1、Designation: A 736/A 736M 03 (Reapproved 2007)Standard Specification forPressure Vessel Plates, Low-Carbon Age-Hardening Nickel-Copper-Chromium-Molybdenum-Columbium and Nickel-Copper-Manganese-Molybdenum-Columbium Alloy Steel1This standard is issued under the fixed designationA 736/A 736M; the numbe
2、r immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1
3、.1 This specification2covers two grades of low-carbonage-hardening alloy steel plates for welded pressure vesselsand piping components. The two grades are nickel-copper-chromium-molybdenum-columbium and nickel-copper-manganese-molybdenum-columbium steels.1.2 Plates under this specification are avail
4、able in threeclasses, as follows:1.2.1 Class 1As-rolled and precipitation heat treated.Available in thicknesses of34 in. 20 mm and under. Grade A,Class 1 has a minimum specified tensile strength of 90 ksi.Grade C, Class 1 has a minimum specified tensile strength of100 ksi.1.2.2 Class 2Normalized and
5、 precipitation heat treated.1.2.2.1 Available in Grade A only. Grade A has minimumspecified tensile strength of 72 ksi for thinner plates and 65 and60 ksi for thicker plates, with the minimum tensile strengthdependent upon the plate thickness. The maximum thickness ofGradeA, Class 2 is limited only
6、by the capacity of the chemicalcomposition and heat treatment to meet the specified mechani-cal property requirements; however, current practice usuallylimits the maximum thickness to 8 in. 200 mm.1.2.3 Class 3Quenched and precipitation heat treated.1.2.3.1 Available as Grade A with a minimum specif
7、iedtensile strength of 85 ksi for thinner plates and 75 and 70 ksifor thicker plates, with the minimum tensile strength dependentupon the plate thickness. The maximum thickness of Grade A,Class 3 plates is limited only by the capacity of the chemicalcomposition and heat treatment to meet the specifi
8、ed mechani-cal property requirements; however, current practice usuallylimits the maximum thickness to 8 in. 200 mm.1.2.3.2 Available as Grade C with a specified minimumtensile strength of 95 ksi for plates34 in. 20 mm and under inthickness and 90 ksi for plates over34 in. in thickness. Themaximum t
9、hickness of Grade C, Class 3, plates is 2 in. 50mm.1.3 This specification is expressed in both inch-pound unitsand in SI units. However, unless the order specifies theapplicable “M” specification designation (SI units), the mate-rial shall be furnished in inch-pound units.1.4 The values stated in ei
10、ther inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem are not exact equivalents. Therefore, each system mustbe used independently of the other. Combining values from thetwo systems may result in
11、 nonconformance with this specifi-cation.2. Referenced Documents2.1 ASTM Standards:3A 20/A 20M Specification for General Requirements forSteel Plates for Pressure VesselsA 435/A 435M Specification for Straight-Beam UltrasonicExamination of Steel PlatesA 577/A 577M Specification for Ultrasonic Angle-
12、BeamExamination of Steel PlatesA 578/A 578M Specification for Straight-Beam UltrasonicExamination of Rolled Steel Plates for Special Applica-tions3. General Requirements and Ordering Information3.1 Plates supplied to this product specification shall con-form to the requirements of Specification A 20
13、/A 20M, whichoutlines the testing and retesting methods and procedures,1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.11 on Steel Plates for Boilers and Pressure Vessels.Current editi
14、on approved Nov. 1, 2007. Published March 2008. Originallyapproved in 1976. Last previous edition approved in 2003 as A 736/A 736M 03.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-736 in Section II of that Code.3For referenced ASTM standards, visit the ASTM we
15、bsite, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United St
16、ates.permissible variations in dimensions and mass, quality andrepair of defects, marking, loading, and so forth.3.2 Specification A 20/A 20M also establishes the rules forordering information that should be complied with whenpurchasing plates to this specification.3.3 In addition to the basic requi
17、rements of this specifica-tion, certain supplementary requirements are available whereadditional control, testing, or examination is required to meetend use requirements.3.4 The purchaser is referred to the listed supplementaryrequirements in this specification and to the detailed require-ments in S
18、pecification A 20/A 20M.3.5 Coils are excluded from qualification to this specifica-tion until they are processed into finished plates. Platesproduced from coil means plates that have been cut toindividual lengths from coil. The processor directly controls, oris responsible for, the operations invol
19、ved in the processing ofcoils into finished plates. Such operations include decoiling,leveling, cutting to length, testing, inspection, conditioning,heat treatment (if applicable), packaging, marking, loading forshipment, and certification.NOTE 1For plates produced from coil and furnished without he
20、attreatment or with stress relieving only, three test results are reported foreach qualifying coil. Additional requirements regarding plates from coilare described in Specification A 20/A 20M.3.6 If the requirements of this specification are in conflictwith the requirements of Specification A 20/A 2
21、0M, the re-quirements of this specification shall prevail.4. Materials and Manufacture4.1 The steel shall be killed and shall conform to the fineaustenitic grain size requirement of Specification A 20/A 20M.5. Heat Treatment5.1 Class 1The plates shall be precipitation heat treated ata temperature in
22、 the range from 1000 to 1300F 540 to 705Cfor a time to be determined by the manufacturer or processor.5.2 Class 2The plates shall be normalized at a tempera-ture in the range from 1600 to 1700F 870 to 930C and thenprecipitation heat treated at a temperature in the range from1000 to 1300F 540 to 705C
23、 for a time to be determined bythe manufacturer or processor.5.3 Class 3The plates shall be quenched in a liquidmedium from a temperature in the range from 1600 to 1700F870 to 930C and then precipitation heat treated at atemperature in the range from 1000 to 1300F 540 to 705Cfor a time to be determi
24、ned by the manufacturer or processor.5.4 If the purchaser elects to perform the thermal treatment,the plates shall be accepted on the basis of mill tests made fromtest coupons heat treated as specified in the purchase order. Ifthe test coupon heat treatment requirements are not specified inthe purch
25、ase order, the manufacturer or processor shall heattreat the test coupons under conditions it considers appropriate.The manufacturer or processor shall inform the purchaser ofthe procedure followed in thermally treating the test coupons atthe mill.6. Chemical Composition6.1 The steel shall conform t
26、o the requirements as tochemical composition given in Table 1.7. Mechanical Properties7.1 Tension Test:7.1.1 The plates, as represented by the test specimens, shallconform to the requirements given in Table 2.7.1.2 For nominal plate thicknesses of34 in. 20 mm andunder, the 112-in. 40-mm wide rectang
27、ular test specimen maybe used for the tension test, and the elongation may bedetermined in a 2-in. 50-mm gage length that includes thefracture and shows the greatest elongation.7.2 Notch-Toughness Test:7.2.1 Charpy V-notch impact tests shall be made in accor-dance with Specification A 20/A 20M.7.2.2
28、 The test results of 10 by 10-mm specimens shall meetan average minimum value of 20 ftlbf 27 J at 50F 45C.TABLE 1 Chemical RequirementsElementComposition, %Grade A Grade CCarbon, maxHeat analysis 0.07 0.07Product analysis 0.09 0.090ManganeseHeat analysis 0.400.70 1.301.65Product analysis 0.350.78 1.
29、211.77Phosphorus, maxA0.025 0.025Sulfur, maxA0.025 0.025Silicon, maxHeat analysis 0.40 0.40Product analysis 0.45 0.45ChromiumHeat analysis 0.600.90 .Product analysis 0.560.94 .NickelHeat analysis 0.701.00 0.701.00Product analysis 0.671.03 0.671.03MolybdenumHeat analysis 0.150.25 0.150.25Product anal
30、ysis 0.120.28 0.120.28CopperHeat analysis 1.001.30 1.001.30Product analysis 0.951.35 0.951.35Columbium, minHeat analysis 0.02 0.02Product analysis 0.01 0.01AApplies to both heat analysis and product analysis.A 736/A 736M 03 (2007)2SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply
31、unless specified in the purchase order.A list of standardized supplementary requirements for use at the option of the purchaser is includedin Specification A 20/A 20M. Those that are considered suitable for use with this specification arelisted below by title.S1. Vacuum Treatment,S2. Product Analysi
32、s,S3. Simulated Post Weld Heat Treatment of MechanicalTest Coupons,S4. Additional Tension Test,S5. Charpy V-Notch Impact Test,S6. Drop-Weight Test (for Material 0.625 in. 16 mm andOver in Thickness),S8. Ultrasonic Examination in accordance with Specifica-tion A 435/A 435M,S9. Magnetic Particle Exami
33、nation,S10. Charpy V-Notch Test Curve,S11. Ultrasonic Examination in accordance with Specifica-tion A 577/A 577M,S12. Ultrasonic Examination in accordance with Specifica-tion A 578/A 578M,S13. NDT Temperature Determination,S15. Reduction of Area Measurement,S17. Vacuum Carbon-Deoxidized Steel,S19. R
34、estricted Chemical Requirements,S24. Strain Age Test, andS25. Weldability.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity
35、of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments
36、are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not r
37、eceived a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies
38、) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 2 Tensile RequirementsGradeAClass1,ksiMPaGradeAClass2,ksiMPaGradeAClass3,ksiMPaGradeCClass1,ksiMPaGra
39、deCClass3,ksiMPaYield strength, min34 in. and under 80 65 75 90 8520 mm and under 550 450 515 620 585Over34 to 1 in., incl . . . 65 75 . . . 80Over 20 to 25 mm, incl . . . 450 515 . . . 550Over 1 to 2 in., incl . . . 60 75 . . . 80Over 25 to 50 mm, incl . . . 415 515 . . . 550Over 2 to 4 in., incl .
40、 . . 55 65 . . . . . .Over 50 to 100 mm, incl . . . 380 450 . . . . . .Over 4 in. . . . 50 60 . . . . . .Over 100 mm . . . 345 415 . . . . . .Tensile strength34 in. and under 90110 7292 85105 100120 9511520 mm and under 620760 495635 585725 690825 655795Over34 to 1 in., incl . . . 7292 85105 . . . 9
41、0110Over 20 to 25 mm, incl . . . 495635 585725 . . . 620760Over 1 to 2 in., incl . . . 7292 85105 . . . 90110Over 25 to 50 mm, incl . . . 495635 585725 . . . 620760Over 2 to 4 in., incl . . . 6585 7595 . . . . . .Over 50 to 100 mm, incl . . . 450585 515655 . . . . . .Over 4 in. . . . 6080 7090 . . . . . .Over 100 mm . . . 415550 485620 . . . . . .Elongation2 in. 50 mm, min, %A20 20 20 20 20ASee Specification A 20/A 20M for elongation adjustment.A 736/A 736M 03 (2007)3
