1、Designation:B47307(Reapproved 2013)Standard Specification forUNS N08020,UNS N08024,and UNS N08026 Nickel AlloyBar and Wire1This standard is issued under the fixed designation B473;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the y
2、ear 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 N08020,UNS N08026,and UNS N08024 bar and wire other than required forreforging.1.2 The
3、 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 wit
4、h 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 th
5、e applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsB880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel,Nickel Alloys andC
6、obalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE1473 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
7、:3.1.2 bars,nhot-finished rounds,squares,octagons,andhexagons:14in.(6.35 mm)and over in diameter or size.Hot-finished flats:14to 10 in.(254 mm),inclusive,in width,18in.(3.175 mm)and over in thickness.Cold-finished rounds,squares,octagons,hexagons,and shapes:over12in.(12.7 mm)in diameter or size.Cold
8、-finished flats:38in.(9.525 mm)andover in width(see Discussion(1),18in.and over in thickness(see Discussion(2).3.1.2.1 Discussion(1)Widths less than38in.(9.525 mm)and thicknesses less than316in.(4.75 mm)are generallydescribed as flat wire.3.1.2.2 Discussion(2)Thicknesses18in.(3.175 mm)tounder316in.(
9、4.75 mm)can be cold-rolled strip as well as bar.3.1.3 wire,ncold finished only:round,square,octagon,hexagon,and shape wire,12in.(12.7 mm)and under indiameter or size.Cold-finished only:flat wire,316in.(4.76mm)to under38in.(9.525 mm)in width,0.010 in.(0.254 mm)to under316in.in thickness.4.Ordering In
10、formation4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for the safe and satisfactoryperformance of material ordered under this specification.Examples of such requirements include,but are not limited to,the following:4.1.1 Quantity(weight or number of pie
11、ces),4.1.2 Name of material or UNS number,4.1.3 Form(bar or wire),4.1.4 Dimensions,4.1.5 Condition,4.1.6 Finish,4.1.7 ASTM designation and year of issue,4.1.8 Inspection(15.1),4.1.9 Supplementary requirements,if any,and4.1.10 If possible,the intended end use.NOTE1A typical ordering description is as
12、 follows:200 bars,UNSN08020,1 in.(25.4 mm)round by 10 to 14 ft(3.0 to 3.6 m),centerlessground,Specification B473.1This 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
13、Their Alloys.Current edition approved Oct.1,2013.Published October 2013.Originallyapproved in 1968.Last previous edition approved in 2007 as B473 07.DOI:10.1520/B0473-07R13.2For ASME Boiler and Pressure Vessel Code applications see related Specifi-cation SB-473 in Section II of that Code.3For refere
14、nced 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.*A Summary of Changes section appears at the end of this standardCopyright AS
15、TM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 5.Materials and Manufacture5.1 Heat TreatmentThe product of UNS N08020 alloyshall be furnished in the stabilized-annealed condition.Theproduct of UNS N08026 alloy shall be furnished in thesolution-annea
16、led condition.The product of UNS N08024alloy shall be furnished in the annealed condition.NOTE2The recommended annealing temperatures all followed byquenching in water or rapidly cooling by other means are as follows:1700to 1850F(927 to 1010C)for UNS N08020,2050 to 2200F(1121 to1204C)for UNS N08026,and 1925 to 1975F(1052 to 1079C)for UNSN08024.6.Chemical Composition6.1 The material shall conform to the requirements as tochemical composition prescribed in Table 1.6.2 If a product(check)analysis i
