1、Designation: B818 03 (Reapproved 2013)Standard Specification forCobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy(UNS R31233) Plate, Sheet and Strip1This standard is issued under the fixed designation B818; the number immediately following the designation indicates the year oforiginal adoption or, in
2、 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.1. Scope1.1 This specification covers cobalt-chromium-nickel-molybdenum-tungsten alloy UNS R312
3、33 in the form of rolledplate, sheet, and strip for wear applications and generalcorrosion service.1.2 The following products are covered under this specifi-cation:1.2.1 Sheet and StripHot or cold rolled, annealed anddescaled unless solution-annealing is performed in an atmo-sphere yielding a bright
4、 finish.1.2.2 PlateHot rolled, solution-annealed, and descaled.1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does
5、 not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateMaterial Safety Data Sheet (MSDS) for this product/materialas provided by the manuf
6、acturer, to establish appropriatesafety and health practices, and determine the applicability ofregulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B906 Specification for General Requirements for Flat-Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip3. Terminology3.1
7、 Definitions of Terms Specific to This Standard:3.1.1 platematerial316 in. (4.76 mm) and over in thick-ness.3.1.2 sheet and stripmaterial under316 in. (4.76 mm) inthickness.4. General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of Specifi
8、cation B906unless otherwise provided herein.5. Ordering Information5.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Examples of such requirements include, but arenot limited to, the following:5.1.1 Alloy.5.1.2 D
9、imensionsThickness (in decimals of an inch),width, and length (inch or fraction of an inch).5.1.3 CertificationState if a report of test results is re-quired (see Specification B906, Section 21).5.1.4 Optional RequirementPlate; state how plate is to becut (see Specification B906, Table A2.3).5.1.5 P
10、urchase InspectionState which tests or inspectionsare to be witnessed (see Specification B906, Section 18).5.1.6 Samples, for Product (Check) AnalysisState whethersamples should be furnished (see Specification B906, Section7.2.2).6. Chemical Composition6.1 The material shall conform to the requireme
11、nts as tochemical composition prescribed in Table 1.6.2 If a product (check) analysis is made by the purchaser,the material shall conform to the requirements specified inTable 1 and Specification B906.7. Mechanical Properties and Other Requirements7.1 Tensile PropertiesThe material shall conform to
12、theroom temperature tensile properties prescribed in Table 2.8. Dimensions, Mass, and Permissible Variations8.1 Thickness:1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Co
13、balt and Their Alloys.Current edition approved Feb. 1, 2013. Published February 2013. Originallyapproved in 1991. Last previous edition approved in 2008 as B818 03 (2008).DOI: 10.1520/B0818-03R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at
14、 serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States18.1.1 Sheet and StripThe thickness shall be measure
15、dwith the micrometer spindle38 in. (9.525 mm) or more fromany edge for material 1 in. (25.4 mm) or over in width and atany place on material under 1 in. in width.8.2 Length:8.2.1 Sheet and StripSheet and strip may be ordered to cutlengths, in which case a variation of18 in. (3.175 mm) over thespecif
16、ied length shall be permitted, with a “0” minus tolerance.8.3 Straightness:8.3.1 The edgewise curvature (depth of chord) of flat sheet,strip, and plate shall not exceed the product of 0.05 in.multiplied by the length in feet (0.04 mm multiplied by thelength in centimetres).8.3.2 Straightness for coi
17、led strip is subject to agreementbetween the manufacturer and the purchaser.8.4 Squareness (Sheet)For sheets of all thicknesses andwidths of 6 in. (152.4 mm) or more, the angle between adjacentsides shall be 90 6 0.15 (116 in. in 24 in. or 2.6 mm/m).8.5 FlatnessPlate, sheet, and strip shall be comme
18、rciallyflat.8.6 Edges:8.6.1 Plates shall have sheared, abrasive cut, or plasmatorch-cut edges as specified.8.6.2 Sheet and strip shall have sheared or slit edges.9. Product Marking9.1 Each plate, sheet, or strip shall be marked on one facewith the specification number, heat number, manufacturersiden
19、tification, and size. The markings shall have no deleteriouseffect on the material or its performance and shall be suffi-ciently stable to withstand normal handling.9.2 Each bundle or shipping container shall be marked withthis specification number; the size; gross, tare, and net weight;consignor an
20、d consignee address; contract or order number;and such other information as may be defined in the contract ororder.10. Keywords10.1 plate; sheet; strip; R31233APPENDIX(Nonmandatory Information)X1. HEAT TREATMENTX1.1 Proper heat treatment during or subsequent to fabrica-tion is necessary for optimum
21、performance and the manufac-turer shall be consulted for details.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 su
22、ch 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 invit
23、ed 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
24、 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
25、 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 ASTM website (www.astm.org/COPYRIGHT/).TAB
26、LE 1 Chemical RequirementsElement Composition Limits, %Boron 0.015 maxCarbon 0.020.10Chromium 23.527.5Iron 1.05.0Manganese 0.11.5Molybdenum 4.06.0Nitrogen 0.030.12Nickel 7.011.0Phosphorous 0.030 maxSulfur 0.020 maxSilicon 0.051.00Tungsten 1.03.0Cobalt RemainderAASee Specification B906.TABLE 2 Mechanical Property RequirementsTensile Strength, min, ksi (MPa) 130 (896)Yield Strength, min, ksi (MPa) 55 (379)Elongation in 2 in. (50.8 mm) or 4DAmin % 15AD refers to the diameter of the tension specimen.B818 03 (2013)2
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