Engineering Material and Process Specification TITLE: AISI 4130 Forgings To API 6A, PSL-3 Capability, TC-P, MC-EE For BB&C
HEMPS 2.707 DATE 4 Mar 2014 PAGE 1 OF 8 REVISION D
And API 16A, T-20, NACE And Non-NACE Pressure Vessel Service.
1. SCOPE
D 8 | 2 : 7 0 0 0 : 7 8 . 2 0 2 S 1 P / M 3 E 0 H / 6 1 0 2 : T : N D E E M W U E C I O V D
1.1 This specification defines the requirements for quenched quenched and tempered AISI 4130, UNS G41300, forgings to API 6A, Product Specification Level-2, PSL-3 Capability, Temperature Class P, Material Class EE for Bodies, Bonnets, End and Outlet Connections and API 16A, Temperature Class T-20 and other related applications designated on the Engineering Drawing. The forgings are suitable for assembly by fusion welding with other forgings or cast steel parts and are for use in low temperature applications and Pressure Vessel Service. Forgings supplied to the requirements of Dash Numbers -02, -03, -04, -10, -11 and -12 shall be acceptable for use in applications requiring qualification to NACE MR0175 / ISO 15156. 1.2 Five additional Dash Numbers, -05, -06, -07, -08, -09 and -13 are for use in applications other than sour service (Non-NACE applications) where qualification to NACE MR0175 / ISO 15156 is not required. When these Non-NACE Heat Treatment Conditions are required to be welded, the Weld Procedure Specifications (WPS) shall be approved by the M&P Department prior to the performance of the welding. 1.3 Specification Call Out When the Engineering Documents and/or Purchase Orders are prepared requiring material to be supplied to the requirements of this specification, this specification number and the appropriate specification dash number shown in Table No. 2 designating the required heat treatment condition and mechanical properties shall be shown in the BOM and/or the Purchase Orders.
1 7 3 0 : : 7 0 5 5 : : 5 4 1 1 5 5 0 0 / / 3 3 0 0 / / 4 4 1 1 0 0 2 2 : : N N O O D D E E W V E O I R V P E P R A h c i y v r o u p b e w T e N s a a l s o s i h c l i e N M
Example: For Minimum Yield Strength 75K: 75K: Material: HEMPS 2.707 - 03.
1.4 The provisions of this specification were previously contained in HEMPS 2.536 Rev G for Type I – AISI 4130 material. This specification has replaced that portion of HEMPS 2.536 Rev G for Type I – AISI 4130 material. It does not contain the requirements for HEMPS 2.536 Rev G for Type II – AISI 4140 material.
2. APPLICABLE DOCUMENTS 2.1
API 6A - Specification for Wellhead and Christmas Tree Equipment.
2.2
API 16A - Specification for Drill Through Equipment.
2.3
ASTM A370 - Test Methods and Definitions for Mechanical Testing of Steel Products
2.4
ASTM A751 - Method Practices and Definitions for Chemical Analysis of Steel Products
2.5
ASTM E10 - Test Method for Brinell Hardness of Metallic Materials.
: : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
Prepared By: Nick Tepovich Lead Engineer/Metallurgist Approved By:
Approved By: 3/4/14
Melissa Newbury Engineering Manager, Materials & Processes
3/4/14
REVISION D
HEMPS 2.707
DATE 4 Mar 2014
D 8 | 2 : 7 0 0 0 : 7 8 . 2 0 2 S 1 P / M 3 E 0 H / 6 1 0 2 : T : N D E E M W U E C I O V D
: : N N O O D D E E W V E O I R V P E P R A h c i y v r o u p b e w T e N s a a l s o s i h c l i e N M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
2.6
ASTM E18 - Test Method for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials
2.7
ASTM E23 - Test Method for Notched Bar Impact Testing of Metallic Materials
2.8
ASTM E110 - Test Method for Indentation Hardness of Metallic Materials by Portable Hardness Testers
2.9
ASTM E140 - Standard Hardness Conversion Tables for Metals
2.10
NACE MR0175 / ISO 15156 Part 1 and Part 2 – Petroleum and natural gas industries- Materials for use in H2S –containing Environments in oil and gas production.
2.11
HEMPS 9.604 – Guidelines for the Through Hardenability Of Various Grades of Steel and Selected Nickel Base Alloys. (For the internal use of Engineering for design purposes only .)
2.12
HEMPS 10.001 - Preproduction Approval of Castings and Forgings
2.13
HEMPS 10.801 – Hardness Testing Of Metals
2.14
DNV-OS-E101 – Drilling Plant
2.15
EN 10204, Type 3.1 – Metallic Products – Types of Inspection Documents
2.16
HEMPS 10.501 Supplement 6 – Ultrasonic Examination of Bars, Forgings & Tubing in Accordance with API 6A and ASTM 388.
3. MATERIALS REQUIREMENTS 3.1 Chemical Composition
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PAGE 2 OF 8
The steel shall conform to the chemical composition as shown below in Table No. I. The final chemical composition shall be determined on a heat basis in accordance with the requirements of ASTM A751. The samples used for the chemical analysis shall be taken from the steel ladle after refining or test material from the product of the heat. However, the material may be rejectable based on a chemical analysis of the actual parts. Table No. 1: Chemical Composition AISI 4130 - Weight Percent* Grade
Range
C
Mn
P
S
Si
Cu
Ni
Cr
Mo
Fe
AISI
Min.
0.28
0.40
--
--
0.15
--
--
0.80
0.15
--
4130
Max.
0.33
0.60
0.025
0.025
0.35
0.35
0.25
1.10
0.25
BAL.
*Vanadium may be added to the heats of this material up to a maximum content of 0.05% for the purposes of grain refinement. If Vanadium is added to the heat, it shall be reported on the test report. Intentional additions of Columbium are not permitted and the Cb content shall not exceed 0.01%. 3.2 Melting Practice 3.2.1 The steel supplied to the requirements of this specification shall be melted using basic electric furnaces. Although any of the following processing techniques are preferred they are not mandatory and shall also be acceptable for use: Vacuum Degassing, Argon Oxygen Decarburization (AOD), Vacuum Induction Melting (VIM), Vacuum Arc Remelting (VAR) or Electroslag Remelting (ESR). For the purpose of this specification, all material refined using one of the above remelting techniques shall have each remelt ingot considered as a separate heat. 3.2.2 The steel shall be fully killed and melted to a fine grain practice using standard deoxidizing/grain refining elements to deoxidize the heat, refine the grain size and to control the shape of the nonmetallic inclusions. The addition of elements to control the shape of the non-metallic inclusions is preferred but shall not be required.
3.3 Hot Working Practice
REVISION D DATE 4 Mar 2014
HEMPS 2.707 PAGE 3 OF 8
Forgings supplied to the requirements of this specification shall be hot worked above the recrystallization temperature and shall be subjected to a minimum hot work ratio of 3 to 1 in all sections of the forging. 3.4 Forging and Size of QTCs If separately forged QTCs are used to represent the forgings, they shall be subjected to an amount of hot work similar to but not greater than the forgings that the QTC represents. The QTC shall have an equivalent round, ER, equal to or greater than the forging it represents but need not exceed an ER of 5 inches, that is, 5 inch round x needed length or 4 inch square x length. 3.5 Heat Treatment
D 8 | 2 : 7 0 0 0 : 7 8 . 2 0 2 S 1 P / M 3 E 0 H / 6 1 0 2 : T : N D E E M W U E C I O V D 1 7 3 0 : : 7 0 5 5 : : 5 4 1 1 5 5 0 0 / / 3 3 0 0 / / 4 4 1 1 0 0 2 2 : : N N O O D D E E W V E O I R V P E P R A h c i y v r o u p b e w T e N s a a l s o s i h c l i e N M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
NOTE: Prior to heat treatment, the forgings shall be inspected to verify that all sharp corners have been radiused or chamfered to help prevent quench cracking. Engineering shall be consulted to verify that any radii or chamfers will not encroach on the finished machined tolerances. 3.5.1 All material supplied to this specification shall be heat treated in accordance with a detailed written procedure to produce the desired mechanical properties shown in Table No. 2. Acceptable heat treatment procedures shall also meet the requirements of API 6A and or 16A as applicable. The heat treatment of all material shall be performed in furnaces, which are calibrated to a recognized industry standard, such as, AMS-H-6875. The required heat treatment cycles are shown below. 3.5.2 Normalizing After the completion of all hot working operations, at the discretion of the forging supplier, the forgings may be normalized as follows. 3.5.2.1 The material may be normalized at 1650°F ± 25°F and air cooled. 3.5.2.2 The time at the normalizing temperature, if performed, shall be a minimum of thirty (30) minutes per inch of maximum cross section thickness with a minimum time of one (1) hour at temperature. 3.5.3 Austenitizing Prior to Quench After normalizing or hot working the forgings shall be austenitized pri or to quench as follows: 3.5.3.1 The material shall be austenitized at 1600°F ± 25°F. 3.5.3.2 The time at the austenitizing temperature shall be a minimum of thirty (30) minutes per inch of maximum cross section thickness with a minimum time of one (1) hour at temperature. 3.5.4 Liquid Quench 3.5.4.1 The material shall be quenched in water. 3.5.4.2 For water quenching, the temperature of the water or water based quenching medium o o shall not exceed 100 F at the start of the quench, nor exceed 120 F at the completion of the quench using vigorous agitation of the media during the quench. 3.5.5 Tempering 3.5.5.1 Minimum Tempering Time The forgings shall be tempered for a minimum time of 1 hour + T/2 hours, where T is the maximum cross section thickness of the forging in inches. The cycle time at temperature for the QTCs shall not exceed the time at temperature for the forgings. 3.5.5.2 Minimum Tempering Temperature In order to obtain the specified mechanical properties, the parts and QTCs supplied to dash numbers -02, -03, -04, -10, -11 and -12 shall be tempered at a minimum tempering temperature of 1225°F, while the parts and QTC supplied to dash numbers -05, -06, -07, -08 and -09 shall be tempered at a minimum tempering temperature of 1000°F. Parts and QTCs supplied to dash number -13 shall be tempered at a minimum tempering temperature of 1150°F.
REVISION D
HEMPS 2.707
DATE 4 Mar 2014
PAGE 4 OF 8
3.5.6 Heat Treatment of the Qualification Test Coupon (QTC) 3.5.6.1 A single test coupon from a prolongation of the forging, a sacrificial forging or a separately produced qualification test coupon (QTC) shall be obtained from each heat of material. The QTC shall be heat treated to the same heat treatment cycle as that of the forging and at the same time with the forging. An exception to this requirement shall be when GE Oil & Gas purchases material to the Dash Number -01 condition from Table #2, Mechanical Properties. In this case, the requirements of Note #1, Table #2 shall take precedence over the heat treat requirements of the QTC. For Dash Number -01, the austenitizing and tempering temperatures for the parts shall be within 25°F of the QTC and the cycle times at each temperature for the QTC shall not exceed that of the parts. The QTC may be attached to one of the forgings it represents during the entire heat treat operation. The location of the attachment weld shall be shown on the forging drawing. Welding shall not be permitted on the QTC except for the attachment type welds.
D 8 | 2 : 7 0 0 0 : 7 8 . 2 0
3.5.7 Reheat Treatment of Material
2 S 1 P / M 3 E 0 H / 6 1 0 2 : T : N D E E M W U E C I O V D
3.5.7.1 One complete reheat treatment of the forgings or preformed part sections and the QTCs may be performed without receipt of approval from Engineering if the mechanical properties of the forgings fail to meet the requirements of Table No. 2. Additional reheat treatments require prior approval from Engineering. 3.5.7.2 Re-tempering of the forgings or preformed part sections and the QTCs to reduce the hardness and lower the tensile strength of the material or to improve the impact properties may be performed as necessary to achieve the specified mechanical property requirements.
1 7 3 0 : : 7 0 5 5 : : 5 4 1 1
3.6 Mechanical Properties NOTE: GE Oil & Gas products utilize Heat Treatment Condition(s) Dash No. –02 through –13 only.
5 5 0 0 / / 3 3 0 0 / / 4 4 1 1 0 0 2 2
3.6.1 The mechanical properties shall meet the requirements as shown in Table No. 2 below for the specific heat treatment condition. All mechanical properties shall be determined in accordance with ASTM A370. 3.6.2 The mechanical test specimens shall be obtained from a prolongation of the forging, a sacrificial forging or from a separately produced qualification test coupon (QTC). If a separately produced QTC is used, it shall be from the same heat as the production parts and shall have an equivalent round equal to or greater than the ER of the forging(s) it represents. The QTC need not exceed an ER of 5 inch (5 inch diameter or 4 inch square). The test specimens shall be obtained from within the one quarter (1/4 T) thickness location of either the prolongation or the thickest cross section of a sacrificial part. Test specimens taken from a separately produced QTC shall be taken from within the one quarter (1/4 T) thickness envelope of the QTC. Dash number -12 requires a separate test bar per heat per heat treatment lot evaluated to the requirements of Table No. 2.
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Table No. 2: Mechanical Properties, Dash Numbers -02 Through -04 Spec Dash
Heat Treatment
0.2% Yield Str.
Tensile Ult. Str.
Elong., in 2 In.
Reduct. Of Area
Hardness Range
No.
Condition
Min. Ksi
Min. Ksi
Min. %
Min. %
HBN (2)
Ft.-Lbs.
Lat. Exp.
Temp.
–01
I
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
–02
II-60K
60.0
85.0
18
35
187-237
34/23 (3)
15 mils (4)
-20°F
–03
III-75K
75.0
95.0
18
35
207-237
20/15 (3)
15 mils (4)
-20°F
See Notes to Table No. 2 below the table continuation on the following page.
Impact Testing Requirements Energy, Lat. Exp. & Temps.
REVISION D
HEMPS 2.707
DATE 4 Mar 2014
PAGE 5 OF 8
Table No. 2 Continued: Mechanical Properties, Dash Numbers -05 Through -13
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Spec Dash
Heat Treatment
0.2% Yield Str.
Tensile Ult. Str.
Elong., in 2 In.
Reduct. Of Area
Hardness Range
No.
Condition
Min. Ksi
Min. Ksi
Min. %
Min. %
HBN (2)
Ft.-Lbs.
Lat. Exp.
Temp.
–04
IV-80K
80.0
95.0
18
35
217-237
20/15 (3)
15 mils (4)
-20°F
–05
V-85K (5)
85.0
105.0
17
35
223-269
20/15 (3)(7)
15 mils (4)
-20°F
–06
VI-95K (5)
95.0
120.0
15
35
255-302
20/15 (3)(7)
15 mils (4)
-20°F
–07
VII-60K (5)
60.0
85.0
18
35
187-255
20/15 (3)
15 mils (4)
-20°F
–08
VIII-75K (5)
75.0
95.0
18
35
217-255
20/15 (3)
15 mils (4)
-20°F
–09
IX-80K (5)
80.0
95.0
18
35
217-255
20/15 (3)
15 mils (4)
-20°F
–10
X-60K
60.0
85.0
18
35
187-237
20/15 (3)
Not Req.
-50°F
–11
XI-75K
75.0
95.0
18
35
207-237
20/15 (3)
Not Req.
-50°F
–12
XII-75K (6)
75.0
95.0
18
35
207-237
34/23 (3)
15 mils (4)
-20°F
–13
XIII-80K (5)
80.0
95.0
18
35
217-255
31/21 (3)(8)
15 mils (4)
-20°F
Notes To Table No. 2: 1.
Dash Number -01 material shall be supplied in the annealed, normalized, normalized and tempered or full annealed condition and is utilized for those situations when heat treatment of the part to Dash Number -02 through Dash Number -13 is accomplished during the fabrication sequence of the final component. The test bars shall be prepared, heat treated and tested to the requirements of Dash Number -02 through Dash Number -13 as shown on the Engineering Drawing and the Purchase Order. These mechanical property requirements are those of the final intended heat treatment condition; that is, Dash Number -02 through Dash Number -13. They shall be determined by testing specimens obtained from each heat of material heat treated to the requirements of the final intended condition as shown on the Engineering Drawing.
2.
This value shall be determined in accordance with ASTM E10, ASTM E110 or HEMPS 10.801.
3.
This value is the minimum average absorbed energy value of a set of three (3) longitudinal or transverse specimens and the minimum value for a single specimen tested at the minimum test temperature shown in Table No. 2. No more than one specimen shall exhibit an impact value below the minimum average and no single specimen shall exhibit an impact value below the minimum value for absorbed energy for Dash Number -02 through Dash Number -13.
4.
This value is the minimum lateral expansion value required for each of the three impact test specimens tested from each set of three and shall be reported on the test report for informational purposes only. The Percent Ductile Fracture (Shear) shall also be reported for information purposes only.
5.
These Heat Treatment Conditions are for use only in applications where NACE MR0175 qualification is NOT a requirement for the forgings.
6.
The Dash Number -12 requires a separate test bar per heat per heat treatment lot to be evaluated per the requirements of Table No. 2.
7.
These values meet the requirements for piping and pressure containing components that are part of the choke & kill system per DNV-OS-E101.
8.
These values meet the requirements for structural and mechanical components per DNV-OS-E101.
: : N N O O D D E E W V E O I R V P E P R A h c i y v r o u p b e w T e N s a a l s o s i h c l i e N M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
Impact Testing Requirements Energy, Lat. Exp. & Temps.
REVISION D DATE 4 Mar 2014
HEMPS 2.707 PAGE 6 OF 8
3.7 Tensile Testing 3.7.1 A minimum of one longitudinal and one transverse tensile test shall be performed for each QTC obtained from each heat lot of material supplied to this specification. One hardness test shall be run on each tensile specimen for comparison with the ultimate tensile strength. This hardness value shall be recorded with the tensile results; however, it need not be reported on the test report. 3.7.2 The tensile test values obtained from the QTC shall be in accordance with the requirements shown above in Table No. 2 for the specific heat treatment condition shown on the Engineering Drawing and/or the Purchase Order. D 8 | 2 : 7 0 0 0 : 7 8 . 2 0 2 S 1 P / M 3 E 0 H / 6 1 0 2 : T : N D E E M W U E C I O V D 1 7 3 0 : : 7 0 5 5 : : 5 4 1 1 5 5 0 0 / / 3 3 0 0 / / 4 4 1 1 0 0 2 2 : : N N O O D D E E W V E O I R V P E P R A h c i y v r o u p b e w T e N s a a l s o s i h c l i e N M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
3.7.3 If the results of the tensile specimen fail to meet the requirements of Table No. 2, two additional tensile specimens in each testing direction may be obtained from the same QTC without further heat treatment and tested. The results from each of these four additional specimens shall meet the requirements specified. 3.8 Impact Testing 3.8.1 Impact testing shall be performed on a minimum of one set of three (3) full size Charpy V-notch impact test specimens oriented both longitudinally and transversely to the length of the QTC obtained from each heat lot. The absorbed energy requirements of Table No. 2 shall apply regardless of orientation. The testing shall be performed in accordance with the requirements of ASTM E23. 3.8.2 The test temperature and the absorbed energy values shall be in accordance with the requirements shown above in Table No. 2. Except for Dash Numbers -10 and -11, the lateral expansion and percent ductile fracture values shall be reported for information purposes only. 3.8.3 If the results of the impact testing fails to meet the requirements of Table No. 2, one additional set of three (3) impact test specimens may be obtained from the same QTC without further heat treatment and tested. The results from each of the three (3) additional specimens shall meet the minimum average absorbed energy requirement. 3.9 Hardness Testing 3.9.1 At least one hardness test shall be performed on each production forging and QTC. The hardness test shall be performed on each forging at a location identified on the Engineering Drawing and at least two hardness tests shall be performed on each QTC. 3.9.2 The hardness testing shall be performed in accordance with ASTM E10, ASTM E18 or ASTM E110 and shall be performed after the last heat-treatment cycle for mechanical properties. 3.9.3 The hardness values obtained shall be in accordance with the requirements shown above in Table No. 2. All conversions made between hardness testing methods shall be made in accordance with ASTM E140.
4. QUALITY REQUIREMENTS 4.1 Forging Identification and Traceability All forgings shall be traceable to and identified by the part number with revision letter, heat number and the heat treatment lot number (applicable when an individual heat is heat treated in multiple heat treatment lots) in accordance with the Engineering Drawing. The type of marking and the location shall be as specified on the Engineering Drawing. 4.2 Weld Repair Weld repairs shall not be permitted without prior written approval of the Weld Procedure Specification (WPS) from the Engineering Services Department.
REVISION D DATE 4 Mar 2014
HEMPS 2.707 PAGE 7 OF 8
4.3 Nondestructive Examination of Forgings 4.3.1 Visual Examination The entire surface of each forging shall be visually examined for defects. The material shall typically have a matte finish not exceeding 500 R A. There shall be no injurious surface imperfections, such as, cracks, orange peel, laps or seams. All injurious surface imperfections detrimental to the end use of the part shall be removed by the forging manufacturer. 4.3.2 Surface Defect Removal
D 8 | 2 : 7 0 0 0 : 7 8 . 2 0 2 S 1 P / M 3 E 0 H / 6 1 0 2 : T : N D E E M W U E C I O V D 1 7 3 0 : : 7 0 5 5 : : 5 4 1 1 5 5 0 0 / / 3 3 0 0 / / 4 4 1 1 0 0 2 2 : : N N O O D D E E W V E O I R V P E P R A h c i y v r o u p b e w T e N s a a l s o s i h c l i e N M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
Removal of injurious surface defects by grinding is acceptable if those surface defects are ground to sound metal and reexamined after grinding. The ground area shall blend smoothly with the surrounding surface and the section thickness of the forging shall not be less than the minimum dimension permitted by the Engineering Drawing. 4.3.3 Surface NDE Capability Unless otherwise specified, all forgings shall be capable of meeting the Surface NDE, magnetic particle inspection or liquid penetrant inspection requirements of API 6A, PSL-3 after heat treating and machining to the final print dimensions. When specified, the forgings shall be surface NDE inspected as shown on the Engineering Drawing and/or the Purchase Order. The NDE inspection results shall be reported and certified on a separate report if specified. 4.3.4 Volumetric NDE 4.3.4.1 Volumetric NDE of First Article Forgings All First Article Forgings shall be examined using ultrasonic testing as specified in the preproduction qualification procedure in accordance with HEMPS 10.001. The preproduction examination shall continue until proper forging practice is established for each forging part number. 4.3.4.2 Volumetric NDE After final heat treatment for mechanical properties, all forgings shall be ultrasonically inspected. A scan plan shall be provided to GE Oil & Gas prior to testing. The results of the ultrasonic testing shall be reported and certified on a separate report. The ultrasonic testing shall be done according to HEMPS 10.501 Supplement 6. All forgings shall meet the volumetric requirements of API 6A, PSL-3.
5. PREPRODUCTION APPROVAL First Article qualification in accordance with HEMPS 10.001 and/or forging preproduction quality plans developed in accordance with specific internal Quality Documents shall only be required when referenced on the Engineering Drawing and/or on the Purchase Order.
6. CERTIFICATION REQUIREMENTS 6.1 The forging supplier shall prepare and submit a Certified Material Test Report to GE Oil & Gas with, or prior to, the shipment of the forgings. The following information shall be reported as a minimum:
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HEMPS 2.707 PAGE 8 OF 8
6.1.1 Purchase order number, current GE Oil & Gas specification number and revision level, Material part number including revision level and the Quantity of forgings shipped. 6.1.2 A statement of compliance that the forgings, supplied to the requirements of this specification, were subjected to a minimum hot work ratio of 3 to 1 in all sections of the forging. 6.1.3 The mill heat number and the heat chemical analysis including the elements used for Deoxidization/Grain Refinement and Sulfide Morphology control if used 6.1.4 The mechanical properties of the material including tensile results, impact results including test temperature and hardness results from the production material and the QTC in accordance with the requirements shown in Table No. 2 D 8 | 2 : 7 0 0 0 : 7 8 . 2 0 2 S 1 P / M 3 E 0 H / 6 1 0 2 : T : N D E E M W U E C I O V D 1 7 3 0 : : 7 0 5 5 : : 5 4 1 1 5 5 0 0 / / 3 3 0 0 / / 4 4 1 1 0 0 2 2 : : N N O O D D E E W V E O I R V P E P R A h c i y v r o u p b e w T e N s a a l s o s i h c l i e N M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
6.1.5 A copy of the heat treat charts and documentation indicating cycle time, cycle temperature, quenching medium used and a certificate of compliance with the quenching medium temperature requirements all traceable to the appropriate heat number and heat treatment lot number. 6.1.6 A statement of Surf ace NDE capability or Surface NDE Records when required and specified by the Engineering Drawing and/or the Purchase Order 6.1.7 A certified test report showing the results of the ultrasonic testing 6.1.8 A statement that no repair welding was performed on the forgings supplied to this specification. 6.1.9 A copy of the original mill certification in English shall be submitted. The certificate shall be according to EN 10204 Type 3.1. 6.2 Certification Records Control All certification records required by this specification shall be legible, identifiable and retrievable. All records required by this specification shall be signed and dated including the position responsibility of the signatory.
7. ENGINEERING DESIGN GUIDELINES FOR HEAT TREATMENT 7.1 Through Hardening Section Thickness Limitations When through hardening of the heat treated section thickness of the finished part is required by and is a function of the design, the limitations on part section thickness at the time of heat treatment must be considered during the design. In order to achieve the necessary mechanical properties at the required location in the finished part the forged part may be required to be rough machined to a maximum section thickness prior to heat treatment. 7.2 Engineering Design Guidelines on Part Section Thickness For guidelines on the recommended maximum as heat treated part section thickness at the time of heat treatment for material called out by this specification, the Design Engineer shall review the provisions for part section thickness limitations set fourth in HEMPS 9.604. For situations beyond the scope of HEMPS 9.604 the Design Engineer shall consult with M & P for assistance in determining the proper course of action prior to and during heat treatment of the rough forgings or the rough machined forgings.
Engineering Material and Process Specification TITLE: Ultrasonic Examination of Bars, Forgings, Bolting, and Tubing In Accordance With API 6A, ASTM A388, and API 20E
HEMPS 10.501 DATE: 30 April 2015 PAGE 1 OF 2 REVISION: C SUPPLEMENT: 6
1. SCOPE 1.1 This specification specifies the detailed requirements for the volumetric examination of forgings, bars, bolting and tubing using straight and angle beam ultrasonic techniques. Volumetric examinations performed IAW with specification satisfy the minimum requirements set forth in API 6A Product Specification Level (PSL) 3 and API 20E Bolting Specfication Level (BSL) 3. C |
2.
6 8 S 2 : 1 0 0 5 0 : . 0 8 1 0
2.1 API 6A – Specification for Wellhead and Christmas Tree Equipment 2.2 ASTM A388 – Standard Practice for Ultrasonic Examination of Steel Forgings 2.3 ASTM E317 – Standard Practice for Evaluating Performance Characteristics of Ultrasonic Testing Instruments and Systems without the Use of Electronic Measurement Instruments
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2.4 ASTM E428 – Standard Practice for Fabrication and Control of Metal, Other than Aluminum, Reference Blocks Used in Ultrasonic Testing 2.5 ASTM E213 – Standard Practice for Ultrasonic Testing of Metal Pipe and Tubing 2.6 API 20E – Alloy and Carbon Steel Bolting for use in the Petroleum and Natural Gas Industries.
3.
D D E E W V E O I R V P E P R A r y e r i u z b a w C e N e n a i s c s n i a l r e F M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
EQUIPMENT The equipment shall meet the requirements of ASTM A388 except as modified in this section. 3.1 Test Blocks: Test blocks shall be made IAW ASTM E317 or ASTM E428 to establish the specified +/5% instrument linearity.
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APPLICABLE DOCUMENTS
3.2 Report: The search unit type, frequency, transducer size, and wedges shall be described on the examination report.
4.
CALIBRATION 4.1 For forgings, the Distance Amplitude Curve (D.A.C.) shall be based on a 1/16” flat bottom hole for metal thickness through 1 ½”, 1/8” flat bottom hole for metal thickness from 1 ½” through 6” and ¼” flat bottom hole for metal thicknesses exceeding 6”. All other calibration requirements shall be IAW ASTM A388 . 4.2 For tubing, a reference standard of a convenient length shall be prepared from a length of pipe or tube of the same nominal diameter, wall thickness, material, surface finish and acoustical properties as the material to be examined. Longitudinal and transverse notches shall be placed on both the outside and inside surfaces of the reference standard to ensure satisfactory examination sensitivity near each of these boundaries. Notch dimensions and notch depths are outlined in ASTM E213, Section 11.0, Reference Standards. 4.3 For bolting, the Distance Amplitude Curve (DAC) shall be based on a 1/8” flat-bottom hole for straightbeam technique and 1/16” side-drilled hole, 1” deep for angle-beam technique.
Prepared By: Fran Cazier Administration Assistant Approved By:
Approved By: 30 Apr 2015 Date
Melissa Newbury Engineering Manager, Materials & Processes
30 Apr 2015 Date
REVISION C
DATE 30 APR 2015
5.
SUPPLEMENT 6
HEMPS 10.501
PAGE 2 OF 2
PROCEDURE
In addition to the requirements listed below, the procedure/techniques used shall be IAW ASTM A388. 5.1 Sequence of Operations for Ultrasonic Examination: The UT examination shall be performed after all heat treatments for mechanical properties. Post weld stress relieving is not counted as long as the temperature used is below the tempering temperature used to achieve mechanical properties. The UT examination shall be performed prior to drilling holes (other than boring), threads, tapers, grooves or contoured sections which would prevent volumetric examination. 5.2 General Scan Requirements: As far as possible, all bars, forgings and tubing shall be scanned in two directions (perpendicular). Bars and disc forgings are to be scanned using a straight beam from one flat face and radially from the circumference. Cylindrical sections and hollow forgings shall be scanned radially and axially using the straight beam technique. When the outside to inside diameter ratio is less than 2.0 to 1, an angle beam examination shall be performed in Section 5.4. Tubing shall be scanned in accordance with ASTM E213. In general, the scans required to be performed are those which will produce a volumetric examination to ensure no indications exist that exceed the acceptance criteria specified in Section 6.1.
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5.3 Straight Beam Examination: Carbon and alloy steel bars and forgings shall be examined using 2.25 MHz search units wherever practical. Coarse grained austenitic materials and long metal paths usually require a 1.0 MHz search unit. It may be necessary to use a 0.4 MHz search unit for some materials with long paths. 5.4 Angle Beam Examination: A 1.0 MHz, 45° search unit shall be used whenever practical. Other frequencies and angles may be used to better detect flaws which is dependent on part geom etry and material. 5.5 Pulse Reflection Examination: A pulsed ultrasonic angle beam by means of non-contact, surface contact or immersion method shall be used for tubing. Details are outlined in ASTM E213, Section 4.0, Summary of Practice.
6.
5 5 0 0 / / 5 5 0 0 / / 5 5 1 1 0 0 2 2 : : N N O O D D E E W V E O I R V P E P R A r y e r i u z b a w C e N e n a i s c s n i a l r e F M : : Y Y B B D D E E W V E O I R V P E P R A O N : G D N E I S D A N E E L P E
ACCEPTANCE CRITERIA 6.1 No single indications exceeding the reference Distance Amplitude Curve (D.A.C.). No multiple indications exceeding 50% of the reference D.A.C. Multiple indications are defined as two or more indications (each exceeding the 50% D.A.C.) within ½” of each other in any direction.
7. RECORDING 7.1 Straight beam indications shall be recorded as specified in ASTM A388. All discontinuities equal to or greater than 50% of the reference D.A.C. as determined through angle beam examination shall be recorded.
8.
REPORTING 8.1 For forgings, a report shall be prepared which contains all of the items listed in ASTM A388 and the heat number and equipment used as specified in Section 3. For tubing, a report shall be prepared that meets the requirements of ASTM E213, Section 15.0, Documentation. For bolting, results shall be documented on the test report.
Batch Print Summary Report Username: Sumit Garg 2016/03/12 08:00:28 Doc/Part # -------------------HEMPS 2.707 HEMPS 10.501 S6
Rev --D C
State -------RELEASED RELEASED
File Name -------------------hemps 2_707.pdf hemps 10_501_s6.pdf
Class Name -------------------LEGACY_STD_HYDRIL LEGACY_STD_HYDRIL
(NOTE: * - Not Released, > - ECO Started on this item, ! - Export Controlled)
