trades Industry Industry Association Association of Australia Railways Railways of Australia Committee Committee Steel Reinforcem Reinforcement ent Institute Institute of Australia University of Queensland Queensland University of Sydney

Review of A ustral ian Sta ndards. To keep abreast abreast of progress progress in industry, industry, Australian Australian Standards Standards are subject to periodic periodic review review and are kept kept up to date by the issue of amendmen amendments ts or new editions editions as necess necessar ary. y. It is important therefore therefore that Standards Standards users users ensure ensure that they are in possession possession of the latest edition, and any amendments amendments thereto. thereto. Full details of all Australian Australian Standards Standards and related publications will be found in t he Standards Standards Australia Catalogue of Publications; this information i s suppleme supplemented nted each month by the magazine magazine ‘ The Australian Australian Standard’, Standard’, which subscribing subscribing m embers embers receive, receive, and which gives details of new new publications, new editions and amendments, amendments, and of withdrawn Standards. Standards. Suggestions Suggestions for improvements improvements to Australian Australian Standards, Standards, addresse addressed d to the head off ice of Standards Standards Australia, Australia, are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be made without delay in order that the matter may be investigated and appropriate appropriate action taken.

This Standard was issued in draft form for comment as DR 90108.

AS 1163—1991

Australian Standard® Structural steel hollow sections

First published as AS A177—1969. Revised and redesignated AS 1163—1973. AS A177 withdrawn 1976. Second edition AS 1163—1981. Third edition 1991. Incorporating: Amdt 1—1992 Amdt 2—1996

PUBLISHED BY ST ANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) 1 THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 0 7262 7109 8

AS 1163—1991

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PREFACE This Standard was prepared by the Standards Australia Committee on Structural Steel to supersede AS 1163—1981. This edition incorporates the following changes: (a) The deletion of C200 and all H (hot-formed) grades. The inclusion of a new cold-formed grade C450 and grades with guaranteed impact performance at 0° C, namely C250L0, C350L0 and C450L0. In line with the above change, the tensile strengths of grades C250 and C350 are reduced to reflect the properties obtained on cold-formed sections. (b) A revised table on chemical analysis. (c) An amended table on minimum inside radius. (d) A revised table on tensile test r equirements. (e) The deletion of the previous Appendix B on rounding of numbers in lieu of reference to AS 2706.

CONTENTS Page

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SC OPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RE F ER E NC ED DOC UME NT S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DE FIN ITI ON S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DE SIG NAT IO N . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ST E EL MAK IN G P RO CES S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CH EMI CAL C OMPO S IT I ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DIMENSIONS, MASS AND GEOMETRICAL PROPERTIES . . . . . . . . . . . . . . . . . . . DI MEN S IO NA L TO LE R AN CES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MA SS T OL ER ANC E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FR E ED OM F R OM D EFE C TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RE MOV AL O F SU R FA CE D EFE C TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RE MOV AL OF UP S ET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ME CHA NIC AL T E ST I NG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PREPARATION OF TEST PIECES FOR MECHANICAL TESTING . . . . . . . . . . . . . . ME CHA NIC AL T E ST RE Q UI RE MEN T S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ME CHA NIC AL P R OP E RT IE S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RO UND ING O F NU MBE RS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MAR KI NG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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APPENDICES A B C D

PU R CH AS I NG GU IDE LI NES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD . . . . . . . DIMENSIONS AND PROPERTIES OF CROSS-SECTION . . . . . . . . . . . . . . . . . . . . . METHOD FOR VERIFYING GRADE L0 COMPLIANCE OF THIN WALL SECTIONS

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STANDARDS AUSTRALIA

Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia. Permission may be conditional on an appropriate royalty payment. Requests f or permission and information on commercial software royalties should be directed to the head office of Standards Australia. Standards A ustralia will permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively in-house by purchasers of the Standard without payment of a royalty or advice to Standards Australia. Standards Australia will also permit the inclusion of its copyright m aterial in computer software programs f or no royalty payment provided such programs are used exclusively in-house by the creators of the programs. Care should be taken to ensure that material used is from the current edition of t he Standard and that it i s updated whenever the Standard is amended or revised. The number and date of the Standard should t herefore be clearly i dentified. The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time.

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AS 1163—1991

STANDARDS AUSTRALIA Australian Standard Structural steel hollow sections 1 SCOPE This Standard specifies the requirements for cold-formed steel hollow sections for structural purposes, for the six grades of steel that are suitable for welding. NOTES: 1 For guidelines on information to be supplied at the time of enquiry or order, see Appendix A. 2 Alternative means for demonstrating compliance with this Standard are given in Appendix B.

2 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 105 0

Met hod s fo r t he a nal ysi s o f i ron a nd st eel

1171

Methods for magnetic particle testing of ferromagnetic products and components

1199

Sampling procedures and tables for inspection by attributes

121 0

SA A Un fir ed P re ssur e Ve sse ls C ode

1213

Ir on a nd st eel — Met hods of sampli ng

139 1

Met hod s fo r t ensi le t est in g of m et al s

1399

Guide to AS 1199— Sampling procedures and tables for inspection by attributes

1544 1544.2

Met hods for i mpact t est s on m et als Pa rt 2: C har py V -notc h

1553

Cover ed el ect rodes fo r weld ing

1554 1554.1

SA A St ructu ral S teel We ld ing C ode Part 1: Welding of steel structures

2084

Non-destructive testing— Eddy current testing of metal tubes

390 0

Qu ali t y s yst ems — Gu ide t o se le cti on and use

3904

Quality management and quality system elements

K1

Met hod s fo r t he s ampl in g and ana ly sis of ir on a nd s teel

ISO 256 6 256 6- 1

St e el — C on vers ion of e lo ngat io n val ues Pa rt 1 : C arb on a nd lo w al loy s tee ls

Guide 44

General rules of ISO or IEC international third-party certification schemes for products

3 DEFINITIONS For the purpose of this Standard, the definitions below apply. 3.1 Batch — hollow sections of the same size, thickness and grade manufactured from the same cast. 3.2 Cast analysis—chemical analysis determined from a test sample taken during casting. 3.3 Cold-formed hollow section — hollow sections formed and shaped at ambient temperature from a single st rip of steel, both edges of which are continuously welded by either the electric resistance or submerged arc process. 3.4 Longitudinal direction — direction parallel to the longitudinal weld. 3.5 Product analysis —chemical analysis determined from a test sample of the finished material. 3.6 Testing —mechanical and chemical analysis tests as required by this Standard. 3.7 Test piece —piece prepared for testing, made from a test specimen by a mechanical operation. 3.8 Test sample — portion of material or product or a group of i tems selected from a batch or group by sampling. 3.9 Test specimen —portion or a single item taken from the test sample for the purpose of applying a particular test. 3.10 Transverse direction — direction at right angles t o the longitudinal weld. 3.11 Unit —length of hollow section. 4 DESIGNATION All grades shall be designated as follows: Example: AS 1163–C250L0 where AS 1163 = number of this Standard C = cold-f ormed secti ons 250 = nominal minimum yield strength of steel L = guaranteed impact properties of the material 0 = l ow t emper atu re i mpact te st a t 0 °C COPYRIGHT

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5 STEELMAKING PROCESS The steel shall be made to f ine-grained continuously-cast practice. 6 CHEMICAL COMPOSITION 6.1 General The method of sampling for chemical analysis shall be in accordance with AS 1213. Chemical composition shall be determined in accordance with AS 1050 or AS K1. 6.2 Cast analysis A chemical analysis of the steel from each cast shall be made to determine the proportions of the specified elements. The reported cast analysis of the steel from which a hollow section is manufactured shall conform to the limits given in Table 1 for the appropriate grade. 6.3 Product analysis The chemical analysis of the finished product is not a requirement of this Standard. When the steel is subject to a product analysis, the analysis shall conform to the limits given in Table 1 for t he appropriate grade. TABLE 1 CHEMICAL COMPOSITION Grades (see Note 1)

Chemical composition (cast or product analysis) (see Note 2) % max. C

Si

Mn

P

S

Mo

Al (see Note 3)

Ti

Micro-alloying elements

CE (see Note 4)

C250 C250L0

0.12

0.05

0.50

0.040

0.030

0.10

0.10

0.04

0.030 (see Note 6)

0.25

C350 C350L0

0.20 (see Note 5)

0.25

1.60

0.040

0.030

0.10

0.10

—

0.15 (see Note 7)

0.39

C450 C450L0

0.20

0.45

1.60

0.040

0.030

0.35

0.10

—

0.15 (see Note 7)

0.39

NOTES: 1 The use of sulfide modification steelmaking techniques for these grades is permitted. 2

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The following elements (a) Copper: (b) Nickel: (c ) Chro mi um : Limits specified are for

may be present to the limits stated, subject to a total content of 0.3 percent: 0.15 percent 0.15 percent 0.15 p er cent soluble or total aluminium.

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Carbon equivalent (CE) is calculated from the following equation:

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At the discretion of the manufacturer, the carbon content (C) of grades C350 and C350L0 may be increased to 0.26 percent provided all other requirements are met. Applies to niobium and vanadium only. However niobium greater than 0.010 percent is not permitted.

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Applies to niobium, vanadium and titanium only. However vanadium greater than 0.10 percent i s not permitted.

7 DIMENSIONS, MASS AND GEOMETRICAL PROPERTIES Appendix C gives dimensions, mass and geometrical properties of common sizes of hollow sections produced in accordance with Table 1. 8 DIMENSIONAL TOLERANCES 8.1 Length The maximum permissible variation in the length of a hollow section product specified as exact or cut shall conform to the li mits given in T able 2. When it is not specified as exact or cut, the maximum permissible variation from the length is +100, −0 mm. TABLE 2 MAXIMUM PERMISSIBLE VARIATION IN LENGTH SPECIFIED AS EXACT OR CUT Range of length m

Maximum permissible variation i n length mm

≤ 14

+6

−0 > 14 to ≤ 18

+ 10 −0

> 18

Not specifi ed (see Note)

NOTE: Tolerances should be specified at time of order.

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8.2 Cross-section The maximum permissible variation in the cross-sectional dimensions of a hollow section shall conform to the appropriate limits given in Figures 1 and 2. A thickness tolerance of ±10 percent shall apply. The r adii of the corners of square hollow sections (SHS) and rectangular hollow sections (RHS) shall be as follows: (a) Maximum outside radius:

3 t .

(b) Minimum outside radius:

1.5t (for RHS and SHS with perimeter equal to 50 × 50 or less). 1.8 t (for RHS and SHS with perimeter greater than 50 × 50).

where t is the section thickness, in millimetres.

millimetres Specified outside diameter (d o )

Maximum permissible variation in specified outside diameter

≤50

+0.4 −0.8 ±0.01 d o

>50

FIGURE 1 MAXIMUM PERMISSIBLE VARIATION IN C ROSS-SECTION OF CIRCULAR HOLLOW SECTIONS

Outside dimension of side (b) or (d)

Maximum permissible variation in specified outside dimension of side

Maximum permissible out-ofsquare at corners

mm

mm

degree

≤50

±0.5

>50

±0.01 b or ± 0.01 d

1

FIGURE 2 MAXIMUM PERMISSIBLE VARIATION IN C ROSS-SECTION OF SQUARE AND RECTANGULAR HOLLOW SECTIONS

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8.3 Straightness The maximum permissible variation from straightness in a length of hollow section product shall not exceed:

8.4 Twist (rectangular sections) For rectangular hollow sections, the maximum value of V (see F igure 3) shall not exceed 2 mm plus 0.5 mm per metre length.

9 MASS TOLERANCE The mass of a length of hollow section shall be not less than 0.96 times the specified mass. 10 FREEDOM FROM DEFECTS The section shall be free from lamination, surface flaws and other defects detrimental to it s use f or structural purposes. 11 REMOVAL OF SURFACE DEFECTS 11.1 Grinding When removal of surface defects by grinding is adopted, the ground area shall be well flared and the remaining wall thickness in the ground area shall be not less than 90 percent of the nominal thickness. 11.2 Depositing weld metal Welding used in the repair of surface defects shall be performed in accordance with AS 1554.1, using low-hydrogen electrodes complying with AS 1553. Welds shall be sound, the weld metal being t horoughly fused without undercutting or overlap. The weld metal shall project at least 1.5 mm above t he rolled surface and the projecting metal shall be removed by grinding flush with the rolled surface. 12 REMOVAL OF UPSET Hollow sections produced by electric resistance welding shall have the external upset removed. 13 MECHANICAL TESTING 13.1 General Test pieces for tensile tests, impact tests and cold flattening tests shall be taken from a single test specimen. Test pieces shall be in the same condition as the sections that they represent. 13.2 Orientation of test pieces 13.2.1 Tensile test and impact test The test piece shall be cut such that the major axis is in the longitudinal direction. 13.2.2 Cold flattening test The test piece shall be cut in the transverse direction. 13.3 Position and orientation of test piece 13.3.1 Tensile test and impact test The t est piece shall be selected from any position along the length of the test specimen such that the requirements of Clause 13.1 are complied with. 13.3.2 Cold flattening test A test piece shall be cut from one end of a test specimen which contains a longitudinal weld.

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AS 1163—1991

14 PREPARATION OF TEST PIECES FOR MECHANICAL TESTING 14.1 General It shall be permissible to discard a test piece which shows defective machining or develops flaws during preparation and to submit another test piece. 14.2 Tensile test pieces 14.2.1 Form of test piece The t ensile test piece shall be in the form given in either Item (a) or (b) below: (a) A test piece with dimensions conforming to those specified in AS 1391, cut from the test specimen. The l ocation of the test piece shall be as specified in Clause 14.2.2 or Clause 14.2.3, as appropriate. (b) A length of the full section test specimen. The test piece shall be aged in accordance with Clause 14.4. 14.2.2 Circular hollow sections (CHS) The tensile test piece cut from a test specimen shall not be flattened between gauge marks. For a length of circular hollow section containing a longitudinal weld, the test piece shall be taken from approximately 90 degrees from the weld. 14.2.3 Rectangular hollow sections (RHS) The tensile test piece cut from a test specimen shall be taken from any side midway between and excluding the corners. The test piece shall not i nclude a longitudinal weld. 14.3 Impact test piece Three test pieces shall be prepared from each specimen and cut parallel to the longitudinal axis of the hollow section, with the axis of the notch perpendicular to the rolled surface of the section. For rectangular hollow sections, the test specimen shall be taken f rom the middle of either the long or short side remote from the weld (see Figure 4). The test piece shall be prepared in accordance with AS 1544.2 using, where necessary, the largest practicable subsidiary test piece. It shall be permissible to discard a test piece which shows defective machining or develops flaws and to submit another test piece. 14.4 Ageing treatment Prior to tensile or impact testing, the test pieces shall be aged by heating to a temperature between 150 °C and 200 °C for a period not less than 15 min. 14.5 Cold flattening test The test piece shall be taken in the form of a cross-section from one end of a finished length of a circular hollow section which contains a longitudinal weld. The length of the test piece shall be not less than 40 mm. All burrs shall be r emoved before testing.

15 MECHANICAL TEST REQUIREMENTS 15.1 Tensile test The tensile test shall be carried out i n accordance with AS 1391. The r ate of straining when approaching the yield point shall lie within the highest range of strain rate given in AS 1391. Elongation results shall be reported on a gauge length L o = 5.65 So where S o is the original cross-sectional area. Conversion of results from a non-proportional gauge length shall be in accordance with ISO 2566-1. 15.2 Impact test Impact tests shall be performed at 0 ° C in accordance with AS 1544.2.

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15.3 Cold flattening test The flattening test piece shall be flattened at room temperature between two parallel plane surfaces with the weld located as follows in relation to the direction of flattening: (a ) Fo r d o ≤ 60 mm: at 45 degrees (b) For d o > 60 mm: at 90 degrees where d o is the nominal outside diameter of the circular hollow section, in millimetres. The test piece shall be flattened until the distance between the surfaces is 0.75 d o . 16 MECHANICAL PROPERTIES 16.1 Tensile test When tested in accordance with Clause 15.1, the yield strength, tensile strength and elongation of the test piece shall conform to the limits given in Table 3 for the appropriate grade. 16.2 Impact test When tested in accordance with Clause 15.2, the absorbed energy value ( J ) resulting from— (a) each individual test; and (b) the average of three tests; shall conform to the specified values given in Table 4 for the appropriate grade. 16.3 Cold flattening test When tested in accordance with Clause 15.3, a test piece taken from a circular section with a longitudinal weld shall show no signs of cracks or flaws. Superficial ruptures arising from surface imperfections shall not be cause for rejection. TABLE 3 TENSILE TEST REQUIREMENTS

Grade

Minimum elongation as a proportion of the gauge length of 5.65 √ S o

Mi nimum yield strength

Minimum tensile strength

MPa

MPa

Circular hollow sections

Rectangular hollow sections

250 350 450

320 430 500

22 20 16

18 16 14

C250, C250L0 C350, C350L0 C450, C450L0

percent

TABLE 4 CHARPY V-NOTCH IMPACT TEST REQUIREMENTS Minimum absorbed energy, J

Test temperature Grade

°C

Size of test piece 10 mm × 10 mm

10 mm × 7.5 mm

10 mm × 5 mm

10 mm × 2.5 mm

Average of Individual 3 tests test




C250L0

0

27

20

22

16

18

13

9

7

C350L0

0

27

20

22

16

18

13

9

7

C450L0

0

27

20

22

16

18

13

9

7

NOTE: For 10 × 10, 10 × 7.5, 10 × 5 or 10 × 2.5 mm test piece sizes where it is not practical to machine from product, it is permissible to designate the product as grade L0 pro vided requirements specified in Appendix D are met.

17 ROUNDING OF NUMBERS 17.1 General For the purpose of deciding whether a particular requirement of this Standard is complied with, the determined value, observed or calculated, shall be rounded off i n accordance with AS 2706. The number of significant places retained in the rounded-off values shall be the same as t hat of t he specified value in t he appropriate material Standard. 17.2 Tensile properties The determined value of tensile strength shall be rounded off to the nearest 10 MPa and the determined value of yield strength shall be rounded off to the nearest 5 MPa. 18 MARKING The material shall be marked or tagged (for bundles) — (a) to identify the manufacturer; (b) to indicate t he grade of steel (see Clause 4); (c) to enable product dimensions to be identified with this Standard; and (d) with a serialized identification number. COPYRIGHT

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AS 1163—1991

Where marking is by means of die-stamping, low-stress stamps may be used. NOTES: 1 Manufacturers making a statement of compliance with this Australian Standard on a product, or on packaging or promotional material related t o that product, are advised to ensure that such compliance is capable of being verified. 2

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Independent certification is available from Standards Australia under the StandardsMark Product Certification Scheme. The StandardsMark, shown below, is a registered certification trade mark owned by Standards Australia and granted under licence to manufacturers whose products comply with t he requirements of suitable Australian Standards and w ho operate sound quality assurance programs t o ensure consistent product quality. Further information on product certification and the suitability of this Standard for certification is available from Standards Australia’s Quality Assurance Services, 1 The Crescent, Homebush, N.S.W. 2140.

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APPENDIX A

PURCHASING GUIDELINES (Informative) A1 INFORMATION TO BE SUPPLIED BY THE PURCHASER The purchaser should supply the following information at the time of enquiry or order, after making due reference to the explanation, advice and recommendations contained in this Appendix: (a) Designation of grade and Standard number. (b) Quantity and delivery instructions (dates, schedules, delivery point). (c) Dimensions of steel, e.g. section, length, mass per unit length applicable, bundle masses. NOTE: Attention is drawn to the desirability o f specifying cross-sectional dimensions i n terms of Appendix C. It should be noted that sizes not l isted in Appendix C are not precluded for specification purposes, b ut are subject to negotiation.

(d) Whether a test certificate or certificate of compliance is required (see Paragraph A3). (e) Any information concerning processing or end-use that the purchaser considers would be of assistance. (f)

Whether it i s the intention of the purchaser to inspect the steel at the manufacturer’s works (see Paragraph A4).

(g) Special finish or coating, e.g. galvanized. (h) End finish. (i) (j)

Special tolerances. Any exceptions to the Standard or any special or supplementary requirements, e.g. impact testing at

−30 °C for rolled over protection structure (ROPS).

(k) If impact testing other than that specified in this Standard is required, t he test temperature, size of test piece and minimum absorbed energy value resulting from — (i)

each individual test; and

(ii) the average of three tests. A2 SUPPLEMENTARY TESTS A2.1 Non-destructive testing If non-destructive testing is required by the purchaser, the test method to be used and the limits of acceptance should be determined at the time of enquiry or order. The test method should be in accordance with AS 1171 and AS 2084, where appropriate. A2.2 Independent test In the event of a dispute as to the compliance of the steel with this Standard, the purchaser and the supplier should agree to have referee te sting carried out by an independent laboratory, whose results should be accepted as final. A laboratory registered by the National Association of Testing Authorities, Australia, for the field and class of testing, is recommended. A3 CERTIFICATES OF COMPLIANCE AND TEST CERTIFICATES A3.1 Certificates of compliance complies with this Standard.

Certificates of compliance include a statement that the material

A3.2 Test certificates Test certificates show such results as may be required by agreement between the purchaser and t he manufacturer, relating to — (a) tests performed by the manufacturer for the purpose of establishing compliance with this Standard; and (b) additional tests as agreed between t he purchaser and manufacturer. A4 INSPECTION If it is the purchaser’s intention to undertake any of the following functions at the manufacturer’s works, this should be notified at the time of enquiry or order, and should be accomplished in a manner which will not interfere with the operation of the works: (a) Inspection of the product during manufacture. (b) Witnessing of the selection and identification of test samples. (c) Witnessing the tests being performed. The manufacturer should afford the purchaser all reasonable facilities to establish that the steel complies with this Standard.

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AS 1163—1991

APPENDIX B

MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD (Informative) B1 SCOPE This Appendix sets out the following different methods by which compliance with this Standard can be demonstrated by the manufacturer or supplier: (a) Assessment by means of statistical sampling. (b) The use of Standards Australia’s StandardsMark scheme. (c) Assurance using the acceptability of the supplier’s quality system. (d) Other such means proposed by the manufacturer or supplier and acceptable to the customer. B2 STATISTICAL SAMPLING Statistical sampling is a procedure that enables decisions to be made about the quality of batches of items after inspecting or testing only a portion of those items. This procedure will only be valid if the sampling plan has been determined on a statistical basis and the following requirements are met: (a) The sample is drawn randomly from a population of product of known history that enables verificati on that the product was made from known materials at essentially the same time by essentially the same processes and under essentially the same system of control. (b) For each different situation, a suitable sampling plan is defined. A sampling plan for one manufacturer of given capability and product throughput may not be relevant to another manufacturer producing the same items. In order for statistical sampling to be meaningful to the customer, the manufacturer or supplier needs to demonstrate how the a bove conditions have been satisfied. Sampling and the establishment of a sampling plan should be carried out in accordance with AS 1199, guidance to which is given in AS 1399. B3 PRODUCT CERTIFICATION— STANDARDSMARK The general purpose of StandardsMark certification is t o provide independent assurance of the claim by the manufacturer that products comply with the stated Australian or International Standard. It is a certification scheme that meets the criteria of an ISO Type 5 scheme as specified by ISO Guide 44 in that, as well as full type testing from independently sampled production and subsequent verification of conformance, it requires the manufacturer to maintain an effective quality plan to control production to ensure conformance with the relevant St andard. The S tandardsMark serves to indicate that the products consistently conform to t he requirements of the Standard. The StandardsMark can only be used by manufacturers approved and licensed by Standards Australia and only when accompanied by the number of the applicable Standard. B4 SUPPLIER’S QUALITY SYSTEM Where the manufacturer or supplier can demonstrate an audited and registered quality management system complying with the requirements of the appropriate or sti pulated Australian or International S tandard f or suppliers’ quality systems, such demonstration may provide the necessary c onfidence t hat the specified requirements w ill be met. The quality assurance requirements need to be agreed between the customer and supplier and should include a quality or inspection and test plan to ensure product conformity. Guidance in determining the appropriate quality management system is given in AS 3900 and AS 3904. B5 OTHER MEANS OF ASSESSMENT If the above methods are considered inappropriate, determination of compliance with the requirements of this Standard may be assessed on the basis of the results of testing coupled with the manufacturer’s guarantee of product conformance. Irrespective of acceptable quality levels (AQLs) or test frequencies, the responsibility remains with the manufacturer or supplier to deliver products that conform with the full requirements of the Standard. To assess compliance with this specification, consideration may be given to the results of testing in accordance with Paragraphs B5.1, B5.2 and B5.3. B5.1 Sampling of tensile test, i mpact test and cold flattening test Test samples should be taken as follows: (a) One sample for a batch not exceeding 50 tonnes. (b) One additional sample from the balance of the batch.

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B5.2 Compliance Each batch complies with this S tandard if all of the samples tested give results which are within the specified limits. If any of the properties of the tested samples give results outside the specified limits, the requirements of Paragraph B5.3 apply. B5.3 Retests B5.3.1 Tensile t est and cold flattening test If a retest is carried out, one or more of the following procedures should be adopted: (a) Make two additional tests on test pieces from samples taken from a position as near as practical to the failed sample. The unit complies with this St andard provided both additional test pieces comply with Clauses 16.1 and 16.3 as appropriate. (b) Make two test samples at random fr om the remainder of the test batch. If the test pieces from both additional samples comply with Clauses 16.1 and 16.3 as appropriate, the remainder complies with this Standard. If one of these additional samples fails to comply, the steel of the applicable test batch does not comply with this Standard. (c) Make test samples from each rolled unit of steel and individually test in accordance with this Standard. If the test piece from the additional sample complies with Clauses 16.1 and 16.3 as appropriate, the rolled unit of steel complies with this Standard. (d) Reprocess (e.g. heat-treat) the unit which failed and perform another complete set of tests in accordance with Paragraph B5.1. The unit complies with this Standard if the reprocessed test pieces comply with Clauses 16.1 and 16.3 as appropriate. The remainder of the test batch complies with this Standard provided it is reprocessed in the same manner as the above reprocessed unit and complies with the requirements of Clauses 16.1 and 16.3 as appropriate. B5.3.2 Impact tests If a retest is carried out, one or more of the following procedures should be adopted: (a) If the average value of t he three impact test results is less than the specified minimum average, or if one value is less than the specified individual test value given in Table 4 — (i)

test three additional test pieces from the original sample in accordance with Clause 14.3; and

(ii)

add the results to those previously obtained and calculate a new average. If the average value of the six tests is not less than the specified minimum average, and not more than one result of the six tests is below the specified individual test value, then the unit complies with this Standard.

(b) Take two further test samples at random from the remainder of the test batch. If the test pieces from both additional samples comply with Clause 16.2, then the remainder complies with this Standard. If one of these additional samples fails to comply, the batch (see Paragraph B5.1) does not comply with this Standard. (c) Take test samples from each rolled unit of steel and individually test in accordance w ith this Standard. If the test piece from the additional sample complies with Clause 16.2, then the rolled unit of steel complies with this Standard. (d) Reprocess (e.g. heat-treat) the units which failed and perform another complete set of tests in accordance with Paragraph B5.1. If the reprocessed test pieces comply with Clauses 16.1, 16.2 and, if applicable, Clause 16.3, then the unit complies with this Standard. The remainder of the test batch complies with this Standard provided it is reprocessed in the same manner as the above reprocessed units and complies with the requirements of Clauses 16.1, 16.2 and, if applicable, Clause 16.3.

COPYRIGHT

13

APPENDIX C

DIMENSIONS AND PROPERTIES OF CROSS-SECTION (Normative) The following Figures C1 to C6 are not restrictive (see Clause 7). Other sizes in various grades are also available in Australia. Although they appear in t he following tables, certain sizes may not always be available in all grades. NOTE: Users are advised to check availability before incorporating hollow sections in major designs.

COPYRIGHT

AS 1163—1991

AS 1163—1991

14

1

2

Designati on Outside Thickness diameter d o mm

3

4

Mass per unit length

6

7

8

per unit mass d o t

kg/m

m2/m

9

10

11

12

Torsion constant

Torsion modulus

About any axis Ratio

per unit length

t mm

5

External surface area

m2/t

Gross area of crosssection

Second moment of area

Elastic section modulus

Plastic section modulus

Radius of gyration

A g

l

Z

S

r

J

C

mm2

106 mm4

103 mm3

103 mm3

mm

106 mm4

103 mm3

610.0 × 12.7 CHS 610.0 × 9.5 CHS 610.0 × 6.4 CHS

187 141 95.3

1.92 1.92 1.92

10.2 13.6 20.1

48.0 64.2 95.3

23 800 17 900 12 100

1 060 808 553

3 490 2 650 1 810

4 530 3 430 2 330

211 212 213

2 130 1 620 1 110

6 970 5 300 3 620

508.0 × 12.7 CHS 508.0 × 9.5 CHS 508.0 × 6.4 CHS

155 117 79.2

1.60 1.60 1.60

10.3 13.7 20.2

40.0 53.5 79.4

19 800 14 900 10 100

606 462 317

2 390 1 820 1 250

3 120 2 360 1 610

175 176 177

1 210 925 634

4 770 3 640 2 500

165.1 × 5.4 CHS 165.1 × 5.0 CHS

21.3 19.7

0.519 0.519

24.4 26.3

30.6 33.0

2 710 2 510

8.65 8.07

105 97.7

138 128

56.5 56.6

17.3 16.1

209 195

FIGURE C1 (in part) CIRCULAR HOLLOW S ECTIONS OF GRADE C250 COPYRIGHT

AS 1163—1991

15

1

2


3

4


Ratio per unit length

per unit mass d o t

t mm

5


kg/m

m /m

2

m /t

2

6

7




l 2

9

10

11

12

Torsion constant

Torsion modulus

About any axis

A g mm

8

6

10 mm


Z 4

3

10 mm

S 3

3

10 mm

3

Radius of gyration r

J

mm

10 mm

6

C 4

3

10 mm

3

139.7 × 5.4 CHS 139.7 × 5.0 CHS

17.9 16.6

0.439 0.439

24.5 26.4

25.9 27.9

2 280 2 120

5.14 4.81

73.7 68.8

97.4 90.8

47.5 47.7

10.3 9.61

114.3 × 5.4 CHS 114.3 × 4.5 CHS

14.5 12.2

0.359 0.359

24.8 29.5

21.2 25.4

1 850 1 550

2.75 2.34

48.0 41.0

64.1 54.3

38.5 38.9

5.49 4.69

96.1 82.0

101.6 × 5.0 CHS 101.6 × 4.0 CHS

11.9 9.63

0.319 0.319

26.8 33.2

20.3 25.4

1 520 1 230

1.77 1.46

34.9 28.8

46.7 38.1

34.2 34.5

3.55 2.93

69.9 57.6

88.9 × 5.9 CHS 88.9 × 5.0 CHS 88.9 × 4.0 CHS

12.1 10.3 8.38

0.279 0.279 0.279

23.1 27.0 33.3

15.1 17.8 22.2

1 540 1 320 1 070

1.33 1.16 0.963

30.0 26.2 21.7

40.7 35.2 28.9

29.4 29.7 30.0

2.66 2.33 1.93

59.9 52.4 43.3

76.1 × 5.9 CHS 76.1 × 4.5 CHS 76.1 × 3.6 CHS

10.2 7.95 6.44

0.239 0.239 0.239

23.4 30.1 37.1

12.9 16.9 21.1

1 300 1 010 820

0.807 0.651 0.540

21.2 17.1 14.21

29.1 23.1 8.9

24.9 25.4 25.7

1.61 1.30 1.08

42.4 34.2 28.4

60.3 × 5.4 CHS 60.3 × 4.5 CHS 60.3 × 3.6 CHS

7.31 6.19 5.03

0.189 0.189 0.189

25.9 30.6 37.6

11.2 13.4 16.8

931 789 641

0.354 0.309 0.259

11.8 10.2 8.58

16.3 14.0 11.6

19.5 19.8 20.1

0.709 0.618 0.517

23.5 20.5 17.2

48.3 × 5.4 CHS 48.3 × 4.0 CHS 48.3 × 3.2 CHS

5.71 4.37 3.56

0.152 0.152 0.152

26.6 34.7 42.6

8.9 12.1 15.1

728 557 453

0.170 0.138 0.116

7.04 5.70 4.80

9.99 7.87 6.52

15.3 15.7 16.0

0.340 0.275 0.232

14.1 11.4 9.59

42.4 × 4.9 CHS 42.4 × 4.0 CHS 42.4 × 3.2 CHS

4.53 3.79 3.09

0.133 0.133 0.133

29.4 35.2 43.1

8.7 10.6 13.3

577 483 394

0.103 0.089 9 0.076 2

4.87 4.24 3.59

6.93 5.92 4.93

13.4 13.6 13.9

0.206 0.180 0.152

9.74 8.48 7.19

33.7 × 4.5 CHS 33.7 × 4.0 CHS 33.7 × 3.2 CHS

3.24 2.93 2.41

0.106 0.106 0.106

32.7 36.1 44.0

7.5 8.4 10.5

413 373 307

0.045 0 0.041 9 0.036 0

2.67 2.49 2.14

3.87 3.55 2.99

10.4 10.6 10.8

0.090 1 0.083 8 0.072 1

5.35 4.97 4.28

26.9 × 4.0 CHS 26.9 × 3.2 CHS 26.9 × 2.6 CHS

2.26 1.87 1.56

0.084 5 0.084 5 0.084 5

37.4 45.2 54.2

6.7 8.4 10.3

288 238 198

0.019 4 0.017 0 0.014 8

1.45 1.27 1.10

2.12 1.81 1.54

8.22 8.46 8.64

0.038 9 0.034 1 0.029 6

2.89 2.53 2.20

21.3 × 3.6 CHS 21.3 × 3.2 CHS 21.3 × 2.6 CHS

1.57 1.43 1.20

0.066 9 0.066 9 0.066 9

42.6 46.8 55.8

5.9 6.7 8.2

200 182 153

0.008 16 0.007 68 0.006 81

0.767 0.722 0.639

1.14 1.06 0.915

6.39 6.50 6.68

0.016 3 0.015 4 0.013 6

1.53 1.44 1.28

17.2 × 2.9 CHS 17.2 × 2.3 CHS

1.02 0.845

0.054 0 0.054 0

52.8 63.9

5.9 7.5

130 108

0.003 47 0.003 06

0.403 0.356

0.601 0.515

5.16 5.33

0.006 93 0.006 12

0.806 0.711

13.5 × 2.9 CHS 13.5 × 2.3 CHS

0.758 0.635

0.042 4 0.042 4

55.9 66.8

4.7 5.9

0.001 46 0.001 32

0.216 0.196

0.334 0.293

3.89 4.04

0.002 92 0.002 64

0.432 0.392

96.6 80.9

FIGURE C1 (in part) CIRCULAR HOLLOW S ECTIONS OF GRADE C250

COPYRIGHT

147 138

AS 1163—1991

15

1

2


3

4



per unit mass d o t

t mm

5


kg/m

m /m

2

m /t

2

6

7




l 2

9

10

11

12

Torsion constant

Torsion modulus

About any axis

A g mm

8

6

10 mm


Z 4

3

10 mm

S 3

3

10 mm

3


J

mm

10 mm

6

C 4

3

10 mm

3

139.7 × 5.4 CHS 139.7 × 5.0 CHS

17.9 16.6

0.439 0.439

24.5 26.4

25.9 27.9

2 280 2 120

5.14 4.81

73.7 68.8

97.4 90.8

47.5 47.7

10.3 9.61

114.3 × 5.4 CHS 114.3 × 4.5 CHS

14.5 12.2

0.359 0.359

24.8 29.5

21.2 25.4

1 850 1 550

2.75 2.34

48.0 41.0

64.1 54.3

38.5 38.9

5.49 4.69

96.1 82.0

101.6 × 5.0 CHS 101.6 × 4.0 CHS

11.9 9.63

0.319 0.319

26.8 33.2

20.3 25.4

1 520 1 230

1.77 1.46

34.9 28.8

46.7 38.1

34.2 34.5

3.55 2.93

69.9 57.6

88.9 × 5.9 CHS 88.9 × 5.0 CHS 88.9 × 4.0 CHS

12.1 10.3 8.38

0.279 0.279 0.279

23.1 27.0 33.3

15.1 17.8 22.2

1 540 1 320 1 070

1.33 1.16 0.963

30.0 26.2 21.7

40.7 35.2 28.9

29.4 29.7 30.0

2.66 2.33 1.93

59.9 52.4 43.3

76.1 × 5.9 CHS 76.1 × 4.5 CHS 76.1 × 3.6 CHS

10.2 7.95 6.44

0.239 0.239 0.239

23.4 30.1 37.1

12.9 16.9 21.1

1 300 1 010 820

0.807 0.651 0.540

21.2 17.1 14.21

29.1 23.1 8.9

24.9 25.4 25.7

1.61 1.30 1.08

42.4 34.2 28.4

60.3 × 5.4 CHS 60.3 × 4.5 CHS 60.3 × 3.6 CHS

7.31 6.19 5.03

0.189 0.189 0.189

25.9 30.6 37.6

11.2 13.4 16.8

931 789 641

0.354 0.309 0.259

11.8 10.2 8.58

16.3 14.0 11.6

19.5 19.8 20.1

0.709 0.618 0.517

23.5 20.5 17.2

48.3 × 5.4 CHS 48.3 × 4.0 CHS 48.3 × 3.2 CHS

5.71 4.37 3.56

0.152 0.152 0.152

26.6 34.7 42.6

8.9 12.1 15.1

728 557 453

0.170 0.138 0.116

7.04 5.70 4.80

9.99 7.87 6.52

15.3 15.7 16.0

0.340 0.275 0.232

14.1 11.4 9.59

42.4 × 4.9 CHS 42.4 × 4.0 CHS 42.4 × 3.2 CHS

4.53 3.79 3.09

0.133 0.133 0.133

29.4 35.2 43.1

8.7 10.6 13.3

577 483 394

0.103 0.089 9 0.076 2

4.87 4.24 3.59

6.93 5.92 4.93

13.4 13.6 13.9

0.206 0.180 0.152

9.74 8.48 7.19

33.7 × 4.5 CHS 33.7 × 4.0 CHS 33.7 × 3.2 CHS

3.24 2.93 2.41

0.106 0.106 0.106

32.7 36.1 44.0

7.5 8.4 10.5

413 373 307

0.045 0 0.041 9 0.036 0

2.67 2.49 2.14

3.87 3.55 2.99

10.4 10.6 10.8

0.090 1 0.083 8 0.072 1

5.35 4.97 4.28

26.9 × 4.0 CHS 26.9 × 3.2 CHS 26.9 × 2.6 CHS

2.26 1.87 1.56

0.084 5 0.084 5 0.084 5

37.4 45.2 54.2

6.7 8.4 10.3

288 238 198

0.019 4 0.017 0 0.014 8

1.45 1.27 1.10

2.12 1.81 1.54

8.22 8.46 8.64

0.038 9 0.034 1 0.029 6

2.89 2.53 2.20

21.3 × 3.6 CHS 21.3 × 3.2 CHS 21.3 × 2.6 CHS

1.57 1.43 1.20

0.066 9 0.066 9 0.066 9

42.6 46.8 55.8

5.9 6.7 8.2

200 182 153

0.008 16 0.007 68 0.006 81

0.767 0.722 0.639

1.14 1.06 0.915

6.39 6.50 6.68

0.016 3 0.015 4 0.013 6

1.53 1.44 1.28

17.2 × 2.9 CHS 17.2 × 2.3 CHS

1.02 0.845

0.054 0 0.054 0

52.8 63.9

5.9 7.5

130 108

0.003 47 0.003 06

0.403 0.356

0.601 0.515

5.16 5.33

0.006 93 0.006 12

0.806 0.711

13.5 × 2.9 CHS 13.5 × 2.3 CHS

0.758 0.635

0.042 4 0.042 4

55.9 66.8

4.7 5.9

0.001 46 0.001 32

0.216 0.196

0.334 0.293

3.89 4.04

0.002 92 0.002 64

0.432 0.392

96.6 80.9

147 138


COPYRIGHT

AS 1163—1991

16

1

2


3

4

6

Ratio


External surface area Mass per unit length

per unit length

per unit mass d o t

t mm

5

kg/m

m2/m

m2/t

7

8

9

10

11

12

Torsion constant

Torsion modulus

About any axis Second moment of area



Radius of gyration

A g

l

Z

S

r

J

C

mm2

106 mm4

103 mm3

103 mm3

mm

106 mm4

103 mm3

457.0 × 12.7 CHS 457.0 × 9.5 CHS 457.0 × 6.4 CHS

139 105 71.1

1.44 1.44 1.44

10.3 13.7 20.2

36.0 48.1 71.4

17 700 13 400 9 060

438 334 230

1 920 1 460 1 010

2 510 1 900 1 300

157 158 159

876 669 460

3 830 2 930 2 010

406.4 × 12.7 CHS 406.4 × 9.5 CHS 406.4 × 6.4 CHS

123 93.0 63.1

1.28 1.28 1.28

10.4 13.7 20.2

32.0 42.8 63.5

15 700 11 800 8 040

305 233 161

1 500 1 150 792

1 970 1 500 1 020

139 140 141

609 467 322

3 000 2 300 1 580

355.6 × 12.7 CHS 355.6 × 9.5 CHS 355.6 × 6.4 CHS

107 81.1 55.1

1.12 1.12 1.12

10.4 13.8 20.3

28.0 37.4 55.6

13 700 10 300 7 020

201 155 107

1 130 871 602

1 490 1 140 781

121 122 123

403 310 214

2 260 1 740 1 200

323.9 × 12.7 CHS 323.9 × 9.5 CHS 323.9 × 6.4 CHS

97.5 73.7 50.1

1.02 1.02 1.02

10.4 13.8 20.3

25.5 34.1 50.6

12 400 9 380 6 380

151 116 80.5

930 717 497

1 230 939 645

110 111 112

301 232 161

1 860 1 430 994

273.1 × 9.3 CHS 273.1 × 6.4 CHS 273.1 × 4.8 CHS

60.5 42.1 31.8

0.858 0.858 0.858

14.2 20.4 27.0

29.4 42.7 56.9

7 710 5 360 4 050

67.1 47.7 36.4

492 349 267

647 455 346


93.3 94.3 94.9

134 95.4 72.8

983 699 533

AS 1163—1991

16

1

2

Designati on Outside Thickness diameter d o

3

4



per unit mass

6

mm

kg/m

m2/m

m2/t

7


d o t

t

mm

5


8

9

10

11

12

Torsion constant

Torsion modulus

About any axis Second moment of area



Radius of gyration

A g

l

Z

S

r

J

C

mm2

106 mm4

103 mm3

103 mm3

mm

106 mm4

103 mm3

457.0 × 12.7 CHS 457.0 × 9.5 CHS 457.0 × 6.4 CHS

139 105 71.1

1.44 1.44 1.44

10.3 13.7 20.2

36.0 48.1 71.4

17 700 13 400 9 060

438 334 230

1 920 1 460 1 010

2 510 1 900 1 300

157 158 159

876 669 460

3 830 2 930 2 010

406.4 × 12.7 CHS 406.4 × 9.5 CHS 406.4 × 6.4 CHS

123 93.0 63.1

1.28 1.28 1.28

10.4 13.7 20.2

32.0 42.8 63.5

15 700 11 800 8 040

305 233 161

1 500 1 150 792

1 970 1 500 1 020

139 140 141

609 467 322

3 000 2 300 1 580

355.6 × 12.7 CHS 355.6 × 9.5 CHS 355.6 × 6.4 CHS

107 81.1 55.1

1.12 1.12 1.12

10.4 13.8 20.3

28.0 37.4 55.6

13 700 10 300 7 020

201 155 107

1 130 871 602

1 490 1 140 781

121 122 123

403 310 214

2 260 1 740 1 200

323.9 × 12.7 CHS 323.9 × 9.5 CHS 323.9 × 6.4 CHS

97.5 73.7 50.1

1.02 1.02 1.02

10.4 13.8 20.3

25.5 34.1 50.6

12 400 9 380 6 380

151 116 80.5

930 717 497

1 230 939 645

110 111 112

301 232 161

1 860 1 430 994

273.1 × 9.3 CHS 273.1 × 6.4 CHS 273.1 × 4.8 CHS

60.5 42.1 31.8

0.858 0.858 0.858

14.2 20.4 27.0

29.4 42.7 56.9

7 710 5 360 4 050

67.1 47.7 36.4

492 349 267

647 455 346

93.3 94.3 94.9

134 95.4 72.8

983 699 533


AS 1163—1991

17

1

2


3

4



per unit mass

6

mm

kg/m

2

2

m /m

m /t

7


d o t

t

mm

5




l 2

9

10

11

12

Torsion constant

Torsion modulus

About any axis

A g mm

8

6

10 mm


Z 4

3

10 mm

S 3

3

10 mm

3


J

mm

10 mm

6

C 4

3

10 mm

3

219.1 × 8.2 CHS 219.1 × 6.4 CHS 219.1 × 4.8 CHS

42.6 33.6 25.4

0.688 0.688 0.688

16.1 20.5 27.1

26.7 34.2 45.6

5 430 4 280 3 230

30.3 24.2 18.6

276 221 169

365 290 220

74.6 75.2 75.8

60.5 48.4 37.1

552 442 339

168.3 × 7.1 CHS 168.3 × 6.4 CHS 168.3 × 4.8 CHS

28.2 25.6 19.4

0.529 0.529 0.529

18.7 20.7 27.3

23.7 26.3 35.1

3 600 3 260 2 470

11.7 10.7 8.25

139 127 98.0

185 168 128

57.0 57.3 57.8

23.4 21.4 16.5

278 254 196

165.1 × 3.5 CHS 165.1 × 3.0 CHS

13.9 12.0

0.519 0.519

37.2 43.2

47.2 55.0

1 780 1 530

5.80 5.02

70.3 60.8

91.4 78.8

57.1 57.3

11.6 10.0

141 122

139.7 × 3.5 CHS 139.7 × 3.0 CHS

11.8 10.1

0.439 0.439

37.3 43.4

39.9 46.6

1 500 1 290

3.47 3.01

49.7 43.1

64.9 56.1

48.2 48.3

6.95 6.02

99.5 86.2

CHS CHS CHS CHS

16.0 13.0 9.83 8.77

0.359 0.359 0.359 0.359

22.4 27.7 36.5 41.0

19.1 23.8 31.8 35.7

2 1 1 1

040 650 250 120

3.00 2.48 1.92 1.72

52.5 43.4 33.6 30.2

70.4 57.6 44.1 39.5

38.3 38.8 39.2 39.3

6.00 4.96 3.84 3.45

105 86.8 67.2 60.4

101.6 × 3.2 CHS 101.6 × 2.6 CHS

7.77 6.35

0.319 0.319

41.1 50.3

31.8 39.1

989 809

1.20 0.991

23.6 19.5

31.0 25.5

34.8 35.0

2.40 1.98

47.2 39.0

CHS CHS CHS CHS

11.3 9.96 6.76 5.53

0.279 0.279 0.279 0.279

24.7 28.1 41.3 50.5

16.2 18.5 27.8 34.2

1 440 1 270 862 705

1.26 1.12 0.792 0.657

28.3 25.3 17.8 14.8

38.3 34.0 23.5 19.4

29.6 29.8 30.3 30.5

2.52 2.25 1.58 1.31

56.6 50.6 35.6 29.6

76.1 × 3.2 CHS 76.1 × 2.3 CHS

5.75 4.19

0.239 0.239

41.6 57.1

23.8 33.1

733 533

0.488 0.363

12.8 9.55

17.0 12.5

25.8 26.1

0.976 0.727

25.6 19.1

60.3 × 2.9 CHS 60.3 × 2.3 CHS

4.11 3.29

0.189 0.189

46.1 57.6

20.8 26.2

523 419

0.216 0.177

7.16 5.85

9.56 7.74

20.3 20.5

0.432 0.353

14.3 11.7

48.3 × 2.9 CHS 48.3 × 2.3 CHS

3.25 2.61

0.152 0.152

46.7 58.2

16.7 21.0

414 332

0.107 0.088 1

4.43 3.65

5.99 4.87

16.1 16.3

0.214 0.176

8.86 7.30

42.4 × 2.6 CHS 42.4 × 2.0 CHS

2.55 1.99

0.133 0.133

52.2 66.8

16.3 21.2

325 254

0.064 6 0.051 9

3.05 2.45

4.12 3.27

14.1 14.3

0.129 0.104

6.10 4.90

33.7 × 2.6 CHS 33.7 × 2.0 CHS

1.99 1.56

0.106 0.106

53.1 67.7

13.0 16.9

254 199

0.030 9 0.025 1

1.84 1.49

2.52 2.01

11.0 11.2

0.061 9 0.050 2

3.67 2.98

26.9 × 2.3 CHS 26.9 × 2.0 CHS

1.40 1.23

0.084 5 0.084 5

60.6 68.8

11.7 13.5

178 156

0.013 6 0.012 2

1.01 0.907

1.40 1.24

8.74 8.83

0.027 1 0.024 4

2.02 1.81

21.3 × 2.0 CHS

0.952

0.066 9

70.3

10.7

121

0.005 71

0.536

0.748

6.86

0.011 4

1.07

114.3 114.3 114.3 114.3

× × × ×

88.9 × 88.9 × 88.9 × 88.9 ×

6.0 4.8 3.6 3.2

5.5 4.8 3.2 2.6


COPYRIGHT

AS 1163—1991

17

1

2

3


4

5



per unit mass

mm

2

kg/m

2

m /m

m /t

7


d o t

t

mm

6



l 2

9

10

11

12

Torsion constant

Torsion modulus

About any axis

A g mm

8

6

10 mm


Z 4

3

10 mm

Radius of gyration

S 3

3

10 mm

3

r

J

mm

10 mm

C

6

4

3

10 mm

3

219.1 × 8.2 CHS 219.1 × 6.4 CHS 219.1 × 4.8 CHS

42.6 33.6 25.4

0.688 0.688 0.688

16.1 20.5 27.1

26.7 34.2 45.6

5 430 4 280 3 230

30.3 24.2 18.6

276 221 169

365 290 220

74.6 75.2 75.8

60.5 48.4 37.1

552 442 339

168.3 × 7.1 CHS 168.3 × 6.4 CHS 168.3 × 4.8 CHS

28.2 25.6 19.4

0.529 0.529 0.529

18.7 20.7 27.3

23.7 26.3 35.1

3 600 3 260 2 470

11.7 10.7 8.25

139 127 98.0

185 168 128

57.0 57.3 57.8

23.4 21.4 16.5

278 254 196

165.1 × 3.5 CHS 165.1 × 3.0 CHS

13.9 12.0

0.519 0.519

37.2 43.2

47.2 55.0

1 780 1 530

5.80 5.02

70.3 60.8

91.4 78.8

57.1 57.3

11.6 10.0

141 122

139.7 × 3.5 CHS 139.7 × 3.0 CHS

11.8 10.1

0.439 0.439

37.3 43.4

39.9 46.6

1 500 1 290

3.47 3.01

49.7 43.1

64.9 56.1

48.2 48.3

6.95 6.02

99.5 86.2

CHS CHS CHS CHS

16.0 13.0 9.83 8.77

0.359 0.359 0.359 0.359

22.4 27.7 36.5 41.0

19.1 23.8 31.8 35.7

2 1 1 1

040 650 250 120

3.00 2.48 1.92 1.72

52.5 43.4 33.6 30.2

70.4 57.6 44.1 39.5

38.3 38.8 39.2 39.3

6.00 4.96 3.84 3.45

105 86.8 67.2 60.4

101.6 × 3.2 CHS 101.6 × 2.6 CHS

7.77 6.35

0.319 0.319

41.1 50.3

31.8 39.1

989 809

1.20 0.991

23.6 19.5

31.0 25.5

34.8 35.0

2.40 1.98

47.2 39.0

CHS CHS CHS CHS

11.3 9.96 6.76 5.53

0.279 0.279 0.279 0.279

24.7 28.1 41.3 50.5

16.2 18.5 27.8 34.2

1 440 1 270 862 705

1.26 1.12 0.792 0.657

28.3 25.3 17.8 14.8

38.3 34.0 23.5 19.4

29.6 29.8 30.3 30.5

2.52 2.25 1.58 1.31

56.6 50.6 35.6 29.6

76.1 × 3.2 CHS 76.1 × 2.3 CHS

5.75 4.19

0.239 0.239

41.6 57.1

23.8 33.1

733 533

0.488 0.363

12.8 9.55

17.0 12.5

25.8 26.1

0.976 0.727

25.6 19.1

60.3 × 2.9 CHS 60.3 × 2.3 CHS

4.11 3.29

0.189 0.189

46.1 57.6

20.8 26.2

523 419

0.216 0.177

7.16 5.85

9.56 7.74

20.3 20.5

0.432 0.353

14.3 11.7

48.3 × 2.9 CHS 48.3 × 2.3 CHS

3.25 2.61

0.152 0.152

46.7 58.2

16.7 21.0

414 332

0.107 0.088 1

4.43 3.65

5.99 4.87

16.1 16.3

0.214 0.176

8.86 7.30

42.4 × 2.6 CHS 42.4 × 2.0 CHS

2.55 1.99

0.133 0.133

52.2 66.8

16.3 21.2

325 254

0.064 6 0.051 9

3.05 2.45

4.12 3.27

14.1 14.3

0.129 0.104

6.10 4.90

33.7 × 2.6 CHS 33.7 × 2.0 CHS

1.99 1.56

0.106 0.106

53.1 67.7

13.0 16.9

254 199

0.030 9 0.025 1

1.84 1.49

2.52 2.01

11.0 11.2

0.061 9 0.050 2

3.67 2.98

26.9 × 2.3 CHS 26.9 × 2.0 CHS

1.40 1.23

0.084 5 0.084 5

60.6 68.8

11.7 13.5

178 156

0.013 6 0.012 2

1.01 0.907

1.40 1.24

8.74 8.83

0.027 1 0.024 4

2.02 1.81

21.3 × 2.0 CHS

0.952

0.066 9

70.3

10.7

121

0.005 71

0.536

0.748

6.86

0.011 4

1.07

114.3 114.3 114.3 114.3

× × × ×

88.9 × 88.9 × 88.9 × 88.9 ×

6.0 4.8 3.6 3.2

5.5 4.8 3.2 2.6


COPYRIGHT

AS 1163—1991

18

1

2

Designati on Depth

Width Thickness

3

4

per unit mass

kg/m

m2/m

m2/t

250 × 250 × 9.0 SHS 250 × 250 × 6.0 SHS

65.9 45.0

0.961 0.974

14.6 21.7

200 × 200 × 9.0 SHS 200 × 200 × 6.0 SHS 200 × 200 × 5.0 SHS

51.8 35.6 29.9

0.761 0.774 0.779

150 × 150 × 9.0 SHS 150 × 150 × 6.0 SHS 150 × 150 × 5.0 SHS

37.7 26.2 22.1

d

b mm

6

Ratio


8



9

10

11

12

13

Torsion constant

Torsion modulus

About x , y and n- axes Elastic section modulus


Radius of gyration

Ag

l x, l y

Z x, Z y

Z n

S x, S y

r x, r y

J

C

mm2

106 mm4

10 3 mm3

10 3 mm 3

103 mm3

mm

106 mm4

10 3 mm3

25.8 39.7

8 400 5 730

79.8 56.2

639 450

477 330

750 521

97.5 99.0

129 88.7

972 681

14.7 21.8 26.0

20.2 31.3 38.0

6 600 4 530 3 810

39.2 28.0 23.9

392 280 239

297 207 175

465 327 277

77.1 78.6 79.1

64.5 44.8 37.8

599 425 362

0.561 0.574 0.579

14.9 22.0 26.2

14.7 23.0 28.0

4 800 3 330 2 810

15.4 11.3 9.70

205 150 129

159 113 96.1

248 178 151

56.6 58.2 58.7

26.1 18.4 15.6

316 229 197 208 154 133 110

t mm

7


per unit length

mm

5

125 125 125 125

× × × ×

125 125 125 125

× × × ×

9.0 SHS 6.0 SHS 5.0 SHS 4.0 SHS

30.6 21.4 18.2 14.8

0.461 0.474 0.479 0.483

15.1 22.1 26.3 32.7

11.9 18.8 23.0 29.3

3 2 2 1

900 730 310 880

8.38 6.29 5.44 4.52

134 101 87.1 72.3

106 76.5 65.4 53.6

165 120 103 84.5

46.4 48.0 48.5 49.0

14.5 10.4 8.87 7.25

100 100 100 100 100

× × × × ×

100 100 100 100 100

× × × × ×

9.0 SHS 6.0 SHS 5.0 SHS 4.0 SHS 3.0 SHS

23.5 16.7 14.2 11.6 8.96

0.361 0.374 0.379 0.383 0.390

15.4 22.4 26.6 32.9 43.5

9.11 14.7 18.0 23.0 31.3

3 2 1 1 1

000 130 810 480 140

3.91 3.04 2.66 2.23 1.77

78.1 60.7 53.1 44.6 35.4

63.6 47.1 40.5 33.5 26.0

98.6 73.5 63.5 52.6 41.2

36.1 37.7 38.3 38.8 39.4

7.00 5.15 4.42 3.63 2.79

FIGURE C3 (in part) SQUARE HOLLOW SECTIONS OF GRADE C350 COPYRIGHT

123 93.6 81.4 68.0 53.2

AS 1163—1991

18

1

2

Designati on Depth

Width Thickness

d

b

mm

3

4

5

6

mm

8


per unit length

per unit mass

2

2

Ratio

Gross area of crosssection Ag

kg/m

m /m

m /t

250 × 250 × 9.0 SHS 250 × 250 × 6.0 SHS

65.9 45.0

0.961 0.974

14.6 21.7

200 × 200 × 9.0 SHS 200 × 200 × 6.0 SHS 200 × 200 × 5.0 SHS

51.8 35.6 29.9

0.761 0.774 0.779

150 × 150 × 9.0 SHS 150 × 150 × 6.0 SHS 150 × 150 × 5.0 SHS

37.7 26.2 22.1

9

10

11

12

13

Torsion constant

Torsion modulus

About x , y and n- axes

t

mm

7


2



l x, l y

Z x, Z y

6

4

3

10 mm

3



Radius of gyration

Z n

S x, S y

r x, r y

3

mm

10 mm

10 mm

25.8 39.7

8 400 5 730

79.8 56.2

639 450

477 330

14.7 21.8 26.0

20.2 31.3 38.0

6 600 4 530 3 810

39.2 28.0 23.9

392 280 239

0.561 0.574 0.579

14.9 22.0 26.2

14.7 23.0 28.0

4 800 3 330 2 810

15.4 11.3 9.70

3

3

10 mm

3

J 6

C 4

10 mm3

mm

10 mm

750 521

97.5 99.0

129 88.7

972 681

297 207 175

465 327 277

77.1 78.6 79.1

64.5 44.8 37.8

599 425 362

205 150 129

159 113 96.1

248 178 151

56.6 58.2 58.7

26.1 18.4 15.6

316 229 197 208 154 133 110

125 125 125 125

× × × ×

125 125 125 125

× × × ×

9.0 SHS 6.0 SHS 5.0 SHS 4.0 SHS

30.6 21.4 18.2 14.8

0.461 0.474 0.479 0.483

15.1 22.1 26.3 32.7

11.9 18.8 23.0 29.3

3 2 2 1

900 730 310 880

8.38 6.29 5.44 4.52

134 101 87.1 72.3

106 76.5 65.4 53.6

165 120 103 84.5

46.4 48.0 48.5 49.0

14.5 10.4 8.87 7.25

100 100 100 100 100

× × × × ×

100 100 100 100 100

× × × × ×

9.0 SHS 6.0 SHS 5.0 SHS 4.0 SHS 3.0 SHS

23.5 16.7 14.2 11.6 8.96

0.361 0.374 0.379 0.383 0.390

15.4 22.4 26.6 32.9 43.5

9.11 14.7 18.0 23.0 31.3

3 2 1 1 1

000 130 810 480 140

3.91 3.04 2.66 2.23 1.77

78.1 60.7 53.1 44.6 35.4

63.6 47.1 40.5 33.5 26.0

98.6 73.5 63.5 52.6 41.2

36.1 37.7 38.3 38.8 39.4

7.00 5.15 4.42 3.63 2.79

FIGURE C3 (in part) SQUARE HOLLOW SECTIONS OF GRADE C350 COPYRIGHT

3

123 93.6 81.4 68.0 53.2

AS 1163—1991

1 Designati on

20

2

3 4 External surface area

Mass per unit Depth W id th Thi ckness length per unit per unit length mass d b t mm mm mm kg/m m2/m m2/t 250 × 150 × 9.0 RHS 51.8 0.761 14.7 250 × 150 × 6.0 RHS 35.6 0.774 21.8 250 × 150 × 5.0 RHS 29.9 0.779 26.0 200 × 100 × 9.0 RHS 37.7 0.561 14.9 200 × 100 × 6.0 RHS 26.2 0.574 22.0 200 × 100 × 5.0 RHS 22.1 0.579 26.2 200 × 100 × 4.0 RHS 17.9 0.583 32.5 150 × 100 × 6.0 RHS 21.4 0.474 22.1 150 × 100 × 5.0 RHS 18.2 0.479 26.3 150 × 100 × 4.0 RHS 14.8 0.483 32.7 150 × 50 × 5.0 RHS 14.2 0.379 26.6 150 × 50 × 4.0 RHS 11.6 0.383 32.9 150 × 50 × 3.0 RHS 8.96 0.390 43.5 125 × 75 × 5.0 RHS 14.2 0.379 26.6 125 × 75 × 4.0 RHS 11.6 0.383 32.9 125 × 75 × 3.0 RHS 8.96 0.390 43.5

5

6 Ratio

14.7 23.0 28.0 9.11 14.7 18.0 23.0 14.7 18.0 23.0 8.00 10.5 14.7 13.0 16.8 23.0

7

8

9 10 About x- axis

11

12

13 14 About y- axis

15

16

17

Gross Torsion Torsion area of Plastic Radius Second Elastic Plastic Radius constant modulus cross- Second Elastic section of moment section section of section moment section of area modulus modulus gyration of area modulus modulus gyration

25.8 39.7 48.0 20.2 31.3 38.0 48.0 23.0 28.0 35.5 28.0 35.5 48.0 23.0 29.3 39.7

Ag mm2 6 600 4 530 3 810 4 800 3 330 2 810 2 280 2 730 2 310 1 880 1 810 1 480 1 140 1 810 1 480 1 140

l x Z x 10 6 mm4 10 3 mm3 53.7 430 38.4 307 32.7 262 22.8 228 16.7 167 14.4 144 11.9 119 8.17 109 7.07 94.3 5.87 78.2 4.44 59.2 3.74 49.8 2.99 39.8 3.64 58.3 3.05 48.9 2.43 38.9

S x 10 3 mm3 533 374 317 293 210 179 147 134 115 94.6 78.9 65.4 51.4 72.7 60.3 47.3

r x mm 90.2 92.0 92.6 68.9 70.8 71.5 72.1 54.7 55.3 55.9 49.5 50.2 51.2 44.8 45.4 46.1

l y Z y 10 6 mm4 103 mm4 24.3 324 17.5 233 15.0 199 7.64 153 5.69 114 4.92 98.3 4.07 81.5 4.36 87.3 3.79 75.7 3.15 63.0 0.765 30.6 0.653 26.1 0.526 21.1 1.65 43.9 1.39 37.0 1.11 29.5

FIGURE C4 (in part) RECTANGULAR HOLLOW SECTIONS OF GRADE C350

COPYRIGHT

S y 103 mm3 375 264 224 180 130 111 91.0 102 87.3 71.8 35.7 29.8 23.5 51.1 42.4 33.3

r y mm 60.7 62.2 62.6 39.9 41.3 41.8 42.3 40.0 40.4 40.9 20.5 21.0 21.5 30.1 30.6 31.1

J 106 mm4 56.0 39.0 33.0 19.9 14.2 12.1 9.89 9.51 8.12 6.64 2.30 1.93 1.50 3.83 3.16 2.43

C 10 3 mm 3 554 395 337 272 200 172 142 147 127 105 56.8 48.2 38.3 75.3 63.0 49.5

AS 1163—1991

1 Designati on

20

2


Mass per unit Depth W id th Thi ckness length per unit per unit length mass d b t mm mm mm kg/m m2/m m2/t 250 × 150 × 9.0 RHS 51.8 0.761 14.7 250 × 150 × 6.0 RHS 35.6 0.774 21.8 250 × 150 × 5.0 RHS 29.9 0.779 26.0 200 × 100 × 9.0 RHS 37.7 0.561 14.9 200 × 100 × 6.0 RHS 26.2 0.574 22.0 200 × 100 × 5.0 RHS 22.1 0.579 26.2 200 × 100 × 4.0 RHS 17.9 0.583 32.5 150 × 100 × 6.0 RHS 21.4 0.474 22.1 150 × 100 × 5.0 RHS 18.2 0.479 26.3 150 × 100 × 4.0 RHS 14.8 0.483 32.7 150 × 50 × 5.0 RHS 14.2 0.379 26.6 150 × 50 × 4.0 RHS 11.6 0.383 32.9 150 × 50 × 3.0 RHS 8.96 0.390 43.5 125 × 75 × 5.0 RHS 14.2 0.379 26.6 125 × 75 × 4.0 RHS 11.6 0.383 32.9 125 × 75 × 3.0 RHS 8.96 0.390 43.5

5

6 Ratio

14.7 23.0 28.0 9.11 14.7 18.0 23.0 14.7 18.0 23.0 8.00 10.5 14.7 13.0 16.8 23.0

7

8

9 10 About x- axis

11

12

13 14 About y- axis

15

16

17

Gross Torsion Torsion area of Plastic Radius Second Elastic Plastic Radius constant modulus cross- Second Elastic moment section section of moment section section of section of area modulus modulus gyration of area modulus modulus gyration

25.8 39.7 48.0 20.2 31.3 38.0 48.0 23.0 28.0 35.5 28.0 35.5 48.0 23.0 29.3 39.7

Ag mm2 6 600 4 530 3 810 4 800 3 330 2 810 2 280 2 730 2 310 1 880 1 810 1 480 1 140 1 810 1 480 1 140

l x Z x 10 6 mm4 10 3 mm3 53.7 430 38.4 307 32.7 262 22.8 228 16.7 167 14.4 144 11.9 119 8.17 109 7.07 94.3 5.87 78.2 4.44 59.2 3.74 49.8 2.99 39.8 3.64 58.3 3.05 48.9 2.43 38.9

S x 10 3 mm3 533 374 317 293 210 179 147 134 115 94.6 78.9 65.4 51.4 72.7 60.3 47.3

r x mm 90.2 92.0 92.6 68.9 70.8 71.5 72.1 54.7 55.3 55.9 49.5 50.2 51.2 44.8 45.4 46.1

l y Z y 10 6 mm4 103 mm4 24.3 324 17.5 233 15.0 199 7.64 153 5.69 114 4.92 98.3 4.07 81.5 4.36 87.3 3.79 75.7 3.15 63.0 0.765 30.6 0.653 26.1 0.526 21.1 1.65 43.9 1.39 37.0 1.11 29.5

FIGURE C4 (in part) RECTANGULAR HOLLOW SECTIONS OF GRADE C350

COPYRIGHT

S y 103 mm3 375 264 224 180 130 111 91.0 102 87.3 71.8 35.7 29.8 23.5 51.1 42.4 33.3

r y mm 60.7 62.2 62.6 39.9 41.3 41.8 42.3 40.0 40.4 40.9 20.5 21.0 21.5 30.1 30.6 31.1

J 106 mm4 56.0 39.0 33.0 19.9 14.2 12.1 9.89 9.51 8.12 6.64 2.30 1.93 1.50 3.83 3.16 2.43

C 10 3 mm 3 554 395 337 272 200 172 142 147 127 105 56.8 48.2 38.3 75.3 63.0 49.5

AS 1163—1991

1 Designation

22

2

3 4 External surf ace area

Mass Depth Width Thickness per unit length per unit length d b t mm mm mm kg/m m2/m 100 × 100 × 3.8 SHS 11.1 0.384 100 × 100 × 3.3 SHS 9.73 0.386 100 × 100 × 2.8 SHS 8.39 0.390 75 × 75 × 3.3 SHS 7.14 0.286 75 × 75 × 2.8 SHS 6.19 0.290 75 × 75 × 2.3 SHS 5.14 0.292 65 × 65 × 2.3 SHS 4.42 0.252 50 × 50 × 2.8 SHS 3.99 0.190 50 × 50 × 2.3 SHS 3.34 0.192 35 × 35 × 2.8 SHS 2.67 0.130 35 × 35 × 2.3 SHS 2.25 0.132 25 × 25 × 2.3 SHS 1.53 0.092 1

5

6

7

Ratio

24.3 28.3 33.7 20.7 24.8 30.6 26.3 15.9 19.7 10.5 13.2 8.87

9 10 11 About x- and n- axes

12

24.3 28.3 33.7 20.7 24.8 30.6 26.3 15.9 19.7 10.5 13.2 8.87

Ag mm2 1 410 1 240 1 070 909 788 655 563 508 425 340 287 195

l x Z x Z n S x 106 mm4 103 mm3 103 mm3 10 3 mm3 2.14 42.7 32.0 50.3 1.90 38.0 28.2 44.5 1.67 33.3 24.4 38.7 0.761 20.3 15.3 24.1 0.676 18.0 13.3 21.2 0.571 15.2 11.2 17.7 0.364 11.2 8.27 13.1 0.185 7.40 5.60 8.87 0.159 6.34 4.74 7.52 0.057 0 3.26 2.54 4.02 0.049 9 2.85 2.19 3.46 0.016 1 1.29 1.02 1.62

r x mm 38.9 39.2 39.5 28.9 29.3 29.5 25.4 19.1 19.3 12.9 13.2 9.09

NOTE: The calculation of sectional properties is based on the following corner geometry: Size range

Thicknesses 3.0 mm and less Thicknesses greater than 3.0 mm

13

14 15 About y- axis

16

17

18

Gross Plastic Radius Torsion Torsion area of Second Elastic Elastic Plastic Radius Second Elastic constant modulus cross- moment section section section of moment section section of section of area modulus modulus modulus gyration of area modulus modulus gyration

per unit mass m2/t 34.6 39.7 46.5 40.1 46.9 56.8 57.0 47.7 57.6 48.8 58.6 60.1

8

Inside corner radii mm

Outside corner radii mm

1.0t 1.5t

2.0t 2.5t

FIGURE C5 SQUARE HOLLOW SECTIONS OF GRADE C450 COPYRIGHT

l y Z y 106 mm4 103 mm3 2.14 42.7 1.90 38.0 1.67 33.3 0.761 20.3 0.676 18.0 0.571 15.2 0.364 11.2 0.185 7.40 0.159 6.34 0.057 0 3.26 0.049 9 2.85 0.016 1 1.29

S y 103 mm3 50.3 44.5 38.7 24.1 21.2 17.7 13.1 8.87 7.52 4.02 3.46 1.62

r y mm 38.9 39.2 39.5 28.9 29.3 29.5 25.4 19.1 19.3 12.9 13.2 9.09

J C 106 mm4 103 mm3 3.47 65.1 3.05 57.7 2.61 50.0 1.25 31.0 1.08 27.1 0.900 22.9 0.579 16.9 0.303 11.2 0.256 9.55 0.097 0 4.95 0.083 1 4.32 0.028 0 1.97

AS 1163—1991

1 Designation

22

2

3 4 External surf ace area

Mass Depth Width Thickness per unit length per unit length d b t mm mm mm kg/m m2/m 100 × 100 × 3.8 SHS 11.1 0.384 100 × 100 × 3.3 SHS 9.73 0.386 100 × 100 × 2.8 SHS 8.39 0.390 75 × 75 × 3.3 SHS 7.14 0.286 75 × 75 × 2.8 SHS 6.19 0.290 75 × 75 × 2.3 SHS 5.14 0.292 65 × 65 × 2.3 SHS 4.42 0.252 50 × 50 × 2.8 SHS 3.99 0.190 50 × 50 × 2.3 SHS 3.34 0.192 35 × 35 × 2.8 SHS 2.67 0.130 35 × 35 × 2.3 SHS 2.25 0.132 25 × 25 × 2.3 SHS 1.53 0.092 1

5

6

7

Ratio

24.3 28.3 33.7 20.7 24.8 30.6 26.3 15.9 19.7 10.5 13.2 8.87


12

13

14 15 About y- axis

16

17

18

Gross Plastic Radius Torsion Torsion area of Second Elastic Elastic Plastic Radius Second Elastic constant modulus cross- moment section section section of moment section section of section of area modulus modulus modulus gyration of area modulus modulus gyration

per unit mass m2/t 34.6 39.7 46.5 40.1 46.9 56.8 57.0 47.7 57.6 48.8 58.6 60.1

8

24.3 28.3 33.7 20.7 24.8 30.6 26.3 15.9 19.7 10.5 13.2 8.87

Ag mm2 1 410 1 240 1 070 909 788 655 563 508 425 340 287 195

l x Z x Z n S x 106 mm4 103 mm3 103 mm3 10 3 mm3 2.14 42.7 32.0 50.3 1.90 38.0 28.2 44.5 1.67 33.3 24.4 38.7 0.761 20.3 15.3 24.1 0.676 18.0 13.3 21.2 0.571 15.2 11.2 17.7 0.364 11.2 8.27 13.1 0.185 7.40 5.60 8.87 0.159 6.34 4.74 7.52 0.057 0 3.26 2.54 4.02 0.049 9 2.85 2.19 3.46 0.016 1 1.29 1.02 1.62

r x mm 38.9 39.2 39.5 28.9 29.3 29.5 25.4 19.1 19.3 12.9 13.2 9.09

l y Z y 106 mm4 103 mm3 2.14 42.7 1.90 38.0 1.67 33.3 0.761 20.3 0.676 18.0 0.571 15.2 0.364 11.2 0.185 7.40 0.159 6.34 0.057 0 3.26 0.049 9 2.85 0.016 1 1.29

S y 103 mm3 50.3 44.5 38.7 24.1 21.2 17.7 13.1 8.87 7.52 4.02 3.46 1.62

r y mm 38.9 39.2 39.5 28.9 29.3 29.5 25.4 19.1 19.3 12.9 13.2 9.09

J C 106 mm4 103 mm3 3.47 65.1 3.05 57.7 2.61 50.0 1.25 31.0 1.08 27.1 0.900 22.9 0.579 16.9 0.303 11.2 0.256 9.55 0.097 0 4.95 0.083 1 4.32 0.028 0 1.97

NOTE: The calculation of sectional properties is based on the following corner geometry: Size range



1.0t 1.5t

2.0t 2.5t

Thicknesses 3.0 mm and less Thicknesses greater than 3.0 mm

FIGURE C5 SQUARE HOLLOW SECTIONS OF GRADE C450 COPYRIGHT

AS 1163—1991

23

1 Designation

2


Mass Depth Width Thickness per unit length per unit length d b t mm mm mm kg/m m2/m 125 × 75 × 3.8 RHS 11.1 0.384 125 × 75 × 3.3 RHS 9.73 0.386 125 × 75 × 2.8 RHS 8.39 0.390 100 × 50 × 3.3 RHS 7.14 0.286 100 × 50 × 2.8 RHS 6.19 0.290 100 × 50 × 2.3 RHS 5.14 0.292 75 × 50 × 2.8 RHS 5.09 0.240 75 × 50 × 2.3 RHS 4.24 0.242 65 × 35 × 2.8 RHS 3.99 0.190 65 × 35 × 2.3 RHS 3.34 0.192 50 × 25 × 2.8 RHS 2.89 0.140 50 × 25 × 2.3 RHS 2.44 0.142 50 × 20 × 2.8 RHS 2.67 0.130 50 × 20 × 2.3 RHS 2.25 0.132

5

6 Ratio

per unit mass m2/t 34.6 39.7 46.5 40.1 46.9 56.8 47.2 57.1 47.7 57.6 48.5 58.4 48.8 58.6

17.7 20.7 24.8 13.2 15.9 19.7 15.9 19.7 10.5 13.2 6.93 8.87 5.14 6.70

30.9 35.9 42.6 28.3 33.7 41.5 24.8 30.6 21.2 26.3 15.9 19.7 15.9 19.7

7 8 9 10 11 12 13 14 15 16 17 18 About x- and n- axes About y- axis Gross Plastic Radius Torsion Torsion area of Second Elastic Elastic Plastic Radius Second Elastic constant modulus cross- moment section section section of moment section section of section of area modulus modulus modulus gyration of area modulus modulus gyration Ag mm2 1 410 1 240 1 070 909 788 655 648 540 508 425 368 310 340 287

l x Z x Z n S x 106 mm4 103 mm3 103 mm3 103 mm3 2.93 46.8 — 57.7 — 2.60 41.6 50.9 — 2.29 36.6 44.4 1.13 22.6 — 28.5 — 1.00 20.1 25.1 — 0.848 17.0 21.0 0.493 13.2 — 16.1 — 0.419 11.2 13.6 0.267 8.21 — 10.4 — 0.229 7.04 8.81 0.107 4.27 — 5.57 — 0.093 1 3.72 4.78 0.091 2 3.65 — 4.91 — 0.080 0 3.20 4.23

r x mm 45.5 45.8 46.2 35.2 35.7 36.0 27.6 27.9 22.9 23.2 17.0 17.3 16.4 16.7

l y Z y 106 mm4 103 mm3 1.33 35.5 1.19 31.6 1.04 27.8 0.383 15.3 0.341 13.6 0.290 11.6 0.263 10.5 0.224 8.96 0.101 5.75 0.086 9 4.96 0.035 2 2.82 0.031 0 2.48 0.020 5 2.05 0.018 3 1.83

NOTE: The calculation of sectional properties is based on the following corner geometry: Size range Thicknesses 3.0 mm and less Thicknesses greater than 3.0 mm



1.0t 1.5t

2.0t 2.5t

FIGURE C6 RECTANGULAR HOLLOW SECTIONS OF GRADE C450 COPYRIGHT

S y 103 mm3 40.6 35.9 31.3 17.6 15.5 13.0 12.2 10.3 6.73 5.72 3.39 2.92 2.51 2.18

r y mm 30.7 30.9 31.2 20.5 20.8 21.0 20.1 20.4 14.1 14.3 9.78 10.0 7.76 7.98

J C 106 mm4 103 mm3 3.02 60.4 2.66 53.6 2.28 46.6 0.964 26.9 0.834 23.6 0.699 20.0 0.558 17.4 0.469 14.8 0.245 9.92 0.208 8.53 0.091 7 4.96 0.079 0 4.34 0.059 4 3.73 0.051 8 3.31

AS 1163—1991

23

1 Designation

2


Mass Depth Width Thickness per unit length per unit length d b t mm mm mm kg/m m2/m 125 × 75 × 3.8 RHS 11.1 0.384 125 × 75 × 3.3 RHS 9.73 0.386 125 × 75 × 2.8 RHS 8.39 0.390 100 × 50 × 3.3 RHS 7.14 0.286 100 × 50 × 2.8 RHS 6.19 0.290 100 × 50 × 2.3 RHS 5.14 0.292 75 × 50 × 2.8 RHS 5.09 0.240 75 × 50 × 2.3 RHS 4.24 0.242 65 × 35 × 2.8 RHS 3.99 0.190 65 × 35 × 2.3 RHS 3.34 0.192 50 × 25 × 2.8 RHS 2.89 0.140 50 × 25 × 2.3 RHS 2.44 0.142 50 × 20 × 2.8 RHS 2.67 0.130 50 × 20 × 2.3 RHS 2.25 0.132

5

6 Ratio

per unit mass m2/t 34.6 39.7 46.5 40.1 46.9 56.8 47.2 57.1 47.7 57.6 48.5 58.4 48.8 58.6

17.7 20.7 24.8 13.2 15.9 19.7 15.9 19.7 10.5 13.2 6.93 8.87 5.14 6.70

30.9 35.9 42.6 28.3 33.7 41.5 24.8 30.6 21.2 26.3 15.9 19.7 15.9 19.7

7

8


12

13

14 15 About y- axis

16

17

18

Gross Plastic Radius Torsion Torsion area of Second Elastic Elastic Plastic Radius Second Elastic constant modulus cross- moment section section section of moment section section of section of area modulus modulus modulus gyration of area modulus modulus gyration Ag mm2 1 410 1 240 1 070 909 788 655 648 540 508 425 368 310 340 287

l x Z x Z n S x 106 mm4 103 mm3 103 mm3 103 mm3 2.93 46.8 — 57.7 — 2.60 41.6 50.9 — 2.29 36.6 44.4 1.13 22.6 — 28.5 — 1.00 20.1 25.1 — 0.848 17.0 21.0 0.493 13.2 — 16.1 — 0.419 11.2 13.6 0.267 8.21 — 10.4 — 0.229 7.04 8.81 0.107 4.27 — 5.57 — 0.093 1 3.72 4.78 0.091 2 3.65 — 4.91 — 0.080 0 3.20 4.23

r x mm 45.5 45.8 46.2 35.2 35.7 36.0 27.6 27.9 22.9 23.2 17.0 17.3 16.4 16.7

l y Z y 106 mm4 103 mm3 1.33 35.5 1.19 31.6 1.04 27.8 0.383 15.3 0.341 13.6 0.290 11.6 0.263 10.5 0.224 8.96 0.101 5.75 0.086 9 4.96 0.035 2 2.82 0.031 0 2.48 0.020 5 2.05 0.018 3 1.83

S y 103 mm3 40.6 35.9 31.3 17.6 15.5 13.0 12.2 10.3 6.73 5.72 3.39 2.92 2.51 2.18

r y mm 30.7 30.9 31.2 20.5 20.8 21.0 20.1 20.4 14.1 14.3 9.78 10.0 7.76 7.98

J C 106 mm4 103 mm3 3.02 60.4 2.66 53.6 2.28 46.6 0.964 26.9 0.834 23.6 0.699 20.0 0.558 17.4 0.469 14.8 0.245 9.92 0.208 8.53 0.091 7 4.96 0.079 0 4.34 0.059 4 3.73 0.051 8 3.31

NOTE: The calculation of sectional properties is based on the following corner geometry: Size range Thicknesses 3.0 mm and less Thicknesses greater than 3.0 mm



1.0t 1.5t

2.0t 2.5t

FIGURE C6 RECTANGULAR HOLLOW SECTIONS OF GRADE C450 COPYRIGHT

AS 1163—1991

24

APPENDIX D

METHOD FOR VERIFYING GRADE L0 COMPLIANCE OF THIN WALL SECTIONS (Informative) D1 SCOPE This Appendix sets out the method for verifying the compliance of t hin wall sections with t he requirements of grade L0 where t he wall thickness precludes standard subsize C harpy V-Notch (CVN) impact specimens. D2 METHOD Where it is impracticable to obtain a standard subsize specimen, i.e. 10 × 10, 10 × 7.5, 10 × 5.0, 10 × 2.5 mm from a hollow section, that section is considered to comply with the requirements of grade L0 if other hollow sections are available and meet the following criteria: (a) The steel used is of the same nominal chemistry, manufactured by the same steelmaking and strip processing procedures, and supplied by the same steel manufacturer. (b) The wall thickness is greater than the section being assessed. (c) The thickness to perimeter ratio is equal to or greater than the section being assessed. D3 BACKGROUND This Standard recognizes the f ollowing principles: (a) The preferred l ower size limit for CVN impact tests is 10 × 2.5 mm substandard specimens. This limit is recognized in AS 1210. (b) Susceptibility to brittle fracture is directly proportional to the wall thickness of the section being considered. It is generally recognized that brittle fractures do not occur in material less than 3.0 mm thick. (c) The manufacturing factors that affect CVN impact values are as follows: (i)

Steel chemistry, e.g. carbon content and carbon equivalent.

(ii)

Steel microstructure, e.g. grain size and steel cleanliness.

(iii) Cold strain experienced during the manufacture of the hollow section. The level of cold strain is proportional to the thickness to perimeter ratio.

AS 1163—1991

24

APPENDIX D

METHOD FOR VERIFYING GRADE L0 COMPLIANCE OF THIN WALL SECTIONS (Informative) D1 SCOPE This Appendix sets out the method for verifying the compliance of t hin wall sections with t he requirements of grade L0 where t he wall thickness precludes standard subsize C harpy V-Notch (CVN) impact specimens. D2 METHOD Where it is impracticable to obtain a standard subsize specimen, i.e. 10 × 10, 10 × 7.5, 10 × 5.0, 10 × 2.5 mm from a hollow section, that section is considered to comply with the requirements of grade L0 if other hollow sections are available and meet the following criteria: (a) The steel used is of the same nominal chemistry, manufactured by the same steelmaking and strip processing procedures, and supplied by the same steel manufacturer. (b) The wall thickness is greater than the section being assessed. (c) The thickness to perimeter ratio is equal to or greater than the section being assessed. D3 BACKGROUND This Standard recognizes the f ollowing principles: (a) The preferred l ower size limit for CVN impact tests is 10 × 2.5 mm substandard specimens. This limit is recognized in AS 1210. (b) Susceptibility to brittle fracture is directly proportional to the wall thickness of the section being considered. It is generally recognized that brittle fractures do not occur in material less than 3.0 mm thick. (c) The manufacturing factors that affect CVN impact values are as follows: (i)

Steel chemistry, e.g. carbon content and carbon equivalent.

(ii)

Steel microstructure, e.g. grain size and steel cleanliness.

(iii) Cold strain experienced during the manufacture of the hollow section. The level of cold strain is proportional to the thickness to perimeter ratio.

COPYRIGHT

As 1163 - Hollow Sections for Structural Steel

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