ASTM A387 A387M-2017a Standard Specification for Pressure Vessel Plates Alloy Steel Chromium-Molybdenum《铬钼合金钢压力容器板的标准规格》.pdf
《ASTM A387 A387M-2017a Standard Specification for Pressure Vessel Plates Alloy Steel Chromium-Molybdenum《铬钼合金钢压力容器板的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM A387 A387M-2017a Standard Specification for Pressure Vessel Plates Alloy Steel Chromium-Molybdenum《铬钼合金钢压力容器板的标准规格》.pdf(8页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: A387/A387M 17A387/A387M 17a Used in USDOE-NE StandardsStandard Specification forPressure Vessel Plates, Alloy Steel, Chromium-Molybdenum1This standard is issued under the fixed designation A387/A387M; the number immediately following the designation indicates the yearof original adoptio
2、n or, in the 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.This standard has been approved for use by agencies of the U.S. Department of Defense.1
3、. Scope*1.1 This specification2 covers chromium-molybdenum alloy steel plates intended primarily for welded boilers and pressurevessels designed for elevated temperature service.1.2 Plates are available under this specification in several grades having different alloy contents as follows:Nominal Nom
4、inalChromium MolybdenumGrade Content, % Content, %2 0.50 0.5012 1.00 0.5011 1.25 0.5022, 22L 2.25 1.0022 2.25 1.0021, 21L 3.00 1.0021 3.00 1.005 5.00 0.509 9.00 1.0091 9.00 1.001.3 Each grade except Grades 21L, 22L, and Grade 91 is available in two classes of tensile strength levels as defined in th
5、eTensile Requirements tables. Grades 21L and 22L are available only as Class 1. Grade 91 is available only as Class 2. Grade 91is available only as Class 2. Grade 91 consists of two types, with Type 2 differentiated from Type 1 by requiring restrictedcomposition for the enhancement of creep resistan
6、ce.NOTE 1Grade 911, previously covered by this specification, is now covered by Specification A1017/A1017M.1.4 The maximum thickness of plates is limited only by the capacity of the composition to meet the specified mechanicalproperty requirements.1.5 The values stated in either inch-pound units or
7、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 with t
8、his specification.1.6 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Techni
9、cal Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A20/A20M Specification for General Requirements for Steel Plates for Pressure VesselsA370 Test Methods and Definitions for Mechanical Testing of Steel ProductsA435/A435M Specification for Straight-Beam Ultrasonic Examin
10、ation of Steel Plates1 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 for Boilers and Pressure Vessels.Current edition approved March 15, 2017Nov. 1, 2017. Published
11、March 2017November 2017. Originally approved in 1955. Last previous edition approved in 20112017as A387/A387M 11.A387/A387M 17. DOI: 10.1520/A0387_A0387M-17. 10.1520/A0387_A0387M-17A.2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-387/SA-387M in Section II of th
12、at 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 Document Summary page on the ASTM website.This document is not an ASTM standard and is intended
13、 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, ASTM recommends that users consult prior editions as appropriate. In all cases only the current v
14、ersionof 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 Box C700, West Conshohocken, PA 19428-2959. United States1A577/A577M Specification for Ultraso
15、nic Angle-Beam Examination of Steel PlatesA578/A578M Specification for Straight-Beam Ultrasonic Examination of Rolled Steel Plates for Special ApplicationsA1017/A1017M Specification for Pressure Vessel Plates, Alloy Steel, Chromium-Molybdenum-Tungsten2.2 AWS Specifications:4A5.5/A5.5M Low-Alloy Stee
16、l Electrodes for Shielded Metal Arc WeldingA5.23/A5.23M Low-Alloy Steel Electrodes and Fluxes for Submerged Arc WeldingA5.28/A5.28M Low-Alloy Steel Electrodes and Rods for Gas Shielded Arc WeldingA5.29/A5.29M Low-Alloy Steel Electrodes for Flux Cored Arc Welding3. General Requirements and Ordering I
17、nformation3.1 Material supplied to this material specification shall conform to Specification A20/A20M. These requirements outline thetesting and retesting methods and procedures, permissible variations in dimensions and weight, quality and repair of defects,marking, loading, and ordering informatio
18、n.3.2 In addition to the basic requirements 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
19、 the detailed requirements in Specification 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.4. Manufacture4.1 Steelmaking PracticeThe steel shall be killed.5. Heat Treatment5.1
20、 Except for Grade 91, all plates shall be thermally treated either by annealing, normalizing and tempering, or, when permittedby the purchaser, accelerated cooling from the austenitizing temperature by air blasting or liquid quenching, followed bytempering. Minimum tempering temperatures shall be as
21、 follows:Grade Temperature, F C2, 12, and 11 1150 62022, 22L, 21, 21L, and 9 1250 67522, 21, and 9 1250 6755 1300 7055.1.1 Grade 91 plates shall be thermally treated, either by normalizing and tempering or by accelerated cooling from theaustenitizing temperature by air blasting or liquid quenching,
22、followed by tempering. Grade 91 plates shall be austenitized at 1900to 1975F 1040 to 1080C and shall be tempered at 1350 to 1470F 730 to 800C.5.2 Grade 5, 9, 21, 21L, 22, 22L, and 91 plates ordered without the heat treatment required by 5.1 shall be furnished in eitherthe stress relieved or the anne
23、aled condition.5.3 For plates ordered without the heat treatment required by 5.1, heat treatment of the plates to conform to 5.1 and to Table2 or Table 3, as applicable, shall be the responsibility of the purchaser.6. Chemical Requirements6.1 The steel shall conform to the requirements as to chemica
24、l composition shown in Table 1 unless otherwise modified inaccordance with Supplementary Requirement S17, Vacuum Carbon-Deoxidized Steel, in Specification A20/A20M for grades otherthan Grade 11.7. Metallurgical Structure7.1 Austenitic Grain SizeGrade 2 material shall have a coarse austenitic grain s
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