1、Designation: B473 07 (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 revisio
2、n, 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 N08020, UNS N08026,and UNS N08024 bar and wire other than required forref
3、orging.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 an
4、y, 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 pract
5、ices, and determine the 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 Ni
6、ckel, Nickel Alloys andCobalt 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 specificati
7、on aredescribed as follows:3.1.2 bars, nhot-finished rounds, squares, octagons, andhexagons:14 in. (6.35 mm) and over in diameter or size.Hot-finished flats:14 to 10 in. (254 mm), inclusive, in width,18in. (3.175 mm) and over in thickness. Cold-finished rounds,squares, octagons, hexagons, and shapes
8、: over12 in. (12.7 mm)in diameter or size. Cold-finished flats:38 in. (9.525 mm) andover in width (see Discussion (1),18 in. and over in thickness(see Discussion (2).3.1.2.1 Discussion(1) Widths less than38 in. (9.525 mm)and thicknesses less than316 in. (4.75 mm) are generallydescribed as flat wire.
9、3.1.2.2 Discussion(2) Thicknesses18 in. (3.175 mm) tounder316 in. (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,12 in. (12.7 mm) and under indiameter or size. Cold-finished only: flat wire,316 in. (4.76mm) to under38
10、 in. (9.525 mm) in width, 0.010 in. (0.254 mm)to under316 in. in thickness.4. Ordering Information4.1 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 require
11、ments include, but are not limited to,the following:4.1.1 Quantity (weight or number of pieces),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 requirement
12、s, if any, and4.1.10 If possible, the intended end use.NOTE 1A typical ordering description is as 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 M
13、etals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and 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
14、 and Pressure Vessel Code applications see related Specifi-cation SB-473 in Section II of that Code.3For 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 Do
15、cument Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15. Materials and Manufacture5.1 Heat TreatmentThe product of UNS N08020 alloyshall
16、 be furnished in the stabilized-annealed condition. Theproduct of UNS N08026 alloy shall be furnished in thesolution-annealed condition. The product of UNS N08024alloy shall be furnished in the annealed condition.NOTE 2The recommended annealing temperatures all followed byquenching in water or rapid
17、ly 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
18、.6.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the product (check)analysis variations prescribed in Specification B880.7. Condition7.1 Bars shall be furnished annealed and either hot finishedor cold finished. Strain-hardened material is available only
19、ascold finished.7.2 Wire will be furnished only as annealed and coldfinished.8. Mechanical Properties8.1 The material shall conform to the applicable require-ments as to mechanical properties prescribed in Table 2.9. Dimensions and Permissible Variations9.1 BarBars shall conform to the variations in
20、 dimensionsprescribed in Tables 3-11, inclusive, as applicable.9.2 WireWire shall conform to the permissible variationsin dimensions prescribed in Tables 12-16, inclusive, as appli-cable.10. Workmanship, Finish, and Appearance10.1 The product shall be uniform in quality and condition,smooth, commerc
21、ially straight or flat, and free of injuriousimperfections.11. Sampling11.1 Lot:11.1.1 A lot for chemical analysis shall consist of one heat.11.1.2 A lot for mechanical properties shall consist of allmaterial from the same heat, nominal diameter or thickness, ofeach heat-treatment charge.11.2 Test M
22、aterial Selection:11.2.1 Chemical AnalysisRepresentative samples shall betaken during pouring or subsequent processing.11.2.1.1 Check analysis shall be wholly the responsibility ofthe purchaser.11.2.2 Mechanical PropertiesSamples of the material toprovide test specimens shall be taken from such loca
23、tions ineach lot as to be representative of that lot.12. Number of Tests12.1 Chemical AnalysisOne test per lot.12.2 Mechanical PropertiesOne test per lot.13. Specimen Preparation13.1 Tension test specimens shall be taken from the materialafter final heat treatment, and shall be selected in the longi
24、tu-dinal direction. The tension test specimens shall conform to theappropriate sections of Test Methods E8.14. Test Methods14.1 The chemical composition and mechanical propertiesof the material as enumerated in this specification shall, in caseof disagreement, be determined in accordance with the fo
25、llow-ing methods:Test ASTM DesignationsChemical analysis E1473ATension E8AIron shall be determined arithmetically by difference.15. Inspection15.1 If specified, source inspection of the material by thepurchaser at the manufacturers plant shall be made as agreedupon between the purchaser and the manu
26、facturer as part of thepurchase contract.TABLE 1 Chemical RequirementsElementComposition, %UNS N08026 UNS N08020 UNS N08024Carbon, max 0.03 0.07 0.03Manganese, max 1.00 2.00 1.00Phosphorus, max 0.03 0.045 0.035Sulfur, max 0.03 0.035 0.035Silicon, max 0.50 1.00 0.50Nickel 33.00 to 37.20 32.00 to 38.0
27、0 35.00 to 40.00Chromium 22.00 to 26.00 19.00 to 21.00 22.50 to 25.00Molybdenum 5.00 to 6.70 2.00 to 3.00 3.50 to 5.00Copper 2.00 to 4.00 3.00 to 4.00 0.50 to 1.50Columbium (Nb) + tantalum . 8 carbon1.00 0.15 to 0.35Nitrogen 0.10 to 0.16 . .Iron remainderAremainderAremainderAABy difference.B473 07 (
28、2013)216. Rejection and Rehearing16.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejection should be reportedto the producer or supplier promptly and in writing. In case ofdissatisfaction with the results of the test, the producer orsupplier may make cla
29、im for a rehearing.17. Certification17.1 When specified in the purchase order or contract, aproducers or suppliers certification shall be furnished to thepurchaser that the material was manufactured, sampled, tested,and inspected in accordance with this specification and hasbeen found to meet the re
30、quirements. When specified in thepurchase order or contract, a report of the test results shall befurnished.18. Product Marking18.1 Each bundle or box shall be properly tagged with metaltags showing heat number, grade, condition, specificationnumber and size to assure proper identification.19. Packa
31、ging and Package Marking19.1 Bars or wire shall be bundled or boxed in such amanner as to assure safe delivery to their destination whenproperly transported by any common carrier.20. Keywords20.1 bar; UNS N08020; UNS N08024; UNS N08026; wireTABLE 2 Mechanical Property RequirementsAConditionDiameter
32、orThickness,in. (mm)Tensile Strength, min Yield Strength, minElongation in 2 in.(50.8 mm), min, %Reduction of area,min, %ksi MPa ksi MPaAnnealed, hot finished or coldfinishedAll 80 551 35 241 30.0B50.0Annealed, strain-hardened Up to 2 (50.8) incl 90 620 60 415 15.0 40.0AFor wire only, tensile streng
33、th 90 to 120.0 ksi (620 to 830 MPa); no requirements on yield strength, elongation, and reduction of area.BCold-finished shapes require only 15 %, minimum, elongation.TABLE 3 Permissible Variations in Size of Hot-Rolled Round and Square BarsPermissible Variations from Specified Size, in. (mm) Out-of
34、-RoundAorOut-of-Square,Bin. (mm)Over Under14 (6.35) to516 (7.94), inclC,DEEEOver516 (7.94) to716 (11.11), inclC,D0.006 (0.15) 0.006 (0.15) 0.009 (0.23)Over716 (11.11) to58 (15.88), inclC,D0.007 (0.18) 0.007 (0.18) 0.010 (0.25)Over58 (15.88) to78 (22.22), incl 0.008 (0.20) 0.008 (0.20) 0.012 (0.30)Ov
35、er78 (22.22) to 1 (25.40), incl 0.009 (0.23) 0.009 (0.23) 0.013 (0.33)Over 1 (25.40) to 118 (28.58), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)Over 118 (28.58) to 114 (31.75), incl 0.011 (0.28) 0.011 (0.28) 0.016 (0.41)Over 114 (31.75) to 138 (34.92), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)Over
36、 138 (34.92) to 112 (38.10), incl 0.014 (0.36) 0.014 (0.36) 0.021 (0.53)Over 112 (38.10) to 2 (50.80), incl164 (0.40)164 (0.40) 0.023 (0.58)Over 2 (50.80) to 212 (63.50), incl132 (0.79) 0 0.023 (0.58)Over 212 (63.50) to 312 (88.90), incl364 (1.19) 0 0.035 (0.89)Over 312 (88.90) to 412 (114.30), incl
37、116 (1.59) 0 0.046 (1.17) Over 412 (114.30) to 512 (139.70), incl564 (1.98) 0 0.058 (1.47)Over 512 (139.70) to 612 (165.10), incl18 (3.18) 0 0.070 (1.78)Over 612 (165.10) to 8 (203.20), incl532 (3.97) 0 0.085 (2.18)AOut-of-round is the difference between the maximum and minimum diameters of the bar,
38、 measured at the same cross section.BOut-of-square section is the difference in the two dimensions at the same cross section of a square bar, each dimension being the distance between opposite faces.CSize tolerances have not been evolved for rounds in the size range of14 to516 in. (6.35 to 7.94 mm),
39、 inclusive. Size tolerances have not been evolved for round sectionsin the size range of14 in. to approximately58 in. (6.35 to 15.88 mm) in diameter which are produced on rod mills in coils.DVariations in size of coiled product made on rod mills are greater than size tolerances for product made on b
40、ar mills.ESquares in this size are not produced as hot-rolled products. Editorially corrected.TABLE 4 Permissible Variations in Size of Hot-Rolled Hexagonal and Octagonal BarsSpecified Sizes MeasuredBetween Opposite Sides,in. (mm)Permissible Variations from Specified Size, in. (mm)Maximum Difference
41、 in3 Measurements forHexagonsonly, in. (mm)Over Under14 (6.35) to12 (12.70), incl 0.007 (0.18) 0.007 (0.18) 0.011 (0.28)Over12 (12.70) to 1 (25.40), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)Over 1 (25.40) to 112 (38.10), incl 0.021 (0.53) 0.021 (0.53) 0.025 (0.64)Over 112 (38.10) to 2 (50.80), inc
42、l132 (0.79)132 (0.79)132 (0.79)Over 2 (50.80) to 212 (63.50), incl364 (1.19)364 (1.19)364 (1.19)Over 212 (63.50) to 312 (88.90), incl116 (1.59)116 (1.59)116 (1.59)B473 07 (2013)3TABLE 5 Permissible Variations in Thickness and Width for Hot-Rolled Flat BarsSpecified Width, in. (mm)Permissible Variati
43、ons in Thickness for Thicknesses Given, in. (mm)18 (3.18) to12 (12.70), incl Over12 (12.70) to 1 (25.40), incl Over 1 (25.40) to 2 (50.80), inclOver Under Over Under Over UnderTo 1 (25.40), incl 0.008 (0.20) 0.008 (0.20) 0.010 (0.25) 0.010 (0.25) . .Over 1 (25.40) to 2 (50.80), incl 0.012 (0.30) 0.0
44、12 (0.30) 0.015 (0.38) 0.015 (0.38) 0.031 (0.79) 0.031 (0.79)Over 2 (50.80) to 4 (101.60), incl 0.015 (0.38) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)Over 4 (101.60) to 6 (152.40), incl 0.015 (0.38) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)Over 6 (152.40
45、) to 8 (203.20), incl 0.016 (0.41) 0.016 (0.41) 0.025 (0.64) 0.025 (0.64) 0.031 (0.79) 0.031 (0.79)Over 8 (203.20) to 10 (254.00), incl 0.021 (0.53) 0.021 (0.53) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79)Over 2 (50.80) to 4 (101.60), incl Over 4 (101.60) to 6 (152.40), incl Over 6 (152.40)
46、to 8 (203.20), inclOver Under Over Under Over UnderTo 1 (25.40), incl . . . . . .Over 1 (25.40) to 2 (50.80), incl . . . . . .Over 2 (50.80) to 4 (101.60), incl 0.062 (1.57) 0.031 (0.79) . . . .Over 4 (101.60) to 6 (152.40), incl 0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) . .Over 6 (152.40)
47、 to 8 (203.20), incl 0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) 0.125 (3.18) 0.156 (3.96)Over 8 (203.20) to 10 (154.00), incl 0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) 0.125 (3.18) 0.156 (3.96)Specified Width, in. (mm)Permissible Variations in Width, in. (mm)Over UnderTo 1 (25.40)
48、, incl 0.015 (0.38) 0.015 (0.38)Over 1 (25.40) to 2 (50.80), incl 0.031 (0.79) 0.031 (0.79)Over 2 (50.80) to 4 (101.60), incl 0.062 (1.57) 0.031 (0.79)Over 4 (101.60) to 6 (152.40), incl 0.093 (2.36) 0.062 (1.57)Over 6 (152.40) to 8 (203.20), incl 0.125 (3.18) 0.156 (3.96)Over 8 (203.20) to 10 (254.
49、00), incl 0.156 (3.96) 0.187 (4.75)TABLE 6 Permissible Variations in Size of Cold-Finished RoundBarsSpecified Size, in. (mm)Permissible Variations from SpecifiedSize, in. (mm)A,BOver UnderOver12 (12.70) to 1 (25.40), excl 0.002 (0.05) 0.002 (0.05)1 (25.40) to 112 (38.10), excl 0.0025 (0.06) 0.0025 (0.06)112 (38.10) to 4 (101.60), inclC0.003 (0.08) 0.003 (0.08)AUnless otherwise specified, size tolerances are over and under as shown in theabove table. When required, however, they
