1、Designation:B81803(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 the ca
2、se 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 R31233 in the for
3、m 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 finish.1.2.2 Pl
4、ateHot 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 not purport to add
5、ress 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 manufacturer,to establish app
6、ropriatesafety 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 Definitions of Terms Specific
7、 to This Standard:3.1.1 platematerial316in.(4.76 mm)and over in thick-ness.3.1.2 sheet and stripmaterial under316in.(4.76 mm)inthickness.4.General Requirements4.1 Material furnished under this specification shall con-form to the applicable requirements of Specification B906unless otherwise provided
8、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 DimensionsThickness(in decimals of an inch
9、),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 Purchase InspectionState which tests or inspection
10、sare 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 requirements as tochemical composition prescribed in Table 1.6.2 I
11、f 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 theroom temperature tensile properties prescribed in Table 2
12、.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 Cobalt and Their Alloys.Current edition approved Feb.1,2013.Publi
13、shed 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 serviceastm.org.For Annual Book of ASTMStandards volume information,refe
14、r 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 States1 8.1.1 Sheet and StripThe thickness shall be measuredwith the micrometer spindle38in.(9.525 mm)or more fromany edge for material 1
15、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 of18in.(3.175 mm)over thespecified length shall be permitted,with a“0”minus tolerance.8.3 Straightness:8.3.1 The edgewis
16、e 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 coiled 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(116in.in 24 in.or 2.6 mm/m).8.5 FlatnessPlate,sheet,and strip shall be commerciall