1、Designation: B472 18Standard Specification forNickel Alloy Billets and Bars for Reforging1This standard is issued under the fixed designation B472; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、 in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This specification covers UNS N06002, UNS N06030,UNS N0
3、6035, UNS N06022, UNS N06200, UNS N10362,UNS N06230, UNS N06600, UNS N06617, UNS N06625,UNS N08020, UNS N08026, UNS N08024, UNS N08120,UNS N08926, UNS N08367, UNS N10242, UNS N10276,UNS N10665, UNS N10675, UNS N12160, UNS R20033,UNS N06059, UNS N06686, UNS N10629, UNS N08031,UNS N06045, UNS N06025,
4、UNS N06699, and UNS R305562billets and bars for reforging.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
5、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 est
6、ablish appropriate safety, health,and environmental practices, and determine the applicabilityof regulatory limitations prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles f
7、or theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:3A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsB880
8、 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel, Nickel Alloys andCobalt AlloysE1473 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 billets and bars, nterms b
9、illets and bars as used inthis specification shall be understood as billets and bars forreforging.4. Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification. Examples of such requirements include, bu
10、t arenot 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 billet),4.1.4 Dimensions,4.1.5 ASTM designation and year of issue,4.1.6 Inspection (12.1),4.1.7 CertificationState if certification or a report of testresults is req
11、uired (Section 14),4.1.8 Supplementary requirements, if any, and4.1.9 If possible, the intended end use.NOTE 1A typical ordering description is as follows: 10 000 lb (4536kg), UNS N08020, forging bar, 414 in. (107.95 mm) round, SpecificationB472.5. Materials and Manufacture5.1 The products shall be
12、hot worked from ingots by rolling,forging, extruding, hammering, or pressing.5.2 The products may be conditioned by chipping, grinding,or machining to remove injurious surface defects provided thedepth of conditioning does not exceed that which will affect thesurface condition or dimensions of the a
13、rticle to be forged fromthe bar or billet.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 Nov. 1, 2018. Published November
14、2018. Originallyapproved in 1968. Last previous edition approved in 2015 as B472 10 (2015).DOI: 10.1520/B0472-18.2Designation established in accordance with ASTM E527 and SAE J1086,Practice for Numbering Metals and Alloys (UNS).3For referenced ASTM standards, visit the ASTM website, www.astm.org, or
15、contact 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 StatesThis international s
16、tandard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.16.
17、 Chemical Composition6.1 The material shall conform to the requirements as tochemical composition prescribed in Table 1.6.2 If a product (check) analysis is performed by thepurchaser, the material shall conform to the requirementsspecified in Table 1 subject to the permissible tolerances inSpecifica
18、tion B880.7. Dimensions and Permissible Variations7.1 Billets shall conform to the shapes and dimensionsspecified by the purchaser within a permissible variation of65%.7.2 Bars shall conform to the shape and dimensions speci-fied by the purchaser within the permissible variations pre-scribed in Tabl
19、e 2.8. Workmanship, Finish, and Appearance8.1 The material shall be uniform in quality and free ofinjurious defects.9. Sampling9.1 LotA lot for chemical analysis shall consist of oneheat.9.2 Test Material Selection:9.2.1 Chemical AnalysisRepresentative samples shall betaken during pouring or subsequ
20、ent processing.10. Number of Tests10.1 Chemical AnalysisOne test per heat.11. Test Methods11.1 The chemical composition of the material as enumer-ated in this specification shall, in case of disagreement, bedetermined in accordance with the following methods:Test ASTM DesignationsChemical analysis E
21、1473AAIron or nickel shall be determined arithmetically by difference.12. Inspection12.1 If specified, source inspection of the material by thepurchaser at the manufacturers plant shall be made as agreedupon between the purchaser and the manufacturer as part of thepurchase contract.13. Rejection and
22、 Rehearing13.1 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 claim for a rehearing.14.
23、Certification14.1 When specified in the purchase order or contract, amanufacturers certification shall be furnished to the purchaserstating that material has been manufactured, tested, and in-spected in accordance with this specification, and that the testresults on representative samples meet speci
24、fication require-ments. When specified in the purchase order or contract, areport of the test results shall be furnished.15. Keywords15.1 bar; billet; UNS N06002; UNS N06030; UNS N06035;UNS N06022; UNS N06200; UNS N06230; UNS N10362;UNS N06600; UNS N06617; UNS N06625; UNS N08020;UNS N08024; UNS N080
25、26; UNS N01820; UNS N08367;UNS N08926; UNS N10242; UNS N10276; UNS N10665;UNS N10675; UNS N12160; UNS R20033; UNS R30556;UNS N06059; UNS N06686; UNS N10629; UNS N08031;UNS N06045; UNS N06025; UNS N06699B472 182TABLE 1 Chemical RequirementsElementComposition, %UNSN08026UNSN08020UNSN08024UNSN08367UNSN
26、08926UNSR20033Carbon, max 0.03 0.07 0.03 0.030 0.020 0.015Manganese, max 1.00 2.00 1.00 2.00 2.00 2.0Phosphorus, max 0.03 0.045 0.035 0.040 0.03 0.02Sulfur, max 0.03 0.035 0.035 0.030 0.01 0.01Silicon, max 0.50 1.00 0.50 1.00 0.50 0.50Nickel 33.0037.20 32.0038.00 35.0040.00 23.5025.50 24.0026.00 30.
27、033.0Chromium 22.0026.00 19.0021.00 22.5025.00 20.0022.00 19.0021.00 31.035.0Molybdenum 5.006.70 2.003.00 3.505.00 6.007.00 6.07.0 0.502.0Copper 2.004.00 3.004.00 0.501.50 0.75 max 0.51.5 0.301.20Columbium (Nb) +tantalum. 8 carbon1.00 0.150.35 . . .Nitrogen 0.100.16 . . 0.180.25 0.150.25 0.350.60Iro
28、nAremainder remainder remainder remainder balance balanceElementComposition, %UNSN06030UNSN06022UNSN06200UNSN10362UNSN10276UNSN10665UNSN10675UNSN06002UNSN06230Carbon, max 0.03 0.015 0.010 0.010 0.010 0.02 0.01 0.05-0.15 0.05-0.15Manganese, max 1.5 0.50 0.50 0.60 1.0 1.0 3.0 1.00 0.30-1.00Phosphorous
29、 max 0.04 0.02 0.025 0.025 0.04 0.04 0.030 0.04 0.030Sulfur, max 0.02 0.02 0.010 0.010 0.03 0.03 0.010 0.03 0.015Silicon, max 0.8 0.08 0.08 0.08 0.08 0.10 0.10 1.00 0.25-0.75Nickel remainder remainder remainder remainder remainder remainder 65.0 min remainderAremainderAChromium 28.0-31.5 20.0-22.5
30、22.0-24.0 13.8-15.6 14.5-16.5 1.0 max 1.0-3.0 20.5-23.0 20.0-24.0Molybdenum 4.0-6.0 12.5-14.5 15.0-17.0 21.5-23.0 15.0-17.0 26.0-30.0 27.0-32.0 8.0-10.0 1.0-3.00Copper 1.0-2.4 . 1.3-1.9 . . 0.20 . .Columbium (Nb) +tantalum0.30-1.50 . . . . . . . .Iron 13.0-17.0 2.0-6.0 3.0 max 1.25 max 4.0-7.0 2.0 m
31、ax 1.0-3.0 17.0-20.0 3.0 maxCobalt, max 5.0 2.5 2.0 . 2.5 1.0 3.0 0.5-2.5 5.0Tungsten 1.5-4.0 2.5-3.5 . . 3.0-4.5 . 3.0 max 0.2-1.0 13.0-15.0Vanadium, max . 0.35 . . 0.35 . 0.20 . .Titanium, max . . . . . . 0.2 . .Zirconium, max . . . . . . 0.10 . .Columbium (Nb) . . . . . . 0.20 max . .Tantalum . .
32、 . . . . 0.20 maxNickel +Molybdenum. . . . . . 94.0-98.0 . .Aluminum, max . . 0.50 0.50 . . 0.50 . 0.20-0.50Lanthanum . . . . . . . . 0.005-0.050Boron . . . . . . . . 0.015 maxComposition, %ElementUNSN06699UNSN12160UNSR30556UNSN06625UNSN06600UNSN10242UNSN08120UNSN06617UNSN06035Carbon 0.005-0.10 0.15
33、 max 0.05-0.15 0.10 max 0.15 max 0.03 0.02-0.10 0.05-0.15 0.050 maxManganese 0.50 max 1.5 max 0.50-2.00 0.50 max 1.0 max 0.80 max 1.5 max 1.0 max 0.50 maxPhosphorous 0.02 max 0.030 max 0.04 max 0.015 max . 0.030 max 0.040 max . 0.030 maxSulfur 0.01 max 0.015 max 0.015 max 0.015 max 0.015 max 0.015 m
34、ax 0.03 max 0.015 max 0.015 maxSilicon 0.50 max 2.4-3.0 0.20-0.80 0.50 max 0.50 max 0.80 max 1.0 max 1.0 max 0.60 maxNickel remainderAremainderA19.0-22.5 58.0 minA72.0 minAremainderA35.0-39.0 44.5 minAremainderAChromium 26.0-30.0 26.0-30.0 21.0-23.0 20.0-23.0 14.0-17.0 7.0-9.0 23.0-27.0 20.0-24.0 32
35、25-34.25Molybdenum . 1.0 max 2.5-4.0 8.0-10.0 . 24.0-26.0 2.50 max 8.0-10.0 7.60-9.00Copper 0.50 max . . . 0.5 max . 0.50 max 0.5 max 0.30 maxColumbium (Nb) +tantalum. . . 3.15-4.15 . . 0.4-0.9 . .Nitrogen 0.05 max . 0.10-0.30 . . . 0.15-0.30 . .Iron 2.5 max 3.5 max remainderA5.0 max 6.0-10.0 2.0 m
36、ax remainderA3.0 max 2.00 maxCobalt, max . 27.0-33.0 16.0-21.0 . . 1.00 max 3.0 10.0 min-15.0max1.00Tungsten . 1.0 max 2.0-3.5 . . . 2.50 max . 0.60 maxVanadium, max . . . . . . . . 0.20Titanium 0.60 max 0.20-0.80 . 0.4 max . . 0.20 max 0.6 max .Zirconium 0.10 max . 0.001-0.10 . . . . . .Columbium 0
37、50 max 1.0 max 0.30 max . . . . . .Tantalum . . 0.30-1.25 . . . . . .Aluminum, max 1.9-3.0 . 0.10-0.50 0.4 . 0.50 0.40 0.8-1.5 0.40 maxLanthanum . . 0.005-0.10 . . . . . .Boron 0.008 max . 0.02 max . . 0.006 max 0.010 max 0.006 max .B472 183SUPPLEMENTARY REQUIREMENTSThe following supplementary requ
38、irements shall be applied only when specified by the purchaserin the inquiry, contract, or order.S1. Corrosion Tests for UNS N08020S1.1 One intergranular corrosion test per heat shall beperformed by the manufacturer on a sensitized specimen andtested in accordance with Practices A262. When this supp
39、le-mentary requirement is specified, the specific practice (PracticeB or Practice E) shall also be specified. If Practice B isspecified, the specimen must pass with a rate of less than 0.002in./month (ipm).S1.1.1 The specimen shall be stabilized by annealing at atemperature of 1700 to 1750F (927 to
40、954C) and quenchingin water or rapidly cooling by other means. The specimen shallthen be sensitized for1hat1250F (677C) before beingsubjected to corrosion testing.S1.1.2 If any specimen selected to represent any heat fails tomeet the test requirement, the material represented by suchspecimen may be
41、reheat-treated and resubmitted for test.TABLE 1 ContinuedComposition, %ElementUNSN06059UNSN06686UNSN08031UNSN06045UNSN06025UNSN10629Carbon, max 0.010 0.010 0.015 0.05-0.12 0.15-0.25 0.01Manganese, max 0.5 0.75 2.0 1.0 0.15 1.5Phosphorous, max 0.015 0.04 0.020 0.02 0.02 0.040Sulfur, max 0.010 0.02 0.
42、010 0.010 0.010 0.010Silicon, max 0.10 0.08 0.3 2.5-3.0 0.5 0.05Nickel RemainderARemainderA30.0-32.0 45.0 min RemainderARemainderAChromium 22.0-24.0 19.0-23.0 26.0-28.0 26.0-29.0 24.0-26.0 0.5-1.5Molybdenum 15.0-16.5 15.0-17.0 6.0-7.0 . . 26.0-30.0Copper 0.50 max . 1.0-1.4 0.3 max 0.1 max 0.5Yttrium
43、 . . . . 0.05-0.12 .Nitrogen . 0.15-0.25 . .Iron 1.5 max 5.0 max RemainderA21.025.0 8.011.0 1.0-6.0Cobalt, max 0.3 . . . . 2.5Tungsten . 3.04.4 . . . .Vanadium, max . . . . . .Titanium, max . 0.020.25 . . 0.1-0.2 .Zirconium, max . . . . 0.01-0.10 .Columbium (Nb) . . . . . .Tantalum . . . . . .Cerium
44、 . . . 0.03-0.09 . .Aluminum, max 0.1-0.4 . . . 1.8-2.4 0.10.5ASee 11.1.TABLE 2 Permissible Variations in Size of Hot-Rolled Round BarsSpecified Size, in. (mm)Permissible Variations from Specified Size, in. (mm)Out-of-Round,Ain. (mm)Over UnderOver716 (11.11) to58 (15.88), incl 0.007 (0.18) 0.007 (0.
45、18) 0.010 (0.25)Over58 (15.88) to78 (22.22), incl 0.008 (0.20) 0.008 (0.20) 0.012 (0.30)Over78 (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.
46、016 (0.41)Over 114 (31.75) to 138 (34.92), incl 0.012 (0.30) 0.012 (0.30) 0.018 (0.46)Over38 (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
47、50) to 312 (88.90), incl364 (1.19) 0 0.035 (0.89)Over 312 (88.90) to 412 (114.30), incl116 (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 (2.1
48、8)AOut-of-round is the difference between the maximum and minimum diameters of the bar, measured at the same cross section.B472 184ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard
49、are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comment
