1、Designation: A 455/A 455M 03 (Reapproved 2007)Standard Specification forPressure Vessel Plates, Carbon Steel, High-StrengthManganese1This standard is issued under the fixed designation A 455/A 455M; the number immediately following the designation indicates the yearof original adoption or, in the ca
2、se 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 high-tensile strength carbon-manganese steel plates intended f
3、or welded pressure vessels.1.2 This steel is usually made to a semi-killed or cappeddeoxidation practice; however, at the purchasers or the steelproducers option, the steel may be made silicon-killed oraluminum-killed.1.3 The maximum thickness of plates furnished under thisspecification shall be34 i
4、n. 20 mm.1.4 For plates produced from coil and furnished withoutheat treatment 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-poun
5、d 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 nonconformanc
6、e with the specifi-cation.2. Referenced Documents2.1 ASTM Standards:3A 20/A 20M Specification for General Requirements forSteel Plates for Pressure Vessels3. General Requirements and Ordering Information3.1 Plates supplied to this product specification shall con-form to Specification A 20/A 20M, whi
7、ch outlines the testingand retesting methods and procedures, permissible variationsin dimensions and mass, quality and repair of defects, marking,loading, etc.3.2 Specification A 20/A 20M also establishes the rules forordering information that should be complied with whenpurchasing plates to this sp
8、ecification.3.3 In addition to the basic requirements 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 specif
9、ication 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 processed into finished plates. Platesproduced from coil means plates that have been cut toindividual lengths from coil. The processor directly contro
10、ls, oris responsible for, the operations involved 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 plat
11、es produced from coil and furnished without heattreatment 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 conflictw
12、ith the requirements of Specification A 20/A 20M, the re-quirements of this specification shall prevail.4. Heat Treatment4.1 Plates are normally supplied in the as-rolled condition.The plates may be ordered normalized or stress relieved, orboth.5. Chemical Composition5.1 The steel shall conform to t
13、he chemical requirementsgiven in Table 1.6. Mechanical Properties6.1 Tension TestThe plates, as represented by the tensiontest specimens, shall conform to the requirements given inTable 2.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys
14、and is the direct responsibility of SubcommitteeA01.11 on Steel Plates for Boilers and Pressure Vessels.Current edition approved Nov. 1, 2007. Published March 2008. Originallyapproved in 1961. Last previous edition approved in 2003 as A 455/A 445M 03.2For ASME Boiler and Pressure Vessel Code applica
15、tions, see related Specifi-cation SA-455/SA-455M in 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 onth
16、e ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the purchase or
17、der. 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.S3. Simulated Post-Weld Heat Treatment of MechanicalTest Coupons.SUMMARY OF
18、 CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A 455/A 455M 01) that may impact the use of this standard.(1) 1.4, 3.5, and Note 1 were revised to be consistent with theterminology and requirements of Specification A 20/A 20M.(2) 3.3 was re
19、vised 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 determination of the validity of any such patent rights, and the riskof infring
20、ement 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 invited either for revision of this standard
21、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 received a fair hearing you shouldmake your views
22、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
23、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 RequirementsThicknessUp to 0.375 in.9.5 mmOver 0.375 to 0.580 in.15 mmOver 0.580 to 0.750 in.20 mmTensile strength, ksi MPa 7595 515655 7393
24、 505640 7090 485620Yield strength, min, ksi MPa 38 260 37 255 35 240Elongation in 8 in. 200 mm, min, %A15 15 15Elongation in 2 in. 50 mm, min, %A22 22 22ASee Specification A 20/A 20M for elongation adjustments.TABLE 1 Chemical RequirementsElements Composition, %Carbon, maxA,B0.33Manganese:Heat analy
25、sis 0.851.20Product analysis 0.791.30Phosphorus, maxA0.035Sulfur, maxA0.035Silicon:CHeat analysis 0.10 maxProduct analysis 0.13 maxAApplies to both heat and product analyses.BWhen the silicon is higher than 0.10 %, the carbon maximum shall be 0.28 %.CAt the purchasers or the producers option, silicon may be 0.40 % max on heatanalysis, 0.45 % max on product analysis.A 455/A 455M 03 (2007)2
