1、Designation: A 612/A 612M 03 (Reapproved 2007)Standard Specification forPressure Vessel Plates, Carbon Steel, High Strength, forModerate and Lower Temperature Service1This standard is issued under the fixed designationA 612/A 612M; the number immediately following the designation indicates the yearo
2、f 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. Scope*1.1 This specification2covers killed carbon-manganese-silic
3、on steel plates intended for welded pressure vessels inservice at moderate and lower temperatures.1.2 The maximum thickness of plates supplied under thisspecification is 1 in. 25 mm.1.3 For plates produced from coil and furnished withoutheat treatment or with stress relieving only, the additionalreq
4、uirements, including additional testing requirements and thereporting of additional test results, of Specification A 20/A 20M apply.1.4 The values stated in either inch-pound units or SI unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values st
5、ated 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 20M Specification for General Requirements forSteel
6、 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 UltrasonicExamination of Rolled Steel Plates for Special Applica-t
7、ions3. 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 mass, quality and repair of defects, marking,loadi
8、ng, and so forth.3.2 Specification A 20/A 20M also establishes the rules forordering information that should be complied with whenpurchasing material to this specification.3.3 In addition to the basic requirements of this specifica-tion, certain supplementary requirements are available whereaddition
9、al 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 Specification A 20/A 20M.3.5 Coils are excluded from qualification to this specifica-tion until
10、 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. Such operations include decoiling,leveling
11、, 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 test results are reported foreach qualifying
12、coil. Additional requirements regarding plates from coilare described in Specification A 20/A 20M.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 Pre
13、ssure Vessels.Current edition approved Nov. 1, 2007. Published March 2008. Originallyapproved in 1970. Last previous edition approved in 2003 as A 612/A 612M 03.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-612/SA-612M in Section II of that Code.3For referenced
14、 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.1*A Summary of Changes section appears at the end of this standard.Copyright
15、 ASTM International, 100 Barr 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. Materials and Manufacture4
16、.1 Steelmaking PracticeThe steel shall be killed andshall conform to the fine austenitic grain size requirement ofSpecification A 20/A 20M.5. Heat Treatment5.1 Plates are normally supplied in the as-rolled condition.Plates may be ordered normalized or stress relieved, or both.6. Chemical Composition
17、6.1 The steel shall conform to the requirements as tochemical composition given in Table 1 unless otherwisemodified in accordance with Supplementary Requirement S17,Vacuum Carbon-Deoxidized Steel, in Specification A 20/A 20M.7. Mechanical Properties7.1 Tension TestThe plates, as represented by the t
18、ensiontest specimens, shall conform to the requirements given inTable 2.SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the purchase order.Alist of standardized supplementary requirements for use at the option of the purchaser are includedin Specification A 2
19、0/A 20M. Those that are considered suitable for use with this specification arelisted by title.S1. Vacuum Treatment,S2. Product Analysis,S3. Simulated Post-Weld Heat Treatment of Test Coupons,S4.1 Additional Tension Test,S5. Charpy V-Notch Impact Test,S6. Drop Weight Test (for Material 0.625 in. 16
20、mm andover in Thickness),S7. High Temperature Tension Test,S8. Ultrasonic Examination in accordance with Specifica-tion A 435/A 435M,S9. Magnetic Particle Examination,S11. Ultrasonic Examination in accordance with Specifica-tion A 577/A 577M,S12. Ultrasonic Examination in accordance with Specifica-t
21、ion A 578/A 578M, andS17. Vacuum Carbon-Deoxidized Steel.TABLE 1 Chemical RequirementsElements Composition, %Carbon, max:Heat analysis 0.25Product analysis 0.29ManganeseHeat analysis 1.001.50Product analysis 0.921.62Phosphorus, maxA0.035Sulfur, maxA0.025SiliconHeat analysis 0.150.50Product analysis
22、0.130.55Copper, max:BHeat analysis 0.35Product analysis 0.38Nickel, max:BHeat analysis 0.25Product analysis 0.28Chromium, max:BHeat analysis 0.25Product analysis 0.29Molybdenum, max:BHeat analysis 0.08Product analysis 0.09Vanadium, max:BHeat analysis 0.08Product analysis 0.09AApplies to both heat an
23、d product analyses.BWhen analysis shows that the amount of an element is 0.02 % or lower, thevalue may be reported as #0.02 %.TABLE 2 Tensile RequirementsThickness0.5 in 12.5 mm and UnderOver 0.5 in. to 1 in. Over 12.5 to25 mmTensile strength, ksi MPa 83105 570725 81101 560695Yield strength, min,Aks
24、i MPa 50 345 50 345Elongation in 8 in. 200 mm, min, %B16 16Elongation in 2 in. 50 mm, min, %B22 22ADetermined by either the 0.2 % offset method or the 0.5 % extension-under-load method.BSee Specification A 20/A 20M for elongation adjustments.A 612/A 612M 03 (2007)2SUMMARY OF CHANGESCommittee A01 has
25、 identified the location of selected changes to this standard since the last issue(A 612/A 612M 01) that may impact the use of this standard.(1) 1.3, 3.6, and Note 1 were revised to be consistent with theterminology and requirements of Specification A 20/A 20M.(2) 3.3 was revised to be more general.
26、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 such patent rights, and the riskof infringement of such rights, are
27、 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 invited either for revision of this standard or for additional standar
28、dsand 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 received a fair hearing you shouldmake your views known to the ASTM Committ
29、ee 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 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).A 612/A 612M 03 (2007)3
