1、Designation: A 176 99 (Reapproved 2004)Standard Specification forStainless and Heat-Resisting Chromium Steel Plate, Sheet,and Strip1This standard is issued under the fixed designation A 176; the number immediately following the designation indicates the year oforiginal adoption or, in the case of re
2、vision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 specificati
3、on 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 SpecificationsA 176 and A 240/A 240M have been rem
4、oved from this specification andmay now be supplied and purchased in compliance with SpecificationA 240/A 240M. The chemical and mechanical property requirements ofthese grades were identical in Specifications A 176 and A 240/A 240M atthe time of removal from Specification A 176.2. Referenced Docume
5、nts2.1 ASTM Standards:2A 240/A 240M Specification for Chromium andChromium-Nickel Stainless Steel Plate, Sheet, and Stripfor Pressure Vessels and for General ApplicationsA 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 480/A 480M Specification for General Requirements forF
6、lat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet, and StripE 527 Practice for Numbering Metals and Alloys (UNS)2.2 SAE Standard:3J1086 Practice for Unified Numbering for Metals and Al-loys (UNS)3. Chemical Composition3.1 The steel shall conform to the requirements as tochemical composition
7、specified in Table 1, and shall conformto applicable requirements specified in Specification A 480/A 480M.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 und
8、er this specification shall conform to the appli-cable requirements of the current edition of SpecificationA 480/A 480M.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 variati
9、ons,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
10、 Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved Sept. 1, 2004. Published September 2004. Originallyapproved in 1935. Last previous edition approved in 1999 as A 176 99.2For referenced
11、 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 standards Document Summary page onthe ASTM website.3Available from Society of Automotive Engineers (SAE), 400 CommonwealthDr.,
12、Warrendale, PA 15096-0001.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this
13、 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 year
14、s 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 committ
15、ee, 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
16、-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).TABLE 1 Chemical RequirementsAUNSDesigna
17、tionBTypeComposition, %Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Nitrogen Other ElementsCS40300 403 0.15 1.00 0.040 0.030 0.50 11.513.0 0.60 . . . . . .S42000 420 0.15 min 1.00 0.040 0.030 1.00 12.014.0 0.75 . . . Mo 0.50 maxS42200 422 0.200.25 0.501.00 0.025 0.025 0.50 11.012.5 0.5
18、01.00 . . . Mo 0.90-1.25V 0.20-0.30W 0.90-1.25S43100 431 0.20 1.00 0.040 0.030 1.00 15.017.0 1.252.50 . . . . . .S44200 442 0.20 1.00 0.040 0.040 1.00 18.023.0 0.60 . . . . . .S44600 446 0.20 1.50 0.040 0.030 1.00 23.027.0 0.75 0.25 . . .AMaximum unless range or minimum is indicated.BNew designation
19、 established in accordance with Practice E 527 and SAE J1086.CThe terms Columbium (Cb) and Niobium (Nb) both relate to the same element.TABLE 2 Mechanical Test RequirementsUNSDesignationTypeTensile Strength, min Yield Strength, minA Elongationin 2 in. or50 mm,min, %Hardness, maxBCold Bend,degCksi MP
20、a 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
21、 20.0 217 96 135AYield strength shall be determined by the offset method at 0.2 % in accordance with Test Methods and Definitions A 370. 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 o
22、r 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.A 176 99 (2004)2
