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ASTM A176 - 99 (2009).pdf

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ASTM A176 - 99 (2009).pdf

Designation A176 − 99 Reapproved 2009Standard Specification forStainless and Heat-Resisting Chromium Steel Plate, Sheet,and Strip1This standard is issued under the fixed designation A176; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers stainless and heat-resistingchromium steel plate, sheet, and strip available in a widevariety of surface finishes.1.2 The values stated in inch-pound units are to be regardedas the standard.NOTE 1Grades that were previously covered in both SpecificationsA176 and A240/A240M have been removed from this specification andmay now be supplied and purchased in compliance with SpecificationA240/A240M. The chemical and mechanical property requirements ofthese grades were identical in Specifications A176 and A240/A240M atthe time of removal from Specification A176.2. Referenced Documents2.1 ASTM Standards2A240/A240M Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for PressureVessels and for General ApplicationsA370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA480/A480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet, and StripE527 Practice for Numbering Metals and Alloys in theUnified Numbering System UNS2.2 SAE Standard3J1086 Practice for Unified Numbering for Metals and AlloysUNS3. Chemical Composition3.1 The steel shall conform to the requirements as tochemical composition specified in Table 1, and shall conformto applicable requirements specified in Specification A480/A480M.4. Mechanical Properties4.1 The material shall conform to the mechanical propertiesspecified in Table 2.5. General Requirements5.1 The following requirements for orders for materialfurnished under this specification shall conform to the appli-cable requirements of the current edition of SpecificationA480/A480M.5.1.1 Definitions,5.1.2 General requirements for delivery,5.1.3 Ordering information,5.1.4 Process,5.1.5 Special tests,5.1.6 Heat treatment,5.1.7 Dimensions and permissible variations,5.1.8 Workmanship, finish, and appearance,5.1.9 Number of tests/test methods,5.1.10 Specimen preparation,5.1.11 Retreatment,5.1.12 Inspection,5.1.13 Rejection and rehearing,5.1.14 Material test report, and5.1.15 Certification.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloysand is the direct responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved May 1, 2009. Published May 2009. Originallyapproved in 1935. Last previous edition approved in 2004 as A176 – 99 2004.DOI 10.1520/A0176-99R09.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standard’s Document Summary page onthe ASTM website.3Available from Society of Automotive Engineers SAE, 400 CommonwealthDr., Warrendale, PA 15096-0001, http//www.sae.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1Copyright by ASTM Intl all rights reserved;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 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 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 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 at the aboveaddress or at 610-832-9585 phone, 610-832-9555 fax, or serviceastm.org e-mail; or through the ASTM websitewww.astm.org. Permission rights to photocopy the standard may also be secured from the ASTM website www.astm.org/COPYRIGHT/.TABLE 1 Chemical RequirementsAUNSDesignationBTypeComposition, Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Nitrogen Other ElementsCS40300 403 0.15 1.00 0.040 0.030 0.50 11.5–13.0 0.60 . . . . . .S42000 420 0.15 min 1.00 0.040 0.030 1.00 12.0–14.0 0.75 . . . Mo 0.50 maxS42200 422 0.20–0.25 0.50–1.00 0.025 0.025 0.50 11.0–12.5 0.50–1.00 . . . Mo 0.90-1.25V 0.20-0.30W 0.90-1.25S43100 431 0.20 1.00 0.040 0.030 1.00 15.0–17.0 1.25–2.50 . . . . . .S44200 442 0.20 1.00 0.040 0.040 1.00 18.0–23.0 0.60 . . . . . .S44600 446 0.20 1.50 0.040 0.030 1.00 23.0–27.0 0.75 0.25 . . .AMaximum unless range or minimum is indicated.BNew designation established in accordance with Practice E527 and SAE J1086.CThe terms Columbium Cb and Niobium Nb both relate to the same element.DCarbon nitrogen 0.030 max.TABLE 2 Mechanical Test RequirementsUNSDesignationTypeTensile Strength, min Yield Strength, minA Elongationin 2 in. or50 mm,min, Hardness, maxBCold Bend,degCksi MPa ksi MPa Brinell Rockwell BS40300 403 70 485 30 205 25.0D217 96 180S42000 420 100E690 . . . . . . 15.0 217 96 . . .S42200 422 . . . . . . . . . . . . . . . 248 24Fnot requiredS43100 431 . . . . . . . . . . . . . . . 285 29Fnot requiredS44200 442 65 515 40 275 20.0 217 96 180S44600 446 65 515 40 275 20.0 217 96 135AYield strength shall be determined by the offset method at 0.2 in accordance with Test Methods and Definitions A370. Unless otherwise specified see 5.1.10, analternative method of determining yield strength may be based on a total extension under load of 0.5 .BEither Brinell or Rockwell B hardness is permissible.CBend test not required for steels thicker than 1 in. 25.4 mm unless specified by the purchaser.DMaterial 0.050 in. 1.27 mm and under in thickness shall have a minimum elongation of 20.0 .EMaximum. Type 420 is usually used in the heat-treated condition quenched and tempered to a specified range of hardness or tensile strength.FRockwell C scale.A176 − 99 20092Copyright by ASTM Intl all rights reserved;

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