ASTM_B_672_-_02_2013.pdf

Designation:B67202(Reapproved 2013)Standard Specification forNickel-Iron-Chromium-Molybdenum-Columbium StabilizedAlloy(UNS N08700)Bar and Wire1This standard is issued under the fixed designation B672;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 Thisspecificationcoversnickel-iron-chromium-molybdenum-columbium stabilized alloy(UNS N08700)*bar.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 appropriateMaterial Safety Data Sheet(MSDS)for this product/materialas provided by the manufacturer,to establish appropriatesafety and health practices,and determine the applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsB880 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 SpecificationsE1473 Test Methods for Chemical Analysis of Nickel,Cobalt,and High-Temperature Alloys3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 The terms bar and wire as used in this specification aredescribed as follows:3.1.2 bars,nhot-finished rounds,squares,octagons,andhexagons:14in.(6.35 mm)and over in diameter or size.Hot-finished flats:14in.to 10 in.(254 mm),inclusive,in width,18in.(3.18 mm)and over in thickness.Cold-finished rounds,squares,octagons,hexagons,and shapes:over12in.(12.7 mm)in diameter or size.Cold-finished flats:38in.(9.52 mm)andover in width(see 3.1.2),18in.and over in thickness.(1)Thickness 0.125 in.to under 0.187 in.(3.18 mm to under4.76 mm)can be cold-rolled as well as bar.3.1.3 wire,nCold-finished only:round,square,octagon,hexagon,and shape wire,12in.and under in diameter or size.Cold-finished only:flat wire,316in.(4.76 mm)to under 0.375in.(9.52 mm)in width,0.010 in.(0.254 mm)to under316in.thickness.4.Ordering Information4.1 Orders for material under this specification shouldinclude the following information:4.1.1 Quantity(weight or number of pieces).4.1.2 Name of material or UNS N08700.4.1.3 Form(bar).4.1.4 Dimensions.4.1.5 Finish.4.1.6 ASTM designation and year of issue.4.1.7 Corrosion TestState if intergranular corrosion test isrequired(Supplementary Requirements).4.1.8 Certification or Test ReportsState if certification ortest reports are required(Section 14).NOTE1A typical ordering description is as follows:200 bars,UNSN08700,1 in.(25.4 mm)round by 10 to 14 ft(3.0 to 4.3 m),centerlessground,ASTM B672 dated_.5.Materials and Manufacture5.1 Heat TreatmentThe final treatment shall be a solutionanneal.Straightening or cold finishing,or both,may beperformed after the final solution annealing operation.Colddrawing to more than a minor sizing reduction(preferredmaximum 5%in area)after final solution annealing is notrecommended.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.Published February 2013.Originallyapproved in 1974.Last previous edition approved in 2007 as B672 02(2007).DOI:10.1520/B0672-02R13.*New designation established in accordance with ASTM E527 and SAE J1086,Practice for Numbering Metals and Alloys(UNS).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 standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 NOTE2The recommended solution anneal consists of heating to aminimum temperature of 2000F(1090C)and cooling rapidly to roomtemperature.6.Chemical Composition6.1 Heat analysis,on samples in accordance with 11.2,shallconform to the requirements as to chemical compositionprescribed in Table 1.6.2 If a product analysis is performed by the purchaser,thematerial shall conform to the composition limits within theproduct analysis variation prescribed in Specification B880.7.Mechanical Properties7.1 The material shall conform to the requirements as to themechanical property prescribed in Table 2.8.Dimensi