1、Designation: A 455/A 455M 03Standard 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 case of revision, th
2、e 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 for welded pressure
3、 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 in. 20 mm.1.4 For p
4、lates 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-pound units or SI unit
5、sare 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 nonconformance with the specifi
6、-cation.2. Referenced Documents2.1 ASTM Standards:A 20/A 20M Specification for General Requirements forSteel Plates for Pressure Vessels33. General Requirements and Ordering Information3.1 Plates supplied to this product specification shall con-form to Specification A 20/A 20M, which outlines the te
7、stingand 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 specification.3.3 In
8、 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 specification and to the
9、 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 controls, oris responsib
10、le 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 plates produced from c
11、oil 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 conflictwith the requiremen
12、ts 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 the chemical requir
13、ementsgiven in Table 1.6. Mechanical Properties6.1 Tension Test The 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 and is the direc
14、t responsibility of SubcommitteeA01.11 on Steel Plates for Boilers and Pressure Vessels.Current edition approved Sept. 10, 2003. Published October 2003. Originallyapproved in 1961. Last previous edition approved in 2001 as A 455/A 445M 01.2For ASME Boiler and Pressure Vessel Code applications, see r
15、elated Specifi-cation SA-455/SA-455M 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 Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.SUPPLEMENTARY
16、 REQUIREMENTSSupplementary requirements shall not apply unless specified 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 liste
17、dbelow by title.S3. Simulated Post-Weld Heat Treatment of MechanicalTest Coupons.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue (A 455/A455M 01) that may impact the use of this standard.(1) 1.4, 3.5, and Note 1 were revised to be
18、 consistent with theterminology 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 a
19、dvised that determination 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, eith
20、er reapproved or withdrawn. 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.
21、 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 address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Indi
22、vidual 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).TABLE 2 Tensile RequirementsThicknessUp to 0.375in. 9.5 mmOver 0.
23、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, %A15 15 15Elongation in 2 in. 50 mm, min, %A22 22 22ASee Specification A 20/A20M for elongation adjustments.
24、TABLE 1 Chemical RequirementsElements Composition, %Carbon, maxA,B0.33Manganese:Heat analysis 0.851.20Product analysis 0.791.30Phosphorus, maxA0.035Sulfur, maxA0.035SiliconC:Heat 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 032
