1、Designation: B672 02 (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
2、 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 specification covers nickel-iron-chromium-molybdenum-columbium stabilized allo
3、y (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 co
4、ncerns, 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
5、 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
6、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. Termino
7、logy3.1 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:14 in. (6.35 mm) and over in diameter or size.Hot-finished flats:14 in. to 10 in. (254 mm), inclu
8、sive, in width,18 in. (3.18 mm) and over in thickness. Cold-finished rounds,squares, octagons, hexagons, and shapes: over12 in. (12.7 mm)in diameter or size. Cold-finished flats:38 in. (9.52 mm) andover in width (see 3.1.2),18 in. and over in thickness.(1) Thickness 0.125 in. to under 0.187 in. (3.1
9、8 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,12 in. and under in diameter or size.Cold-finished only: flat wire,316 in. (4.76 mm) to under 0.375in. (9.52 mm) in width, 0.010 in. (0.254 mm) to under316 in.thick
10、ness.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 Corrosio
11、n TestState if intergranular corrosion test isrequired (Supplementary Requirements).4.1.8 Certification or Test ReportsState if certification ortest reports are required (Section 14).NOTE 1A typical ordering description is as follows: 200 bars, UNSN08700, 1 in. (25.4 mm) round by 10 to 14 ft (3.0 to
12、 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 (preferre
13、dmaximum 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.
14、 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, vis
15、it 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 19428-29
16、59. United States1NOTE 2The 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 compositionprescri
17、bed 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 pr
18、escribed in Table 2.8. Dimensions and Permissible Variations8.1 BarBars shall conform to the variations in dimensionsprescribed in Tables 3-11, inclusive, as applicable.9. Workmanship, Finish, and Appearance9.1 The product shall be uniform in quality and condition,smooth, commercially straight or fl
19、at, and free of injuriousimperfections.10. Sampling10.1 LotDefinition:10.1.1 A lot for chemical analysis shall consist of one heat.10.1.2 A lot for mechanical properties or corrosion testing(Supplementary Requirement S1) shall consist of all materialfrom a heat and cross-sectional size, heat treated
20、 by the samepractice.10.2 Test Material Selection:10.2.1 Chemical AnalysisA representative sample fromeach lot shall be taken during pouring or subsequent process-ing.10.2.1.1 Product Check Analysis shall be wholly the respon-sibility of the purchaser.10.2.2 Mechanical Properties and Corrosion Test
21、(Supple-mentary Requirement S1)Samples of the material to providetest specimens shall be taken from such locations in each lot asto be representative of that lot.11. Number of Tests11.1 Chemical AnalysisOne test per lot.11.2 Mechanical Properties and Corrosion Test (Supple-mentary Requirement S1)One
22、 test per lot.12. Test Methods12.1 Determine the chemical composition, mechanicalproperties, and corrosion resistance of the material as enumer-ated in this specification, in case of disagreement, in accor-dance with the following methods:TestASTMDesignationCorrosion test (Supplementary Requirement
23、S1) A262, Practice CChemical analysis E1473ATension E8Rounding procedure E29AIron shall be determined arithmetically by difference.13. Rejection and Rehearing13.1 Material that fails to conform to the requirements ofthis specification may be rejected. Rejection should be reportedto the producer or s
24、upplier promptly and in writing. In case ofdissatisfaction with the results of the test, the producer orsupplier may make claim for a rehearing.14. Certification14.1 When specified in the purchase order or contract, amanufacturers certification shall be furnished to the purchaserstating that materia
25、l has been manufactured, tested, and in-spected in accordance with this specification, and that the testresults on representative samples meet specification require-ments. When specified in the purchase order or contract, areport of the test results shall be furnished.15. Product Marking15.1 Each bu
26、ndle, box, or bar shall be properly tagged withmetal tags showing heat number, UNS number, condition,specification number, and size to assure proper identification.16. Packaging and Package Marking16.1 Bars shall be bundled or boxed in such a manner as toassure safe delivery to their destination whe
27、n properly trans-ported by any common carrier.17. Keywords17.1 bar; nickel-iron-chromium-molybdenum-columbium;UNS N08700TABLE 1 Chemical RequirementsElement Composition, %Nickel 24.0 to 26.0Iron remainderAChromium 19.0 to 23.0Molybdenum 4.3 to 5.0Columbium 8 carbon to 0.40Carbon, max 0.04Silicon, ma
28、x 1.00Manganese, max 2.00Phosphorus, max 0.040Sulfur, max 0.030Copper, max 0.50ADetermined arithmetically by difference.B672 02 (2013)2TABLE 2 Mechanical Property RequirementsConditionMaterialDimensions, in.TestDirectionTensile Strength,min, ksi (MPa)Yield Strength(0.2 % Offset),min, ksi (MPa)Elonga
29、tion in 2 in.or 50.8 mm,or 4 D,min,%Reduction ofArea, min,%Annealed, hot-finishedor cold-finishedAll Longitudinal 80 (550) 35 (240) 30.0 50.0Annealed, hot-finishedor cold-finishedWidths, 3 and overATransverse 80 (550) 35 (240) 25.0 40.0AIf the material diameter or width is over 3 in. (76.2 mm), mate
30、rial may be tensile tested in the transverse direction.TABLE 3 Permissible Variations in Size of Hot-Rolled Round and Square BarsPermissible Variations from Specified Size,in. (mm)Out-of-RoundAor Out-of-Square,Bin. (mm)Over Under0.250 (6.35) to 0.312 (7.94), inclC,DEEEOver 0.312 (7.94) to 0.438 (11.
31、11), inclC,D0.006 (0.15) 0.006 (0.15) 0.009 (0.23)Over 0.438 (11.11) to 0.625 (15.88), inclC,D0.007 (0.18) 0.007 (0.18) 0.010 (0.25)Over 0.625 (15.88) to 0.875 (22.22), incl 0.008 (0.20) 0.008 (0.20) 0.012 (0.30)Over 0.875 (22.22) to 1.000 (25.40), incl 0.009 (0.23) 0.009 (0.23) 0.013 (0.33)Over 1.0
32、00 (25.40) to 1.125 (28.58), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)Over 1.125 (28.58) to 1.250 (31.75), incl 0.011 (0.28) 0.011 (0.28) 0.016 (0.41)Over 1.250 (31.75) to 1.375 (34.92), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)Over 1.375 (34.92) to 1.500 (38.10), incl 0.014 (0.36) 0.014 (0.36)
33、0.021 (0.53)Over 1.500 (38.10) to 2.000 (50.80), incl 0.016 (0.40) 0.016 (0.40) 0.023 (0.58)Over 2.000 (50.80) to 2.500 (63.50), incl 0.031 (0.79) 0 0.023 (0.58)Over 2.500 (63.50) to 3.500 (88.90), incl 0.047 (1.19) 0 0.035 (0.89)Over 3.500 (88.90) to 4.500 (114.30), incl 0.063 (1.59) 0 0.046 (1.17)
34、Over 4.500 (114.30) to 5.500 (139.70), incl 0.078 (1.98) 0 0.058 (1.47)Over 5.500 (139.70) to 6.500 (165.10), incl 0.125 (3.18) 0 0.070 (1.78)Over 6.500 (165.10) to 8.000 (203.20), incl 0.156 (3.97) 0 0.085 (2.18)AOut-of-round is the difference between the minimum diameters of the bar, measured at t
35、he same cross section.BOut-of-square section is the difference in the two dimensions at the same 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 of 0.250 to 0.312 in. (6.35) to 7.94 mm), inclusive.
36、Size tolerances have not been evolved for roundsections in the size range of 0.250 in. to approximately 0.625 in. (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 bar mills.ESq
37、uares in this size are not produced as hot-rolled products.TABLE 4 Permissible Variations in Size of Hot-Rolled Hexagonal and Octagonal BarsSpecified Sizes Measured Between OppositeSides, in. (mm)Permissible Variations from Specified Size,in. (mm)Maximum Difference in3 Measurements for Hex-agons onl
38、y, in. (mm)Over Under0.250 (6.35) to 0.500 (12.70), incl 0.007 (0.18) 0.007 (0.18) 0.011 (0.28)Over 0.500 (12.70) to 1.000 (25.40), incl 0.010 (0.25) 0.010 (0.25) 0.015 (0.38)Over 1.000 (25.40) to 1.500 (38.10), incl 0.021 (0.53) 0.021 (0.53) 0.025 (0.64)Over 1.500 (38.10) to 2.000 (50.80), incl 0.0
39、31 (0.79) 0.031 (0.79) 0.031 (0.79)Over 2.000 (50.80) to 2.500 (63.50), incl 0.047 (1.19) 0.047 (1.19) 0.047 (1.19)Over 2.500 (63.50) to 3.500 (88.90), incl 0.063 (1.59) 0.063 (1.59) 0.063 (1.59)B672 02 (2013)3TABLE 5 Permissible Variations in Thickness and Width For Hot-Rolled Flat BarsSpecified Wi
40、dth, in.(mm)Permissible Variations in Thickness for Thickness Given, in. (mm)0.125 (3.18) to 0.500 (12.70),inclOver 0.500 (12.70) to 1.000(25.40), inclOver 1.000 (25.40) to 2.000(50.80), inclOver Under Over Under Over UnderTo 1.000 (25.40), incl 0.008 (0.20) 0.008 (0.20) 0.010 (0.25) 0.010 (0.25)Ove
41、r 1.000 (25.40) to 2.000(50.80), incl0.012 (0.30) 0.012 (0.30) 0.015 (0.38) 0.015 (0.38) 0.031 (0.79) 0.031 (0.79)Over 2.000 (50.80) to 4.000(101.60), incl0.015 (0.38) 0.015 (0.38) 0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)Over 4.000 (101.60) to 6.000(152.40), incl0.015 (0.38) 0.015 (0.38)
42、0.020 (0.51) 0.020 (0.51) 0.031 (0.79) 0.031 (0.79)Over 6.000 (152.40) to 8.000(203.20), incl0.016 (0.41) 0.016 (0.41) 0.025 (0.41) 0.025 (0.41) 0.031 (0.79) 0.031 (0.79)Over 8.000 (203.20) to 10.000(254.00), incl0.021 (0.53) 0.021 (0.53) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79) 0.031 (0.79)Over 2.000
43、 (50.80) to 4.000(101.60), inclOver 4.000 (101.60) to 5.000(152.40), inclOver 6.000 (152.40) to 8.000(203.20), inclOver Under Over Under Over UnderTo 1.000 (25.40), inclOver 1.000 (25.40) to 2.000(50.80), incl.Over 2.000 (50.80) to 4.000(101.60), incl0.062 (1.57) 0.031 (0.79) . . . .Over 4.000 (101.
44、60) to 6.000(152.40), incl0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) . .Over 6.000 (152.40) to 8.000(203.20), incl0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) 0.125 (3.18) 0.156 (3.96)Over 8.000 (203.20) to 10.000(254.00), incl0.062 (1.57) 0.031 (0.79) 0.093 (2.36) 0.062 (1.57) 0.125
45、 (3.18) 0.156 (3.96)Specified Width, in. (mm)Permissible Variations in Width, in. (mm)Over UnderTo 1.000 (25.40), incl 0.015 (0.38) 0.015 (0.38)Over 1.000 (25.40) to 2.000 (50.80), incl 0.031 (0.79) 0.031 (0.79)Over 2.000 (50.80) to 4.000 (101.60), incl 0.062 (1.57) 0.031 (0.79)Over 4.000 (101.60) t
46、o 6.000 (152.40), incl 0.093 (2.36) 0.062 (1.57)Over 6.000 (152.40) to 8.000 (203.20), incl 0.125 (3.18) 0.156 (3.96)Over 8.000 (203.20) to 10.000 (254.00), incl 0.156 (3.96) 0.187 (4.75)TABLE 6 Permissible Variations in Size of Cold-FinishedRound BarsSpecified Size, in. (mm)Permissible Variations f
47、romSpecified Size, in. (mm)A,BOver UnderOver 0.500 (12.70) to 1.000(25.40), excl0.002 (0.05) 0.002 (0.05)1.000 (25.40) to 1.500(38.10), excl0.0025 (0.06) 0.0025 (0.06)1.500 (38.10) to 4.000(101.60), inclC0.003 (0.08) 0.003 (0.08)AUnless otherwise specified, size tolerances are over and under as show
48、n inTable 7. When required, however, they may be specified all over and nothingunder, or all under and nothing over, or any combination of over and under, if thetotal spread in size tolerance for a specified size is not less than the total spreadshown in the table.BWhen it is necessary to heat treat
49、 or heat treat and pickle after cold finishing, sizetolerances are double those shown in the table.CCold-finished bars over 4 in. (101.60 mm) in diameter are produced; sizetolerances for such bars have not been evolved.TABLE 7 Permissible Variations in Size of Cold-FinishedHexagonal, Octagonal, and Square BarsSpecified Size, in. (mm)Permissible Vari-ations from SpecifiedSize, in. (mm)AOver UnderOver 0.500 (12.70) to 1.000 (25.40),incl0 0.004 (0.10)Over 1.000 (25.40) to 2.000 (50.80),incl0 0.006 (0.15)Over 2.000 (50.80) to 3.000 (76.20),incl
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