ASTM_B_408_-_06_2016.pdf

Designation:B40806(Reapproved 2016)Standard Specification forNickel-Iron-Chromium Alloy Rod and Bar1This standard is issued under the fixed designation B408;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.1.Scope1.1 This specification2covers UNS N08120,UNS N08800,UNS N08810,UNS N08811,3and UNS N08890 in the form ofhot-worked and cold-worked rod and bar.Alloy UNS N08800is normally employed in service temperatures up to andincluding 1100F(593C).Alloys UNS N08120,UNSN08810,UNS N08811,and UNS N08890 are normally em-ployed in service temperatures above 1100F(593C)whereresistance to creep and rupture is required,and they areannealed to develop controlled grain size for optimum proper-ties in this temperature range.1.2 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.1.3 This standard does 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 appropriateSafety Data Sheet(SDS)for this product/material as providedby the manufacturer,to establish appropriate safety and healthpractices,and determine the applicability of regulatory limi-tations prior to use.2.Referenced Documents2.1 ASTM Standards:4B880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel,Nickel Alloys andCobalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE112 Test Methods for Determining Average Grain SizeE1473 Test Methods for Chemical Analysis of Nickel,Co-balt and High-Temperature Alloys3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bar,nmaterial of rectangular(flats),hexagonal,orsquare solid section up to and including 10 in.(254 mm)inwidth and18in.(3.2 mm)and over in thickness in straightlengths.3.1.1.1 DiscussionHot-worked rectangular bar in widths10 in.(254 mm)and under may be furnished as hot-rolled platewith sheared or cut edges in accordance with SpecificationB408,provided the mechanical property requirements ofSpecification B408 are met.3.1.2 rod,nmaterial of round solid section furnished instraight lengths.4.Ordering Information4.1 Orders for material to this specification should includeinformation with respect to the following:4.1.1 ASTM designation,and year of issue.4.1.2 Alloy designation or UNS number.4.1.3 SectionRod(round)or bar(square,hexagonal,orrectangular).4.1.4 DimensionsDimensions including length(Section 8,Tables 1-4 incl).4.1.5 Condition(Table 5 and Appendix X1).4.1.6 Finish(Appendix X1).4.1.7 Quantity(feet or number of pieces).4.1.8 CertificationState if certification or a report of testresults is required(Section 16).4.1.9 Samples for Product(Check)AnalysisState whethersamples for product(check)analysis should be furnished.4.1.10 Purchaser InspectionIf purchaser wishes to wit-ness tests or inspection of material at place of manufacture,thepurchase order must so state indicating which test or inspec-tions are to be witnessed.5.Materials and Manufacture5.1 Heat TreatmentThe final heat treatment of UNSN08120 shall be 2150F(1177C)minimum,UNS N08810,1This 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 June 1,2016.Published June 2016.Originallyapproved in 1957.Last previous edition approved in 2011 as B408 06(2011).DOI:10.1520/B0408-06R16.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-408 in Section II of that Code.3New designations established in accordance with Practice E527 andSAE J1086,Practice for Numbering Metals and Alloys(UNS).4For 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 standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2050F(1121C)minimum,UNS N08811,and UNS N08890,2100F(1149C)minimum.6.Chemical Composition6.1 The material shall conform to the composition limitsspecified in Table 6.6.2 If a product(check)analysis is performed by thepurchaser,the material shall conform to the product(check)analysis variations in Specification B880.7.Mechanical Properties and Other Requirements7.1 Mechanical PropertiesThe material shall conform tothe mechanical properties specifi