1、Designation: A 662/A 662M 03 (Reapproved 2007)Standard Specification forPressure Vessel Plates, Carbon-Manganese-Silicon Steel,for Moderate and Lower Temperature Service1This standard is issued under the fixed designationA 662/A 662M; the number immediately following the designation indicates the ye
2、arof 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. Scope1.1 This specification2covers three grades of carbon-mang
3、anese-silicon steel plates intended primarily for service inwelded pressure vessels where improved low temperaturenotch toughness is important.1.2 The maximum thickness of plates is limited only by thecapacity of the composition to meet the specified mechanicalproperty requirements; however, current
4、 practice normallylimits the maximum thickness of plates furnished under thisspecification to 2 in. 50 mm.1.3 Grades A, B, and C comply substantially with therequirements of ISO Pressure Vessel Steels P9, P15, and P18,respectively.1.4 For plates produced from coil and furnished withoutheat treatment
5、 or with stress relieving only, the additionalrequirements, including additional testing requirements and thereporting of additional test results, of Specification A 20/A 20M apply.1.5 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the text,
6、 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 nonconformance with the specifi-cation.2. Referenced Documents2.1 ASTM Standards:3A 20/A 20
7、M 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-BeamExamination of Steel PlatesA 578/A 578M Specification for Straight-Beam UltrasonicExamina
8、tion of Rolled Steel Plates for Special Applica-tions3. General Requirements and Ordering Information3.1 Plates supplied to this product specification shall con-form to Specification A 20/A 20M, which outlines the testingand retesting methods and procedures, permissible variationsin dimensions and m
9、ass, quality, and repair of defects, mark-ing, loading, etc.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 requirements of this specificationcertain supplementary re
10、quirements are available where addi-tional control, testing, or examination is required to meet theend use requirements.3.4 The purchaser is referred to the listed supplementaryrequirements in this specification and to the detailed require-ments in Specification A 20/A 20M.3.5 Coils are excluded fro
11、m 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 involved in the processing ofcoils into finished plates
12、. 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 heattreatment or with stress relieving only, three t
13、est results are reported foreach qualifying coil. Additional requirements regarding plates from coilare described in Specification A 20/A 20M.1This specification is under the jurisdiction of Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01
14、.11 on Steel Plates for Boilers and Pressure Vessels.Current edition approved Nov. 1, 2007. Published March 2008. Originallyapproved in 1972. Last previous edition approved in 2003 as A 662/A 662M03.2For ASME Boiler and Pressure Vessel Code applications, see related Specifi-cation SA-662/SA-662M in
15、Section II of that Code.3For referenced ASTM standards, visit the ASTM website, 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 Ba
16、rr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.6 If the requirements of this specification are in conflictwith the requirements of Specification A 20/A 20M, the re-quirements of this specification shall prevail.4. Manufacture4.1 Steelmaking PracticeThe steel shall be
17、 killed andshall conform to the fine austenitic grain size requirement ofSpecification A 20/A 20M.5. Heat Treatment5.1 All plates of Grade A and plates of Grades B and C over112 in. 40 mm in thickness shall be normalized.5.2 Plates of Grades B and C, 112 in. 40 mm and under inthickness, are normally
18、 supplied in the as-rolled condition. Theplates may be ordered normalized or stress relieved, or both.6. Chemical Requirements6.1 The steel shall conform to the requirements as tochemical composition given in Table 1 unless otherwisemodified in accordance with Supplementary Requirement S17,Vacuum Ca
19、rbon-Deoxidized Steel, in Specification A 20/A 20M.7. Mechanical Requirements7.1 Tension Test RequirementsThe plates, as representedby the tension test specimens, shall conform to the require-ments given in Table 2.SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified
20、 in the purchase order. A list ofstandardized supplementary requirements for use at the option of the purchaser is included inSpecification A 20/A 20M. Those that are considered suitable for use with this specification are listedbelow by title.S1. Vacuum Treatment,S2. Product Analysis,S3. Simulated
21、Post-Weld Heat Treatment of MechanicalTest Coupons,S4.1 Additional Tension Test,S5. Charpy V-Notch Impact Test (see Appendix X1),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 Ex
22、amination,S11. Ultrasonic Examination in accordance with Specifica-tion A 577/A 577M,S12. Ultrasonic Examination in accordance with Specifica-tion A 578/A 578M, andS17. Vacuum Carbon-Deoxidized Steel.TABLE 1 Chemical RequirementsElementComposition, %Grade A Grade B Grade CHeat Analysis Product Analy
23、sis Heat Analysis Product Analysis Heat Analysis Product AnalysisCarbon, max 0.14 0.17 0.19 0.22 0.20 0.24Manganese 0.901.35 0.841.46 0.851.50 0.791.62 1.001.60 0.921.72Phosphorus, max 0.035 0.035 0.035 0.035 0.035 0.035Sulfur, max 0.035 0.035 0.035 0.035 0.035 0.035Silicon 0.150.40 0.130.45 0.150.4
24、0 0.130.45 0.150.50 0.130.55TABLE 2 Tensile PropertiesGrade A Grade B Grade CTensile strength, ksi MPa 5878 400540 6585 450585 7090 485620Yield strength,Amin, ksi MPa 40 275 40 275 43 295Elongation in 8 in. 200 mm, min, %B20 20 18Elongation in 2 in. 50 mm, min, %B23 23 22ADetermined by either the 0.
25、2 % offset method or the 0.5 % extension-under-load method.BSee Specification A 20/A 20M for elongation adjustments.A 662/A 662M 03 (2007)2APPENDIX(Nonmandatory Information)X1. NOTCH TOUGHNESSX1.1 When Charpy V-notch testing is required, the mini-mum values listed in Table X1.1 will be guaranteed on
26、normal-ized material for the temperature specified by the purchaser.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 of any
27、 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 are in
28、vited 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 receive
29、d 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) of t
30、his 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 X1.1 Charpy V-Notch RequirementsATestingTemperature,F CGrade A Grades B and CLongitudinalSpecimens,ftlbf JT
31、ransverseSpecimens,ftlbf JLongitudinalSpecimens,ftlbf JTransverseSpecimens,ftlbf J75 60 20 27 15 20 15 20 .60 50 30 41 18 24 20 27 .50 45 35 47 19 26 22 30 15 2040 40 40 54 20 27 25 34 20 2725 32 45 61 25 34 30 41 20 270 18 55 75 30 41 35 47 25 3432 0 70 95 35 47 40 54 25 3475 25 75 102 40 54 50 68 30 41AThe above values apply to the average of three full size specimens. Values forsubsize specimens are denoted as listed in Specification A 20/A 20M.A 662/A 662M 03 (2007)3
