ASTM A592 A592M-2004(2009) Standard Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels《压力容器用经回火和淬火的高强度低合金钢锻制附件和零件的.pdf
《ASTM A592 A592M-2004(2009) Standard Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels《压力容器用经回火和淬火的高强度低合金钢锻制附件和零件的.pdf》由会员分享,可在线阅读,更多相关《ASTM A592 A592M-2004(2009) Standard Specification for High-Strength Quenched and Tempered Low-Alloy Steel Forged Fittings and Parts for Pressure Vessels《压力容器用经回火和淬火的高强度低合金钢锻制附件和零件的.pdf(3页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: A 592/A 592M 04 (Reapproved 2009)Standard Specification forHigh-Strength Quenched and Tempered Low-Alloy SteelForged Fittings and Parts for Pressure Vessels1This standard is issued under the fixed designation A 592/A 592M; the number immediately following the designation indicates the y
2、earof original adoption 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.1. Scope1.1 This specification2covers high-strength quenched andt
3、empered low-alloy steel forged fittings and parts for pressurevessels. The maximum thickness of forgings under this speci-fication shall be 112 in. 38 mm for Grade A, and 4 in. 100mm for Grades E and F.NOTE 1These grades are similar to corresponding grades in Specifi-cation A 517/A 517M.1.2 Although
4、 no provision is made for supplementary re-quirements in this standard, the supplementary requirements inSpecification A 788/A 788M may be considered by the pur-chaser.1.3 Welding technique is of fundamental importance and itis presupposed that welding procedures will be in accordancewith approved m
5、ethods for the class of material used.1.4 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two syst
6、ems may result in non-conformancewith the standard.1.5 Unless the order specifies the applicable “M” specifica-tion designation, the material shall be furnished to the inch-pound units.2. Referenced Documents2.1 ASTM Standards:3A 370 Test Methods and Definitions for Mechanical Testingof Steel Produc
7、tsA 517/A 517M Specification for Pressure Vessel Plates,Alloy Steel, High-Strength, Quenched and TemperedA 788/A 788M Specification for Steel Forgings, GeneralRequirementsE112 Test Methods for Determining Average Grain Size3. Ordering Information and General Requirements3.1 In addition to the orderi
8、ng information required bySpecification A 788/A 788M, the purchaser shall include withthe inquiry and order the following information:3.1.1 A detailed drawing, a sketch, or written description ofthe forging.3.1.2 The charpy impact test temperature if a test tempera-ture lower than 32F 0C is required
9、.3.1.3 Additional heat treatment cycles to be applied to themechanical test specimens following removal from the heat-treated forging or special forged test block.3.1.4 Required supplementary requirement(s) from Specifi-cation A 788/A 788M.3.2 Material supplied to this specification shall conform to
10、the requirements of Specification A 788/A 788M, which out-lines additional ordering information, manufacturing require-ments, testing and retesting methods and procedures, marking,certification, product analysis variations, and additional supple-mentary requirements. Failure to comply with the requi
11、rementsof Specification A 788/A 788M constitutes non-conformancewith this specification.3.3 If the requirements of this specification are in conflictwith the requirements of Specification A 788/A 788M, therequirements of this specification shall prevail.4. Materials and Manufacture4.1 Melting Proces
12、sThe steel shall be made in accordancewith the Melting Process Section of Specification A 788/A 788M.4.2 Grain SizeThe steel shall be fully killed, fine grained(ASTM No. 5 or finer), as determined in accordance with TestMethods E112, Plate IV.4.3 DiscardSufficient discard shall be made from eachingo
13、t to ensure freedom from piping and excessive segregation.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.06 on Steel Forgings and Billets.Current edition approved April 1, 2009. Publi
14、shed April 2009. Originallyapproved in 1968. Last previous edition approved in 2004 as A 592/A 592M 04.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SA-592/SA-592M in Section II of that Code.3For referenced ASTM standards, visit the ASTM website, www.astm.org, orc
15、ontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.4.4 The finished pr
16、oduct shall be a hot-worked forging asdefined by Specification A 788/A 788M, and shall be forged asclose as practicable to the finished shape and size.5. Heat Treatment5.1 After forging and before reheating, the forgings shall becooled to provide substantially complete transformation ofaustenite. He
17、at treatment for properties shall consist of heatingthe forgings to not less than 1650F 900C, quenching in aliquid medium, and tempering at 1150F 620C minimum,with a holding time of 1 h/in. 1 h/25 mm minimum, but in nocase less than12 h.6. Chemical Requirements Chemical Requirements6.1 Heat Analysis
18、The heat analysis obtained from sam-pling in accordance with Specification A 788/A 788M shallcomply with Table 1.6.2 Product AnalysisThe purchaser may use the productanalysis provision of Specification A 788/A 788M to obtain aproduct analysis from a forging representing each heat ormultiple heat.7.
19、Mechanical Requirements7.1 The forgings as represented by tension tests shallconform to the requirements prescribed in Table 2, and to Table3 for lateral expansion opposite the notch in Charpy V-notchimpact tests. In addition, for the Charpy impact test, the valuesof energy absorption in foot-pounds
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