1、Designation: A 612/A612M 03Standard Specification forPressure Vessel Plates, Carbon Steel, High Strength, forModerate and Lower Temperature Service1This standard is issued under the fixed designation A 612/A612M; the number immediately following the designation indicates the yearof original adoption
2、 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-silicon steel plates int
3、ended 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 additionalrequirements, includin
4、g 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 stated in eachsystem
5、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:A 20/A20M Specification for General Requirements forSteel Plates for Pressure
6、Vessels3A 435/A435M Specification for Straight-Beam UltrasonicExamination of Steel Plates3A 577/A577M Specification for Ultrasonic Angle-BeamExamination of Steel Plates3A 578/A578M Specification for Straight-Beam UltrasonicExamination of Plain and Clad Steel Plates for SpecialApplications33. General
7、 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,loading, and so for
8、th.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 whereadditional control, te
9、sting, 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 they are proc
10、essed 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, cutting to l
11、ength, 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 coil. Addition
12、al 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 20M, the re-quirements of this specification shall prevail.1This specification is under the jurisdiction of A
13、STM 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 edition approved Sept. 10, 2003. Published October 2003. Originallyapproved in 1970. Last previous edition approved in 2001 as
14、 A 612/A 612M 01.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-612/SA-612M in Section II of that Code.3Annual Book of ASTM Standards, Vol 01.04.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Driv
15、e, PO Box C700, West Conshohocken, PA 19428-2959, United States.4. Materials and Manufacture4.1 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 c
16、ondition.Plates may be ordered normalized or stress relieved, or both.6. Chemical Composition Chemical Composition6.1 The steel shall conform to the requirements as tochemical composition given in Table 1 unless otherwisemodified in accordance with Supplementary Requirement S17,Vacuum Carbon-Deoxidi
17、zed Steel, in Specification A 20/A 20M.7. Mechanical Properties7.1 Tension Test The plates, as represented by the tensiontest specimens, shall conform to the requirements given inTable 2.SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the purchase order.Alist
18、 of standardized supplementary requirements for use at the option of the purchaser are includedin Specification A 20/A 20M. Those that are considered suitable for use with this specification arelisted by title.TABLE 1 Chemical RequirementsElements Composition, %Carbon, max:Heat analysisProduct analy
19、sisManganese0.250.29Heat analysis 1.001.50Product analysis 0.921.62Phosphorus, maxA0.035Sulfur, maxA0.025SiliconHeat analysisProduct analysis0.150.500.130.55Copper, max:BHeat analysis 0.35Product analysis 0.38Nickel, max:BHeat analysis 0.25Product analysis 0.28Chromium, max:BHeat analysis 0.25Produc
20、t analysis 0.29Molybdenum, max:BHeat analysis 0.08Product analysis 0.09Vanadium, max:BHeat analysis 0.08Product analysis 0.09AApplies to both heat and product analyses.BWhen analysis shows that the amount of an element is 0.02 % or lower, the value may be reported as #0.02 %.TABLE 2 Tensile Requirem
21、entsThickness0.5 in12.5 mmand UnderOver 0.5 in.to1in.Over 12.5 to 25mmTensile strength, ksi MPa 8310557072581101560695Yield strength, min,Aksi 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 % ex
22、tension-under-load method.BSee Specification A 20/A 20M for elongation adjustments.A 612/A612M 032S1. 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.
23、16 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 Specific
24、a-tion A 578/A 578M, andS17. Vacuum Carbon-Deoxidized Steel.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue (A 612/A612M 01) that may impact the use of this standard.(1) 1.3, 3.6, and Note 1 were revised to be consistent with thet
25、erminology and requirements of Specification A 20/A 20M.(2) 3.3 was revised to be more general.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 determina
26、tion of the validity 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 with
27、drawn. Your comments 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 you
28、r comments have not received 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 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/A612M 033
