AD_2000_W2_2008

AD 2000-Merkblatt ICS 23.020.30

February 2008 edition

Austenitic and austenitic-ferritic steels

Materials for pressure vessels

AD 2000-Merkblatt

W2

The AD 2000-Merkblätter are prepared by the seven associations listed below who together form the “Arbeitsgemeinschaft Druckbehälter” Druckbehälter” (AD). The structure and the application of the AD 2000 Code and the procedural guidelines are covered by AD 2000-Merkblatt G 1. The AD 2000-Merkblätter contain safety requirements to be met under normal operating conditions. If above-normal loadings are to be expected during the operation of the pressure vessel, this shall be taken into account by m eeting special requirements. If there are any divergences from the requirements of this AD 2000-Merkblatt, it shall be possible to prove that the standard of safety of this Code has been maintained by other means, e.g. by materials testing, tests, stress analysis, operating experience. Fachverband Dampfkessel-, Behälter- und Rohrleitungsbau e.V. (FDBR), Düsseldorf Deutsche Gesetzliche Unfallversicherung (DGUV), Berlin Verband der Chemischen Industrie e.V. (VCI), Frankfurt/Main Verband Deutscher Maschinen- und Anlagenbau e.V. (VDMA), Fachgemeinschaft Verfahrenstechnische Maschinen und Apparate, Frankfurt/Main Stahlinstitut VDEh, Düsseldorf VGB PowerTech e.V., Essen Verband der TÜV e.V. (VdTÜV), Berlin The above associations continuously update the AD 2000-Merkblätter in line with technical progress. Please address any proposals for this to the publisher:

Verband der TÜV e.V., Friedrichstraße 136, 10117 Berlin. ____________ Contents

0 1 2 3

Foreword Scope Materials Mate Ma teri rial al requ requir irem emen ents ts

0 Foreword The AD 2000 Code can be applied to satisfy the basic safety requirements of the Pressure Equipment Directive, principally for the conformity assessment according to modules “G” and “B + F”. The AD 2000 Code is structured along the lines of a selfcontained concept. If other technical rules are used according to the state of the art to solve related problems, it is assumed that the overall concept has been taken into account. The AD 2000 Code can be used as appropriate for other modules of the Pressure Equipment Directive or for different sectors of the law. Responsibility for testing is as specified in the provisions of the relevant sector of the law. law. 1

Scope 1.1 This AD 2000-Merkblatt applies to hot- and cold-rolled plate, sheet and strip, seamless and welded tubes, forged, rolled and drawn bars and forgings, and bolts and nuts (mechanical fasteners) made of austenitic and austeniticferritic steels for the construction of pressure vessels

4 5 6 7

Tests Marking Verifi Verificat cation ion of of qualit qualityy charac character terist istics ics Desi Design gn char charac acte teri rist stic icss

operated at working temperatures and ambient temperatures down down to –10 °C and up to the upper upper temperature limits specified in clause 2. In principle, the steels are also suitable for use at temperatures temperatures lower than than –10 °C. For working temperatures temperatures below –10 °C, AD 2000-Merkblatt W 10 is also applicable. applicable. 1.2 The basic requirements for the materials and material manufacturer manufacturer are are specified specified in AD 2000-Merkbla 2000-Merkblatt tt W 0.

2

Materials

The following materials may be used for the construction of pressure vessels: 2.1 The austenitic steels and austenitic-ferritic steels listed in Tables 1a to 1c up to the limit temperatures (see Table 7) specified regarding resistance to intergranular corrosion and dimensional limits.

For materials not included in Table 7, see Note 2 of 8.3.3 of DIN EN 10028-7. 10028-7. For hot- and cold-formed cold-formed pressure pressure vessel vessel elements, elements, see AD AD 2000-Merkbl 2000-Merkblatt att HP 7/3.

Supersedes July 2006 edition; completely revised AD 2000-Merkblätter are protected by copyright. The rights of use, particularly of any translation, reproduction, extract of figures, transmission by photomechanical means and storage in data retrieval systems, even of extracts, are reserved to the author. Beuth Verlag has taken all reasonable measures to ensure the accuracy of this translation but regrets that no responsibility can be accepted for any error, omission or inaccuracy. In cases of doubt or dispute, the latest edition of the German text only is valid. TÜV Rheinland Group / Einzellizenz - Bezug über die Beuth Verlag GmbH

AD 2000-Merkblatt Page 2 AD 2000-Merkblatt W 2, 02.2008 edition

If bolts and nuts made of austenitic steels as specified in DIN EN 10269 are required to have resistance to intergranular corrosion, the application temperature shall not exceed 300 °C. Bars and forgings made of austenitic or austenitc-ferritic steels as specified in DIN EN 10222-5 and DIN EN 10272 may be used with the applicable cross-sectional area given in these standards up to a maximum of 250 mm for bars and 350 mm for forgings. The austentic steels of the relevant standards and material sheets listed in Table 1 above the limit temperatures given in these standards. In this case, consideration shall be given, as appropriate, to long-term elevated temperature values if no intergranular corrosion can occur and their suitability1) for the specified application temperature has been verified. This also applies to the filler metal of welded tubes. 2.2

Bolts and nuts of steel groups A 2, A 3, A 4 and A 5, of strength class 50 in sizes M 6 to M 39, of strength class 70 in sizes M 6 to M 30 as specified in DIN EN ISO 3506-1 and DIN EN ISO 3506-2, made of the austenitic steel grades listed there as long as the bolts and nuts manufactured by hot forming and cold forming contain no more than 0,4 % and 0,8 % copper respectively up to design temperatures of 400 °C. 2.3

If steel bars are used for manufacturing bolts and nuts in a heat treatment condition other than that given in Table A-2 or A-3 of DIN EN 10272 or Table B.1 of DIN EN 10269, e.g. warm work-hardened, proof of suitability shall be provided. Bolts and nuts of steels of groups A.2, A.3, A.4 and A.5 manufactured by hot forming and containing more than 0,4 % copper, or by cold forming and containing more than 0,8 % copper, but a maximum of 3,5 %, may be used if the quality characteristics are proven in the first instance by a report from the relevant third party. For percentages by mass of copper greater than 1 %, the copper content shall be stated in the inspection certificate. 2.4

Cold re-drawn bars made of steels with material numbers 1.4301, 1.4541, 1.4401 and 1.4571 of diameters ! 4 to " 35 mm. As a deviation from DIN EN 10272, an upper tensile strength of 850 MPa and an elongation after fracture A of ! 20 % are allowed. 2.5

The austenitic steels listed in Table 1 in a delivery state other than quenched, e.g. warm work-hardened, or if the dimensional limits given in the standards and Werkstoffblätter in Table 1 are exceeded, where verification of their suitability1) is provided. 2.6

Austenitic or austenitic/ferritic steels covered by other specifications if verification of their suitability1) is provided. 2.7

3

Material requirements 3.1 The following standards are applicable to the chemical composition, the heat treatment condition, the mechanical and technological properties as a function of the dimensional limits, the surface quality and the dimensional accuracy of the products2) listed in 2.1 to 2.4: 1)

Verification of suitability according to AD 2000-Merkblatt W 0. If the verification of suitability has led to a VdTÜV-Werkstoffblatt, see the Index of VdTÜV-Werkstoffblätter (available via www.vdtuev.de or from the TÜV Media GmbH, Am Grauen Stein, D-51105 Cologne).

DIN EN 10028-7 Flat products made of steels for pressure purposes – Part 7: Stainless steels DIN EN 10222-5 Steel forgings for pressure purposes – Part 5: Martensitic, austenitic and austenitic-ferritic stainless steels DIN EN 10272 Stainless steel bars for pressure purposes DIN EN 10216-5 Seamless steel tubes for pressure purposes – Technical delivery conditions – Part 5: Stainless steel tubes DIN EN 10217-7 Welded steel tubes for pressure purposes – Technical delivery conditions – Part 7: Stainless steel tubes Stahl-Eisen Werkstoffblatt 400 Stainless rolled and forged steels DIN EN 10269 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties DIN EN ISO 3506-1 Mechanical properties of corrosion-resistant stainless steel fasteners – Part 1: Bolts, screws and studs DIN EN ISO 3506-2 Mechanical properties of corrosion-resistant stainless steel fasteners – Part 2: Nuts For pressure vessels where the final test is carried out by the relevant third party, the requirements for the steels specified in 2.2, 2.4, 2.6 and 2.7 are based on the verification of suitability1). 3.2

For tubes welded by the manufacturer, see the specific requirements of clause 3, Annex 1 of the Pressure Equipment Directive. For welded tubes3), the procedures and personnel for manufacture and testing by the relevant third party shall be confirmed. An approval procedure (e.g. according to VdTÜV-Merkblatt 1151 Part 2) aligned with the manufacturing method shall exist that also contains the type and scope of the non-destructive testing. 3.4 Welded tubes specified in this AD 2000-Merkblatt shall be designed so that 100 % exploitation of the allowable design stress is allowed in the weld (weld factor 1). For welded tubes not complying with DIN EN 10217-7, the scope of testing of the weld zone shall be specified in such a way in the documentation for the approval procedure that it allows 100 % exploitation of the allowable design stress. The need for and the type of heat treatment shall also be specified. 3.5 For bars and forgings made of steels specified in DIN EN 10222-5 and DIN EN 10272 with a relevant dimension greater than that specified in these standards, the requirements of the September 1996 edition of DIN 17440 are applicable. 3.3

2) 3)

See DIN EN 10028-1. Welded tubes are those manufactured by qualified, mechanized welding procedures in continuous production from strip or in series production (as a single length) from lengths of strip. If not specified in the order, the manufacturer specifies the welding procedure. This also applies for the welding procedure not indicated in DIN EN 10217-7 (e.g. electron beam welding). Tubes or nozzles manufactured individually do not come within this definition. The HP series of the AD 2000-Merkblätter are applicable to them.

TÜV Rheinland Group / Einzellizenz - Bezug über die Beuth Verlag GmbH

AD 2000-Merkblatt AD 2000-Merkblatt W 2, 02.2008 edition Page 3

4 Tests Unless otherwise specified in the following, the individual products shall be tested according to DIN EN 10028-7, DIN EN 10222-1, DIN EN 10269, DIN EN 10272, DIN EN 10216-5 or DIN EN 10217-7. This also applies to the non-destructive tests and their evaluation/acceptability categories. Steels conforming to SEW 400 are tested according to the above standards depending on the product form. Steels complying with other material specifications are governed by the stipulations of the suitability verification1). 4.1

Additional tests for plate, sheet and strip

4.1.1

Tensile test

– for austenitic-ferritic steels listed in Table 1 on the base metal for thicknesses > 12 mm. When used according to AD 2000-Merkblatt W 10 for temperatures of less than –10 °C, the test is carried out at –40 °C (the test shall be carried out according to DIN EN 10217-7, option 12). 4.2.1.3

Resistance to intergranular corrosion

For austenitic and austenitic-ferritic steels belonging to the stainless steels group, the intergranular corrosion test is carried out on each cast and heat treatment batch. If agreed with the user, this test may be dispensed with (the test shall be carried out according to DIN EN 10217-7, option 13). 4.2.1.4

Non-destructive test

The test is carried out at the beginning and end of each coil. As long as uniformity and meeting the set requirements over the length of the strip have been proven to the relevant third party with an adequate degree of reliability, the test for strip is carried out on one test section per coil. A reference shall be made in the inspection certificate to the verification of the uniformity over the strip length and the approval by the relevant third party.

Testing of the welded joints shall be according to DIN EN 10217-7, test category 2, option 25. Exception: for welded joints with wall thicknesses > 40 mm, the ultrasonic test method shall be used generally. In addition, for tubes with a wall thickness > 40 mm, the tube ends shall be tested according to DIN EN 10217-7, test category 2, option 16.

4.1.2

The tests are carried out according to DIN EN 10216-5, test category 2. Exception: for tubes with an outside diameter " 42,4 mm and nominal wall thickness " 3,6 mm and for internal tubes4), the mechanical-technological tests of test category 1 are carried out. In addition, the following tests shall be carried out:

Impact test

The impact test shall be carried out within the scope of the tensile test at room temperature: – for austenitic steels listed in Table 1 on thicknesses > 30 mm. When used according to AD 2000-Merkblatt W 10, on thicknesses > 20 mm. – for austenitic-ferritic steels on thicknesses > 6 mm. When used according to AD 2000-Merkblatt W 10 for temperatures of less than –10 °C, the test is carried out at –40 °C.

4.2.2

4.2.2.1

Seamless tubes

Impact test

For austenitic and austenitic-ferritic steels belonging to the stainless steels group, the intergranular corrosion test is carried out on each cast and heat treatment batch. If agreed with the user, this test may be dispensed with.

One impact test per test unit shall be carried out at room temperature according to DIN EN 10216-5 option 6 in the following cases: – For austenitic steels listed in Table 1 for thicknesses > 20 mm. – For austenitic-ferritic steels listed in Table 1 for thicknesses > 10 mm.

4.1.4 Material identification

4.2.2.2

All products shall be subjected to a suitable material identification test by the manufacturer.

For austenitic and austenitic-ferritic steels belonging to the stainless steels group, the intergranular corrosion test is carried out on each cast and heat treatment batch. If agreed with the user, this test may be dispensed with. The test shall be carried out according to DIN EN 10216-5, option 12.

4.1.3

4.2


Tubes

4.2.1

Welded tubes

The tests are carried out according to DIN EN 10217-7, test category 2, with the following additional tests. For tubes made of automatically welded strip, a maximum of 18 m is regarded as the “manufacturing length”.

4.2.2.3


Non-destructive tests

The impact test shall be carried out with half the scope (one test per test unit) of the tensile test at room temperature in the following cases: – for austenitic steels listed in Table 1 on the base metal for thicknesses > 20 mm and transverse to the weld for thicknesses > 12 mm (the test shall be carried out according to DIN EN 10217-7, option 8).

The non-destructive testing of the tubes shall be carried out according to DIN EN 10216-5, test category 2, options 14 and 15. For tubes with outside diameters " 101,6 mm and wall thicknesses " 5,6 mm, an ultrasonic examination according to DIN EN 10246-7 is carried out according to DIN EN 10216-5, options 14 and 15, on at least 10 % of the tubes. If imperfections are found in the tubes tested in this way, all the tubes shall be tested in a non-destructive manner over their whole length. In addition, for tubes with a wall thickness > 40 mm, the tube ends shall be tested according to DIN EN 10216-5, option 16. Testing of tubes made of steels covered by SEW 400 is carried out in the same way. For tubes within a pressure vessel (internal tubes)4), the ultrasonic examination may be dispensed with. This is generally the case also if the pressure in the tubes is greater than that in the pressure vessel.

1)

4)

4.2.1.1

Transverse tensile test on the weld

One test per test unit for an outside diameter > 219,1 mm (the test shall be carried out according to DIN EN 10217-7, option 22). 4.2.1.2

Impact test

See page 2.

The order shall specify whether internal tubes are involved.



4.3 Additional tests for bars and forgings 4.3.1 Impact test

The impact test shall be carried out within the scope of the tensile test at room temperature: – for austenitic steels listed in Table 1 on diameters > 100 mm. When used according to AD 2000-Merkblatt W 10, on thicknesses > 60 mm. – for austenitic-ferritic steels on diameters > 15 mm. When used according to AD 2000-Merkblatt W 10 for temperatures of less than –10 °C, the test is carried out at –40 °C. For forgings (disk, perforated disk, ring, bush), the relevant dimension according to Table B.1 of DIN EN 10222-1 applies instead of the diameter. 4.3.2


For austenitic and austenitic-ferritic steels belonging to the stainless steels group, the intergranular corrosion test is carried out on each cast and heat treatment batch. If agreed with the user, this test may be dispensed with. 4.3.3 Material identification 4.3.4 Non-destructive testing

An ultrasonic examination shall be carried out on bars and forgings with diameters or thicknesses > 160 mm5). 4.4 Additional tests for bolts and nuts 4.4.1 Bolts and nuts as described in the 1st paragraph of

2.3, 2.4 and 2.5 shall be tested according to DIN EN ISO 3506-1 or DIN EN ISO 3506-2 and DIN EN ISO 3269, taking into account Table 4. For the number of sets of specimens, at least the number given in Table 4 is applicable. In the case of numbers > 3500, at least 7 sets of specimens shall be tested as long as a higher number is not specified in the relevant standard or the number of sets of specimens can be reduced because of the same cast/heat treatment (see Table 4). The random sample number for the non-destructive test for surface imperfections and for the dimensional test is 20. All specimens shall meet the requirements (acceptance number AC = 0). Table 4. Number of random samples for non-destructive

testing of the mechanical properties in tests as specified in DIN EN ISO 3269 Number of sets of specimens for the mechanical test 1 " 200 > 200 to " 400 2 > 400 to " 800 3 > 800 to " 1200 4 > 1200 to " 1600 5 > 1600 to " 3000 6 > 3000 to " 3500 7 > 3500 DIN EN ISO 3269; min. 7 If the bolts come from a consignment that is proven to come from a cast with the same heat treatment, testing 4 sets of specimens is adequate regardless of the number in the consignment. Number in batch

5)

4.4.2 Bolts and nuts as described in the 2nd paragraph of

2.3, 2.6 and 2.7 shall be tested in line with the verification of suitability1). 4.4.3 For bolts and nuts manufactured by machining, the requirements of 4.3 are applicable.

5

Marking 5.1 The products shall be marked clearly and permanently according to applicable standards. 5.2 Bolts and nuts not covered by DIN EN ISO 3506-1 or DIN EN ISO 3506-2 shall bear the manufacturer’s mark and steel grade (abbreviation, material number or other mark to be agreed which shall be indicated in the inspection certificate). Bolts of sizes M 52 and above shall also have the cast number. If an inspection certificate 3.2 as described in DIN EN 10204 is specified, bolts of sizes ! M 30 shall bear the test stamp of the relevant third party. 6

Verification of quality characteristics

6.1

Plate, sheet and strip

6.1.1 For plate, sheet and strip made of the steels speci-

fied in 2.1 and 2.2, the data in Tables 2a to 2c are applicable for verification of the quality characteristics (mechanical properties, visual examination and dimensional test). For plate, sheet and strip made of the steels specified in 2.6 and 2.7, the verification of the quality characteristics is based on the suitability verification requirements1). 6.1.2 The ladle analysis, verification of resistance to intergranular corrosion and, where appropriate, non-destructive testing are provided by an inspection certificate 3.1 as specified in DIN EN 10204. 6.2

Tubes

6.2.1 Seamless tubes as specified in 2.1 shall be certified

with inspection certificate 3.2 as specified in DIN EN 10204 for wall thicknesses > 5,6 mm and inspection certificate 3.1 for wall thicknesses " 5,6 mm. Seamless tubes made of steels of material numbers 1.4311, 1.4429 and austenitic-ferritic steels shall be certified with inspection certificate 3.2 as specified in DIN EN 10204 regardless of the wall thickness. Welded tubes made of the steels specified in 2.1 shall be certified with inspection certificate 3.2 as specified in DIN EN 10204. If, after conclusion of the approval of the welding procedure (according to VdTÜV-Merkblatt 1151 Part 2), the quality and the uniformity of the production are verified over an adequately long period, the quality characteristics for wall thicknesses " 10 mm may be verified by an inspection certificate 3.1. The decisive factor here is the number of tubes per size, or per size group tested by the relevant third party. This applies only to the austenitic standard grades listed in Table 1a. The transition to an inspection certificate 3.1 shall be confirmed to the manufacturer and, in agreement with the relevant third party, may be made for each size group. If use is made of this provision, the letter of confirmation shall be quoted in the inspection certificate 3.1. For seamless and welded tubes made of the steels specified in 2.2, 2.6 and 2.7, verification of the quality characteristics is based on the suitability verification requirements1).

5)

One possible test consists of applying SEP 1921 or DIN EN 10028-4. The test scope and acceptable limits shall be fixed.

1)

See page 2.



The provisions of Table 13 and 16 (test category 2) of DIN EN 10216-5 and DIN EN 10217-7 are applicable to the ladle analysis, verification of resistance to intergranular corrosion, leak test, material identification and the result of the non-destructive testing. 6.2.2

semi-finished material. It is assumed that the manufacturer has been certified according to AD 2000-Merkblatt W 0. 6.4.4 Nuts and bars for nuts shall be certified with an inspection certificate 3.1 according to DIN EN 10204. 6.5

6.3 Bars and forgings 6.3.1 For bars and forgings made of the steels specified in

2.1, the data in Tables 3a to 3c are applicable for verification of the quality characteristics (mechanical properties, visual examination and dimensional test). For cold re-drawn bars as specified in 2.5, the quality characteristics shall be certified with an inspection certificate 3.1. 6.3.2 Bars and forgings made of the austenitic steels specified in 2.1 and 2.2 used as seamless tubular products within the meaning of AD 2000-Merkblatt W 12 with a working pressure of " 80 bar shall be certified with an inspection certificate 3.1. For working pressures > 80 bar, the quality characteristics shall be certified with an inspection certificate 3.2 as specified in DIN EN 10204. 6.3.3 For bars and forgings as specified in 2.2, 2.4, 2.6 and 2.7, the verification of the quality characteristics is based on the suitability verification requirements1). 6.3.4 Verification of resistance to intergranular corrosion is provided by an inspection certificate 3.1 according to DIN EN 10204 in all cases. 6.3.5 The non-destructive test shall be certified with an inspection certificate 3.1 according to DIN EN 10204. 6.4 Bolts and nuts 6.4.1 For bolts and nuts as specified in 2.3, an inspection

certificate 3.1 according to DIN EN 10204 is required. The inspection certificate 3.1 may be replaced by marking with the strength class and manufacturer’s mark if the manufacturer has continuously carried out the tests used for the basis of issuing an inspection certificate 3.1 and keeps the results available for inspection by the relevant third party. Substituting the test certificates with a stamp and compliance with the conditions shall be the subject of an agreement (see VdTÜV- Merkblatt 1253/4). For bolts and nuts as specified in 2.4, the verification of the quality characteristics is based on the suitability verification requirements1). 6.4.2 Bolts and nuts as specified in Table 1 not covered by DIN EN ISO 3506-1 and bolts made of other steels shall be certified with an inspection certificate 3.2 according to DIN EN 10204. 6.4.3 In the case of machined bolts, the requirements of 6.3.1 and 6.3.5 are applicable to bars. The design and the dimensional accuracy of machined bolts according to 2.1 to 2.3 without subsequent heat treatment may be certified by the bolt manufacturer by means of an inspection certificate 3.1 according to DIN EN 10204 supplemented by the inspection certificate 3.1 or 3.2 according to DIN EN 10204 for the

Content of the inspection certificates according to DIN EN 10204

The inspection certificates shall contain the data required in the technical delivery conditions/standards. In addition, each inspection certificate shall indicate the technical delivery condition/standard (e.g. DIN EN 10028-7) and technical regulations (AD 2000-Merkblatt W 2) used as a basis for the delivery. 6.6 The requirements relating to the validity of the inspection certificate according to DIN EN 10204 (1995 edition) are contained in 3.4 of AD 2000-Merkblatt W 0.

7

Design characteristics 7.1 For the steels specified in Table 1 (except for the steels covered by DIN EN 10269), the design characteristic applicable is the 1,0 % yield strength values within the given dimensional limits in the relevant DIN EN Standards and SEW 400 for the particular products. For the steels listed in Table 1, the 1,0 % yield strength6) may be used in individual cases as the design characteristic for thicknesses and diameters greater than those given in the relevant standards as long as the elongation after fracture and impact energy values are equal to, or greater than the minimum values given in the relevant standards. If this requirement is not met, the 0,2 % proof stress is applicable as the design characteristic. For steels covered by other material specifications, the strength characteristic values for the design shall be specified in the suitability verification1). 7.2 For bolts as specified in 2.5, the corresponding strength characteristic values in DIN EN ISO 3506-1 or Table 5 are applicable. The characteristic values in Table 6 apply for the 0,2 % proof stress. 7.3 The characteristic values given in the material specification or suitability verification1) for 20 °C are applicable up to 50 °C and those given for 100 °C are applicable up to 120 °C. In the other temperature ranges, linear interpolation between the values given is required (e.g. for 80 °C between 20 °C and 100 °C and for 180 °C between 100 °C and 200 °C), and no rounding is allowed. 7.4 With regard to long-term values, the temperature is rounded to the nearest 5 °C, 10 °C, 15 °C etc. The interpolated strength characteristic values shall be rounded down to the nearest whole number. 1) 6)

6)

See page 2. The minimum value to be adhered to shall be agreed with the material manufacturer.



Table 1a. Allocation of the austenitic steel grades to the relevant DIN EN Standards and SEW 400

Steel grade Material number

DIN EN 10028-7

DIN EN 10217-7

DIN EN 10216-5

SEW 400

DIN EN 10222-5

DIN EN 102693)

DIN EN 10272

X2CrNiN18-7

1.4318

×

–

–

–

–

–

–

X2CrNi18-9

1.4307

×

×

×

–

×

×

×

X2CrNi19-11

1.4306

×

×

×

–

–

–

×

X2CrNiN18-10

1.4311

×

×

×

–

×

–

×

X5CrNi18-10

1.4301

×

×

×

–

×

×

×

X5CrNi19-9

1.4315

×

–

–

–

–

–

–

X6CrNi18-10

1.4948

×

–

×

–

×

×

–

X5CrNi18-12

1.4303

–

–

–

–

–

×

–

X6CrNi23-13

1.4950

×

–

–

–

–

–

–

X6CrNi25-20

1.4951

×

–

–

–

–

–

–

X3CrNiN18-11

1.4949

–

–

–

–

–

–

×

X6CrNiTi18-10

1.4541

×

×

×

–

×

–

×

X6CrNiTiB18-10

1.4941

×

–

×

–

×

×

–

X2CrNiMo17-12-2

1.4404

×

×

×

–

×

×

×

X2CrNiMoN17-11-2

1.4406

×

–

–

–

×

–

×

X5CrNiMo17-12-2

1.4401

×

×

×

–

×

×

×

X6CrNiMoTi17-12-2

1.4571

×

×

×

–

×

–

×

X2CrNiMo17-12-3

1.4432

×

×

–

–

×

–

×

X2CrNiMo18-14-3

1.4435

×

×

×

–

×

–

×

X2CrNiMoN17-13-51)

1.4439

×

×

×

–

×

–

×

X4NiCrMoCuNb20-18-22)

1.4505

–

–

–

×

–

–

–

X1NiCrMoCuN25-20-51)

1.4539

×

×

×

–

×

–

×

X3CrNiMoTi25-252)

1.4577

–

–

–

×

–

–

–

X5NiCrAlTi31-20 / (+RA)2)

1.4958 (+RA)

×

–

×

–

–

–

–

X8NiCrAlTi32-212)

1.4959

×

–

×

–

–

–

–

X3CrNiMoBN17-13-32)

1.4910

×

–

×

–

×

×

–

Abbreviation Standard qualities

1) 2) 3)

In conjunction with VdTÜV-Werkstoffblätter 405 or 421. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0. In the heat treatment condition “+AT” (solution annealed and quenched).



Table 1b. Allocation of the austenitic steel grades to the relevant DIN EN Standards and to SEW 400


DIN EN 10028-7

DIN EN 10217-7

DIN EN 10216-5

SEW 400

DIN EN 10222-5

DIN EN 102693)

DIN EN 10272

X1CrNi25-211)

1.4335

×

–

×

–

–

–

–

X6CrNiNb18-10

1.4550

×

×

×

–

×

–

×

X8CrNiNb16-13

1.4961

×

–

×

–

–

–

–

X8CrNiMoNb16-162)

1.4981

–

–

×

–

–

–

–

X8CrNiMoVNb16-132)

1.4988

–

–

×

–

–

–

–

X7CrNiNb18-10

1.4912

–

–

×

–

×

–

–

X1CrNiMoN25-22-21)

1.4466

×

–

×

–

–

–

–

X6CrNiMoNb17-12-2

1.4580

×

–

×

–

–

–

×

X2CrNiMoN17-13-3

1.4429

×

×

×

–

×

×

×

X3CrNiMo17-13-3

1.4436

×

×

×

–

×

–

×

X3CrNiMo18-12-3

1.4449

–

–

–

–

×

–

–

X2CrNiMoN18-12-4

1.4434

×

–

–

–

–

–

–

X2CrNiMo18-15-4

1.4438

×

×

–

–

–

–

–

X1NiCrMoCu31-27-41)

1.4563

×

×

×

–

–

–

×

X1CrNiMoCuN25-25-52)

1.4537

×

–

–

–

–

–

–


1.4547

×

×

×

–

×

–

×


1.4529

×

×

×

–

×

–

×

X3CrNiCu19-102)

1.4650

–

–

–

–

×

–

–

X3CrNiCu18-9-42)

1.4567

–

–

–

–

–

×

–

X10CrNiMoMnNbVB15-10-12)

1.4982

–

–

×

–

–

×

–

X6CrNiMoB17-12-22)

1.4919

–

–

–

–

–

×

–

X6NiCrTiMoVB25-15-22)

1.4980

–

–

–

–

–

×4)

–

X2NiCrAlTi32-202)

1.4558

×

X7CrNiTi18-102)

1.4940

×

X6CrNiMo17-13-22)

1.4918

×


1.4982

×

Abbreviation Special qualities

1) 2) 3) 4)

In conjunction with VdTÜV-Werkstoffblätter 415, 435, 468, 473, 483 or 502. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0. In the heat treatment condition “+AT” (solution annealed and quenched). In the heat treatment condition “AT+P” (solution annealed and precipitation hardened).



Table 1c. Allocation of the austenitic steel grades to the relevant DIN EN Standards and to SEW 400


DIN EN 10028-7

DIN EN 10217-7

DIN EN 10216-5

SEW 400

DIN EN 10222-5

DIN EN 102693)

DIN EN 10272

X2CrNiN23-41)

1.4362

×

×

×

–

–

–

×

X2CrNiMoN22-5-31)

1.4462

×

×

×

–

×

–

×

X2CrNiMoCuN25-6-31)

1.4507

×

–

×

–

–

–

×

X2CrNiMoN25-7-42)

1.4410

×

×

×

–

×

–

×

X2CrNiMoCuWN25-7-42)

1.4501

×

×

×

–

–

–

×

X2CrNiMoSi18-5-32)

1.4424

–

–

×

–

–

–

–

Abbreviation Standard qualities

Special qualities

1) 2) 3)

In conjunction with VdTÜV-Werkstoffblätter 418, 496 or 508. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0. In the heat treatment condition “+AT” (solution annealed and quenched).



Table 2a. Verification of quality characteristics for plate, sheet and strip as specified in Table 1a

Steel grade Abbreviation

Type of inspection certificate as specified in DIN EN 10204 Material number

Product form1)

Thickness mm

Thickness mm

Thickness mm

Thickness2) mm

Thickness2) mm

Thickness2) mm

C

H

P

C

H

P

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

Standard qualities

X2CrNiN18-7

1.4318

"

X2CrNi18-9

1.4307

"

X2CrNi19-11

1.4306

"

X2CrNiN18-10

1.4311

"

X5CrNi18-10

1.4301

"

X5CrNiN19-9

1.4315

"

X6CrNi18-10

1.4948

"

X6CrNi23-13

1.4950

"

X6CrNi25-20

1.4951

"

X6CrNiTi18-10

1.4541

"

X6CrNiTiB18-10

1.4941

"

X2CrNiMo17-12-2

1.4404

"

X2CrNiMoN17-11-2

1.4406

"

X5CrNiMo17-12-2

1.4401

"

X6CrNiMoTi17-12-2

1.4571

"

X2CrNiMo17-12-3

1.4432

"

X2CrNiMo18-14-3

1.4435

"

X2CrNiMoN17-13-53)

1.4439

"

X4NiCrMoCuNb20-18-24)

1.4505

"


1.4539

"

X3CrNiMoTi25-254)

1.4577

"

X5NiCrAlTi31-20/(+RA)4)

1.4958 (+RA)

–

–

–

–

–

5)

X8NiCrAlTi32-214)

1.4959

–

–

–

–

–

5)

X3CrNiMoBN17-13-34)

1.4910

–

–

–

–

–

5)

1) 2) 3) 4) 5)

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

6

"

12

"

30

3.1

3.2

C = cold-rolled strip, H = hot-rolled strip, P = hot-rolled plate and sheet. If the max. thickness given in the DIN EN Standards is exceeded, a suitability verification/individual report is required according to AD 2000-Merkblatt W 0. In conjunction with VdTÜV-Werkstoffblätter 405 or 421. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0 (otherwise 3.2/individual report). Up to maximum thickness as specified in the DIN EN Standard.



Table 2b. Verification of quality characteristics for plate, sheet and strip as specified in Table 1b

Steel grade


Abbreviation Product form1)

Thickness mm

Thickness mm

Thickness mm

Thickness2) mm

Thickness2) mm

Thickness2) mm

C

H

P

C

H

P

–

–

–

5)

30

–

–

> 30

30

–

–

> 30

–

–

–

5)

30

–

–

> 30

30

–

–

> 30

–

–

> 30

30

–

–

> 30

30

–

–

> 30

Special qualities

X1CrNi25-213)

1.4335

–

–

X6CrNiNb18-10

1.4550

–

–

"

X8CrNiNb16-13

1.4961

–

–

"

X1CrNiMoN25-22-24)

1.4466

–

–

X6CrNiMoNb17-12-2

1.4580

–

–

"

X2CrNiMoN17-13-3

1.4429

"

6

"

12

"

X3CrNiMo17-13-3

1.4436

"

6

"

12

"

X2CrNiMoN18-12-4

1.4434

"

6

"

12

"

X2CrNiMo18-15-4

1.4438

"

6

"

12

"

X1NiCrMoCu31-27-43)

1.4563

–

–

–

–

–

5)


1.4537

–

–

–

–

–

5)


1.4547

–

–

–

–

–

5)


1.4529

–

–

–

–

–

5)

1) 2) 3) 4) 5)

30

3.1

3.2

C = cold-rolled strip, H = hot-rolled strip, P = hot-rolled sheet and plate. If the max. thickness given in the DIN EN Standards is exceeded, a suitability verification/individual report is required according to AD 2000-Merkblatt W 0. In conjunction with VdTÜV-Werkstoffblätter 435, 468, 483 or 502. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0 (otherwise 3.2/individual report). Up to maximum thickness as specified in the DIN EN Standard.

Table 2c. Verification of quality characteristics for plate, sheet and strip as specified in Table 1c

Steel grade Abbreviation


Product form1)

Thickness mm

Thickness mm

Thickness mm

Thickness2) mm

Thickness2) mm

Thickness2) mm

C

H

P

C

H

P

Austenitic-ferritic steels Standard qualities

X2CrNiN23-43)

1.4362

–

–

–

5)

5)

5)

X2CrNiMoN22-5-33)

1.4462

–

–

–

5)

5)

5)

X2CrNiMoCuN25-6-33)

1.4507

–

–

–

5)

5)

5)

X2CrNiMoN25-7-44)

1.4410

–

–

–

5)

5)

5)


1.4501

–

–

–

–

–

5)

3.2

Special qualities

1) 2) 3) 4) 5)

3.2

C = cold-rolled strip, H = hot-rolled strip, P = hot-rolled sheet and plate. If the max. thickness given in the DIN EN Standards is exceeded, a suitability verification/individual report is required according to AD 2000-Merkblatt W 0. In conjunction with VdTÜV-Werkstoffblätter 418, 496 or 508. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0 (otherwise 3.2/individual report). Up to maximum thickness as specified in the DIN EN Standard.



Table 3a. Verification of quality characteristics for bars and forgings made of steels specified in Table 1a

Steel grade

Type of inspection certificate as specified in DIN EN 10204 Thickness1) mm

Thickness1) mm

"

2504)

> 250

1.4306

"

250

> 250

X2CrNiN18-10

1.4311

"

250

> 250

X5CrNi18-10

1.4301

"

2504)

> 250

X6CrNi18-10

1.4948

"

2504)

> 250

X5CrNi18-12

1.4303

"

160

–

X6CrNiTi18-10

1.4541

"

250

> 250

X6CrNiTiB18-10

1.4941

"

250

> 250

X2CrNiMo17-12-2

1.4404

"

2504)

> 250

X2CrNiMoN17-11-2

1.4406

"

160

X5CrNiMo17-12-2

1.4401

"

2504)

> 250

X6CrNiMoTi-17-12-2

1.4571

"

250

> 250

X2CrNiMo17-12-3

1.4432

"

250

> 250

X2CrNiMo18-14-3

1.4435

"

250

> 250

X2CrNiMoN17-13-52)

1.4439

"

160

> 160

X4NiCrMoCuNb20-18-2

1.4505

"

160

> 160


1.4539

"

160

> 160

X3CrNiMoTi25-25

1.4577

"

160

> 160

X3CrNiMoBN17-13-33)

1.4910

–

5)

Abbreviation

Material number

X2CrNi18-9

1.4307

X2CrNi19-11

1)

2) 3) 4) 5)

3.1

> 160

3.2

Thickness of the determining cross-section according to DIN EN 10222-1 for forgings or diameter or smallest edge length for bars. If the max. thickness given in the DIN EN Standards is exceeded, a suitability verification/individual report is required according to AD 2000Merkblatt W 0. In conjunction with VdTÜV-Werkstoffblätter 405 or 421. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0 (otherwise 3.2/individual report). Diameter limit for products as specified in DIN EN 10269: " 160 mm. Up to maximum thickness as specified in the DIN EN Standard.



Table 3b. Verification of quality characteristics for bars and forgings made of steels specified in Table 1b

Steel grade

Type of inspection certificate as specified in DIN EN 10204 Thickness1) mm

Thickness1) mm

250

> 250

Abbreviation

Material number.

X6CrNiNb18-10

1.4550

X7CrNiNb18-10

1.4912

X6CrNiMoNb17-12-2

1.4580

X2CrNiMoN17-13-3

1.4429

X3CrNiMo17-13-3

1.4436

"

160

> 160

X3CrNiMo18-12-3

1.4449

"

160

> 160

X1NiCrMoCu31-27-42)

1.4563

–


1.4547

–


1.4529

–

5)

X3CrNiCu19-103)

1.4650

–

5)

X3CrNiCu18-9-43)

1.4567

–

4) 5)


1.4982

–

4) 5)

X6CrNiMoB17-12-23)

1.4919

–

4) 5)

X6NiCrTiMoVB25-15-22)

1.4980

–

4) 5)

1)

2) 3) 4) 5)

"

5)

– "

250

> 250 4) 5)

–

5)

3.1

5)

3.2

Thickness of the determining cross-section according to DIN EN 10222-1 for forgings or diameter or smallest edge length for bars. If the max. thickness given in the DIN EN Standards is exceeded, a suitability verification/individual report is required according to AD 2000Merkblatt W 0. In conjunction with VdTÜV-Werkstoffblätter 435, 483 or 502. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0 (otherwise 3.2 /individual report). Diameter limit for products as specified in DIN EN 10269: " 160 mm. Up to maximum thickness as specified in the DIN EN Standard.



Table 3c. Verification of quality characteristics for bars and forgings made of steels specified in Table 1c

Steel grade


Thickness1) mm

Thickness1) mm

X2CrNiN23-42)

1.4362

–

4)

X2CrNiMoN22-5-32)

1.4462

–

4)

X2CrNiMoCuN25-6-32)

1.4507

–

4)

X2CrNiMoN25-7-43)

1.4410

–

4)


1.4501

–

4)

Abbreviation Austenitic-ferritic steels

1)

2) 3) 4)

3.2

Thickness of the determining cross-section according to DIN EN 10222-1 for forgings or diameter or smallest edge length for bars. If the max. thickness given in the DIN EN Standards is exceeded, a suitablility verification/individual report is required according to AD 2000Merkblatt W 0. In conjunction with VdTÜV-Werkstoffblätter 418, 496 or 508. In conjunction with the certificate of production quality according to AD 2000-Merkblatt W 0 (otherwise 3.2/individual report). Up to maximum thickness as specified in the DIN EN Standard.

Table 5. Mechanical properties of bolts and nuts made of steels as specified in 2.3 and 2.4, of strength class 70 in diameter

range > M 24 bis " M 30 Bolts

1) 2) 3)

Steel group

Strength class

Diameter range3)

Tensile strength R m1) MPa min.

A 2 to A 5

70

> M 24 to " M 30

500

Nuts

0,2 % proof stress R p0,21) MPa min.

Elongation after fracture A 2) min.

Test stress S p MPa

250

0,4 d

500

All values are calculated and relate to the tensile stress area of the thread (see Annex A of DIN EN ISO 3506-1). The elongation after fracture is determined in compliance with the test procedure in 6.2 of DIN EN ISO 3506-1 on the appropriate length of the bolt and not on machined specimens with a gauge length of 5 d . For elongation after fracture values, see Annex 5 of DIN EN ISO 3506-1. For diameters above M 30, the strength values shall be agreed specially between the purchaser/user and the manufacturer as other 0,2 % proof stress values are possible for the tensile strengths specified in Table 5.

Table 6. Characteristic values of the 0,2 % proof stress R p0,2 at elevated temperatures of bolts as specified in 2.3 and 2.4

Characteristic values of the 0,2 % proof stress R p0,21) at 100 °C Steel group

A 2 to A 5

1)

Strength class

200 °C

Diameter range

300 °C

400 °C

MPa min.

50

"

M 39

175

155

135

125

70

"

M 24

380

360

335

315

> M 24 to " M 30

210

200

185

175

All values are calculated and relate to the tensile stress area of the thread (see Annex A of DIN EN ISO 3506-1).



Table 7.

Limit temperature1) for resistance to intergranular corroision Steel grade2) 3)

Abbreviation

Material number

Limit temperature4) °C

X5CrNi18-10

1.4301

300

X2CrNi19-11

1.4306

350

X2CrNiN18-10

1.4311

400

X6CrNiTi18-10

1.4541

400

X6CrNiNb18-10

1.4550

400

X5CrNiMo17-12-2

1.4401

300

X2CrNiMo17-12-2

1.4404

400

X2CrNiMoN17-11-2

1.4406

400

X6CrNiMoTi17-12-2

1.4571

400

X6CrNiMoNb17-12-2

1.4580

400

X2CrNiMoN17-13-3

1.4429

400

X2CrNiMo18-14-3

1.4435

400

X3CrNiMo17-13-3

1.4436

300

X2CrNiMo18-15-4

1.4438

350

X2CrNiMoN17-13-5

1.4439

400

X1NiCrMoCuN25-20-5

1.4539

400

1) 2) 3) 4)

Source: DIN 17440, September 1996 edition; for X1NiCrMoCuN25-20-5 (1.4539) VdTÜV- Werkstoffblatt 421. Delivery condition “+AT”. For materials X5CrNi18-10 (1.4301), X5CrNiMo17-12-2 (1.4401) and X3CrNiMo17-13-3 (1.4436) the thickness limits given in Table 9 of DIN EN 10028-7 apply. When used at the temperatures indicated and with a working period of 100 000 h, no intergranular corrosion occurs when tested according to this AD 2000-Merkblatt.





Publisher:

Verband der TÜV e.V.

E-Mail: [email protected] http://www.vdtuev.de

Source of supply:

Beuth Verlag GmbH 10772 Berlin Tel. 030/26 01-22 60 Fax 030/26 01-12 60 [email protected] www.beuth.de TÜV Rheinland Group / Einzellizenz - Bezug über die Beuth Verlag GmbH

AD_2000_W2_2008

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