1、Designation: A737/A737M 09 (Reapproved 2013)A737/A737M 17Standard Specification forPressure Vessel Plates, High-Strength, Low-Alloy Steel1This standard is issued under the fixed designation A737/A737M; the number immediately following the designation indicates the yearof original adoption or, in the
2、 case of revision, 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 Scope*1.1 This specification2 covers high-strength low-alloy steel plates for service in w
3、elded pressure vessels and piping components.1.2 This material is particularly intended for piping and pressure vessel applications where high strength and improvedtoughness are required.1.3 Two grades, designated B and C, are covered by this specification. Grade B provides a minimum yield strength
4、of 50 ksi345 MPa. Grade C provides a minimum yield strength of 60 ksi 415 MPa.1.4 The maximum thickness of plates is limited only by the capacity of the chemical composition and heat treatment to meetthe specified mechanical property requirements; however, current practice normally limits the maximu
5、m thickness to 4 in. 100mm for each grade.1.5 Grade C in the as-rolled condition is sensitive to cracking during flame cutting, transit, and handling, particularly inthicknesses over 2 in. 50 mm. Plates should not be shipped in the as-rolled condition only except by mutual agreement betweenthe manuf
6、acturer and the purchaser.1.6 The values stated in either inch-pound units 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 ot
7、her. Combining values from the two systems may result in nonconformance with the specification.1.7 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Stand
8、ards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements for Steel Plates for Pressure VesselsA435/A435M Specification for Straight-Beam Ultrasonic Exa
9、mination of Steel PlatesA577/A577M Specification for Ultrasonic Angle-Beam Examination of Steel PlatesA578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special Applications3. General Requirements and Ordering Information3.1 Material supplied to this specifi
10、cation shall conform to the requirements of Specification A20/A20M. These requirementsoutline the testing and retesting methods and procedures, permitted variations in dimensions and mass, quality, repair of defects,marking, loading, and ordering information.3.2 In addition to the basic requirements
11、 of this specification, certain supplementary requirements are available 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
12、 A20/A20M.3.3 If the requirements of this specification are in conflict with the requirements of Specification A20/A20M, the requirementsof this specification shall prevail.1 This specification is under the jurisdiction ofASTM Committee A01 on Steel, Stainless Steel and RelatedAlloys and is the dire
13、ct responsibility of Subcommittee A01.11on Steel Plates for Boilers and Pressure Vessels.Current edition approved Oct. 1, 2013Nov. 1, 2017. Published October 2013November 2017. Originally approved in 1976. Last previous edition approved in 20092013as A737/A737M 09. 09 (2013). DOI: 10.1520/A0737_A073
14、7M-13.10.1520/A0737_A0737M-17.2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-737 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 Standards
15、volume information, refer to the standards 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 a
16、dequately depict all changes accurately, ASTM 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 AS
17、TM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Manufacture4.1 Steelmaking PracticeThe steel shall be killed and shall conform to the fine austenitic grain size requirement ofSpecification A20/A20M.5. Heat Treatment5.1 The material shall be no
18、rmalized by heating to a suitable temperature which produces an austenitic structure, but notexceeding 1700F 925C, holding a sufficient time to attain uniform heat throughout the material, and cooling in air.5.2 If approved by the purchaser, cooling rates faster than air cooling are permitted for im
19、provement of strength or toughness,provided the plates are subsequently tempered in the temperature range from 1100 to 1300F 595 to 705C.5.3 When the fabricator elects to perform the heat treatment in 5.1 and 5.2, the manufacturer shall normalize plates conformingto Grade C within the range from 165
20、0 to 1850oF 900 to 1010oC prior to shipment for plates exceeding 2 in. 50 mm inthickness unless otherwise agreed to.6. Chemical Requirements6.1 The steel shall conform to the requirements as to chemical composition prescribed in Table 1 unless otherwise modified inaccordance with Supplementary Requi
21、rement S17, Vacuum Carbon-Deoxidized Steel, in Specification A20/A20M.7. Mechanical Requirements7.1 Tension TestsThe material as represented by the tension test specimens shall conform to the requirements shown in Table2.7.1.1 For nominal plate thicknesses of 34 in. 20 mm and under, when requirement
22、s for elongation in 2 in. 50 mm are to bedetermined, the 112-in. 40-mm wide rectangular specimen may be used for the tension test, and the elongation may be determinedin a 2-in. 50-mm gage length that includes the fracture and that shows the greatest elongation.TABLE 1 Chemical RequirementsNOTE 1Whe
23、re “” appears in this table, there is no requirement.ElementComposition, %Grade B Grade CHeat Product Heat ProductCarbon, max 0.20 0.22 0.22 0.24Manganese 1.151.50A 1.071.62A 1.151.50 1.071.62Phosphorus, max 0.025 0.025 0.025 0.025Sulfur, max 0.025 0.025 0.025 0.025Silicon 0.150.50 0.100.55 0.150.50
24、 0.100.55Vanadium . . . . . . 0.040.11 0.030.12Columbium,max0.05 0.05 0.05 0.05Columbium(Niobium),Bmax0.05 0.05 0.05 0.05Nitrogen, max . . . . . . 0.03 0.03A The maximum manganese may be increased to 1.60 % on heat analysis and1.72 % on product analysis, provided that the carbon content on heat anal
25、ysisdoes not exceed 0.18 %.B Columbium and niobium are interchangeable names for the same element andboth names are acceptable for use in A01 specifications.A737/A737M 172SUPPLEMENTARY REQUIREMENTSSupplementary requirements shall not apply unless specified in the purchase order.A list of standardize
26、d supplementary requirements for use at the option of the purchaser is includedin Specification A20/A20M. Several of those considered suitable for use with this specification arelisted below by title. Other tests may be performed by agreement between the supplier and thepurchaser.S1. Vacuum Treatmen
27、t,S2. Product Analysis,S3. Simulated Post-Weld Heat Treatment of Mechanical Test Coupons,S5. Charpy V-Notch Impact Tests,S8. Ultrasonic Examination in accordance with Specification A435/A435M,S11. Ultrasonic Examination in accordance with Specification A577/A577M,S12. Ultrasonic Examination in accor
28、dance with Specification A578/A578M, andS17. Vacuum Carbon-Deoxidized Steel.SUMMARY OF CHANGESCommittee A01 has identified the location of selected changes to this standard since the last issue(A737/A737M 09 (2013) that may impact the use of this standard. (Approved Nov. 1, 2017.)(1) Revised Table 1
29、 to include niobium.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
30、 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 or for
31、 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 known
32、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 a
33、t 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). 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 RequirementsGrade B Grade CYield strength, min, ksi MPa 50 345 60 415Tensile strength, ksi MPa 709048562080100550690Elongation in 8 in. 200 mm,min, %A18 18Elongation in 2 in. 50 mm,min, %A23 23A See Specification A20/A20M for elongation adjustment.A737/A737M 173
