1、Designation: A592/A592M 10 (Reapproved 2015)Standard Specification forHigh-Strength Quenched and Tempered Low-Alloy SteelForged Parts for Pressure Vessels1This standard is issued under the fixed designation A592/A592M; the number immediately following the designation indicates the yearof original ad
2、option 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 andtempered low-alloy
3、 steel forged parts for pressure vessels. Themaximum thickness of forgings under this specification shallbe 112 in. 38 mm for Grade A, and 4 in. 100 mm for GradesE and F.NOTE 1These grades are similar to corresponding grades in Specifi-cation A517/A517M.1.2 Although no provision is made for suppleme
4、ntary re-quirements in this standard, the supplementary requirements inSpecification A788/A788M 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 methods for the class of material use
5、d.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 systems may result in non-conformancewit
6、h 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:3A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA517/A517M Specification for Pressu
7、re Vessel Plates, AlloySteel, High-Strength, Quenched and TemperedA788/A788M Specification for Steel Forgings, General Re-quirementsE112 Test Methods for Determining Average Grain Size3. Ordering Information and General Requirements3.1 In addition to the ordering information required bySpecification
8、 A788/A788M, 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.3.1.3 Additional heat treatment cycles t
9、o 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 A788/A788M.3.2 Material supplied to this specification shall conform tothe requirements of Specification A788/A788
10、M, which out-lines additional ordering information, manufacturingrequirements, testing and retesting methods and procedures,marking, certification, product analysis variations, and addi-tional supplementary requirements. Failure to comply with therequirements of Specification A788/A788M constitutes
11、non-conformance with this specification.3.3 If the requirements of this specification are in conflictwith the requirements of Specification A788/A788M, therequirements of this specification shall prevail.4. Materials and Manufacture4.1 Melting ProcessThe steel shall be made in accordancewith the Mel
12、ting Process Section of Specification A788/A788M.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 eachingot to ensure freedom from piping and excessive segreg
13、ation.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 March 1, 2015. Published March 2015. Originallyapproved in 1968. Last pr
14、evious edition approved in 2010 as A592/A592M 10.DOI: 10.1520/A0592_A0592M-10R15.2For 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, orcontact ASTM Customer S
15、ervice at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 194
16、28-2959. United States14.4 The finished product shall be a hot-worked forging asdefined by Specification A788/A788M, 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
17、 complete transformation ofaustenite. Heat 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 Requirement
18、s6.1 Heat AnalysisThe heat analysis obtained from sam-pling in accordance with Specification A788/A788M shallcomply with Table 1.6.2 Product AnalysisThe purchaser may use the productanalysis provision of Specification A788/A788M to obtain aproduct analysis from a forging representing each heat ormul
19、tiple heat.7. 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
20、in foot-pounds or joules and the fractureappearance in percent shear shall be recorded and reported forinformation.7.2 Sampling:7.2.1 Samples for mechanical test specimens shall be re-moved after the quenching and tempering heat treatment. Thepurchaser shall specify any additional thermal treatments
21、 thatshall be given to the heat treated test specimens. (This isintended to simulate subsequent thermal treatments which maybe performed by the fabricator.)7.2.2 Samples shall be removed so that the test specimenswill have their major axes parallel to the direction of majorworking of the forging.7.2
22、.3 Test specimens may be machined from a productionforging, or prolongation thereof, or from special forged blockssuitably worked and heat treated with the production forgings.Such special blocks shall be obtained from an ingot, slab, orbillet from the same heat as the forgings they represent andsha
23、ll be reduced by forging in a manner similar to that for theproducts to be represented. The forging reduction for a specialtest block shall not exceed the minimum forging reduction ofthe forgings represented, and its thickness shall not be less thanthe maximum thickness of the forgings represented.
24、If aforging is tested, the tests must represent the maximum sectionthickness in the lot. All test specimens shall be located at themid-plane of the thickness and, the mid length position of thegauge length for tension test specimens, or the notch of theCharpy V-notch impact test specimens shall be a
25、t least T fromany second surface of the production forging or test block,where T equals the maximum heat treated thickness of theforging.7.3 Number of Tests and Retests:7.3.1 Number of Tests, and Test Temperature:7.3.1.1 One room-temperature tension test and one set ofthree Charpy V-notch specimens
26、shall be made to represent themaximum section from each heat in each heat-treatmentcharge. Impact tests shall be conducted at the temperaturespecified on the order, but no higher than 32F 0C.7.3.1.2 One grain size test shall be made from each heat.TABLE 1 Chemical RequirementsElement Composition, %G
27、rade AAGrade EAGrade FACarbon0.150.21 0.120.20 0.100.20Manganese0.801.10 0.400.70 0.601.00Phosphorus, max 0.025 0.025 0.025Sulfur, max 0.025 0.025 0.025Silicon0.400.80 0.200.35 0.150.35Nickel. . . . . . 0.701.00Chromium0.500.80 1.402.00 0.400.65Molybdenum0.180.28 0.400.60 0.400.60Vanadium.B0.030.08T
28、itanium. . . 0.040.10 . . .Zirconium0.050.15 . . . . . .Copper. . . 0.200.40 0.150.50Boron 0.0025 max 0.00150.005 0.0020.006ASimilar to Specification A517/A517M Grades A, E, and F, respectively.BMay be substituted for part or all of titanium content on a one for one basis.TABLE 2 Tensile Requirement
29、sUp to 212 in.65 mm, inclOver 212 in.to4in.65 to 100 mm, inclTensile strength, psi (MPa) 115 000 to 135 000 105 000 to 135 000795 to 930 725 to 930Yield strength (0.2 % offset), min, 100 000 690 90 000 620psi MPaElongation in 2 in. 50 mm, 18 17min, %Reduction of area, min, % 45 40TABLE 3 Charpy Impa
30、ct Test RequirementsAll Grades and Thicknesses 15 mils (0.015 in) 0.38 mmAAMinimum value for each of three specimens. See 7.3.3.A592/A592M 10 (2015)27.3.2 Retests of Tension SpecimensIf the results of tensiontests do not conform to the requirements specified, retests arepermitted, as outlined in Tes
31、t Methods and Definitions A370and Specification A788/A788M.7.3.3 Retests of Impact Specimens:7.3.3.1 If the lateral expansion value for one specimen isbelow 0.015 in. 0.38 mm but not below 0.010 in. 0.25 mmand the average equals or exceeds 0.015 in. 0.38 mm, a retestof three additional specimens may
32、 be made. Each of the threeretest specimens must equal or exceed the specified minimumvalue of 0.015 in. 0.38 mm.7.4 Test MethodsTension and impact tests shall be madein accordance with the latest issue of Test Methods andDefinitions A370.8. Repair Welding8.1 Repair welding of forgings may be permit
33、ted but only atthe option of the purchaser. Such repair welds shall be made inaccordance with Section IX of the ASME Boiler and PressureVessel Code.9. Test Reports9.1 The certification requirements of Specification A788/A788M shall apply.10. Product Marking10.1 Each forging shall be identified in ac
34、cordance with theMarking Section of Specification A788/A788M.11. Keywords11.1 high-strength low-alloy steel; pressure vessel service;quenched and tempered steel; steel forgingsalloyASTM International takes no position respecting the validity of any patent rights asserted in connection with any item
35、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 responsibility.This standard is subject to revision at any time by the responsible technical commit
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37、ting 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 address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive,
38、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), 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:/ 10 (2015)3
