1、Designation: A455/A455M 12A455/A455M 12aStandard Specification forPressure Vessel Plates, Carbon Steel, High-StrengthManganese1This standard is issued under the fixed designation A455/A455M; the number immediately following the designation indicates the yearof original adoption or, in the case of re
2、vision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification2 covers high-tensile strength carbon-manganese steel plates intended for welde
3、d pressure vessels.1.2 This steel is usually made to a semi-killed or capped deoxidation practice; however, at the purchasers or the steel producersoption, the steel may be made silicon-killed or aluminum-killed.1.3 The maximum thickness of plates furnished under this specification shall be 34 in. 2
4、0 mm.1.4 For plates produced from coil and furnished without heat treatment or with stress relieving only, the additional requirements,including additional testing requirements and the reporting of additional test results, of Specification A20/A20M apply.1.5 The values stated in either inch-pound un
5、its or SI units are to be regarded separately as standard. Within the text, the SI unitsare shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be usedindependently of the other. Combining values from the two systems may result in nonconformance
6、 with the specification.2. Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements for Steel Plates for Pressure Vessels3. General Requirements and Ordering Information3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These
7、requirements outline thetesting and retesting methods and procedures, permitted variations in dimensions, and mass, quality and repair of defects, marking,loading, and ordering information.3.2 In addition to the basic requirements of this specification, certain supplementary requirements are availab
8、le when additionalcontrol, testing, or examination is required to meet end use requirements. The purchaser is referred to the listed supplementaryrequirements in this specification and to the detailed requirements in Specification A20/A20M.3.3 Coils are excluded from qualification to this specificat
9、ion until they are processed into finished plates. Plates produced fromcoil means plates that have been cut to individual lengths from coil. The processor directly controls, or is responsible for, theoperations involved in the processing of coils into finished plates. Such operations include decoili
10、ng, leveling, cutting to length,testing, inspection, conditioning, heat treatment (if applicable), packaging, marking, loading for shipment, and certification.NOTE 1For plates produced from coil and furnished without heat treatment or with stress relieving only, three test results are reported for e
11、achqualifying coil. Additional requirements regarding plates from coil are described in Specification A20/A20M.3.4 If the requirements of this specification are in conflict with the requirements of Specification A20/A20M, the requirementsof this specification shall prevail.4. Heat Treatment4.1 Plate
12、s are normally supplied in the as-rolled condition. The plates may be ordered normalized or stress relieved, or both.1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee A01.11on Steel Plates
13、for Boilers and Pressure Vessels.Current edition approved May 1, 2012Nov. 1, 2012. Published June 2012March 2013. Originally approved in 1961. Last previous edition approved in 20072012 asA455/A455M 03 (2007).A455/A455M 12. DOI: 10.1520/A0455_A0455M-12.10.1520/A0455_A0455M-12A.2 For ASME Boiler and
14、Pressure Vessel Code applications, see related Specification SA-455/SA-455M in Section II of that Code.3 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards
15、Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, AS
16、TM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO
17、 Box C700, West Conshohocken, PA 19428-2959. United States15. Chemical Composition5.1 The steel shall conform to the chemical requirements given in Table 1.6. Mechanical Properties6.1 Tension TestThe plates, as represented by the tension test specimens, shall conform to the requirements given in Tab
18、le 2.7. Keywords7.1 carbon steel; high-strength steel plate for pressure purposes; welded pressure vesselsTABLE 1 Chemical RequirementsElements Composition, %Carbon, maxA,B 0.33Manganese:CHeat analysis 0.851.20Product analysis 0.791.30Phosphorus, maxA 0.025Sulfur, maxA 0.025Silicon:CSilicon:DHeat an
19、alysis 0.10 maxProduct analysis 0.13 maxA Applies to both heat and product analyses.B When the silicon is higher than 0.10 %, the carbon maximum shall be 0.28 %.C For each reduction of 0.01 percentage point below the specified maximum forcarbon, and increase of 0.06 percentage point above the specif
20、ied maximum formanganese is permitted, up to a maximum of 1.50 % by heat analysis and 1.60 %by product analysis.D At the purchasers or the producers option, silicon may be 0.40 % max on heatanalysis, 0.45 % max on product analysis.A455/A455M 12a2SUPPLEMENTARY REQUIREMENTSSupplementary requirements s
21、hall not apply unless specified in the purchase order. A list ofstandardized supplementary requirements for use at the option of the purchaser is included inSpecification A20/A20M. Those that are considered suitable for use with this specification are listedbelow by title.S3. Simulated Post-Weld Hea
22、t Treatment of Mechanical Test Coupons.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A455/A455M 12) that may impact the use of this standard. (Approved Nov. 1, 2012.)(1) Added a footnote on Manganese to Table 1.SUMMARY OF CHANGE
23、SCommittee A01 has identified the location of selected changes to this standard since the last issue(A455/A455M 03 (2007) that may impact the use of this standard. (Approved May 1, 2012.)(1) Table 1 was revised.(2) Section 3 was editorially revised.(3) Section 7 was added.ASTM International takes no
24、 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 entirely their own respons
25、ibility.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 standardsand should be addressed to
26、 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 Committee on Standards, at the addr
27、ess 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),
28、610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 2 Tensile RequirementsThicknessUp to 0.37
29、5 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 505640 7090 485620Yield strength, min, ksi MPa 38 260 37 255 35 240Elongation in 8 in. 200 mm, min, %A 15 15 15Elongation in 2 in. 50 mm, min, %A 22 22 22A See Specification A20/A20M for elongation adjustments.A455/A455M 12a3
