1、Designation: B654/B654M 10 (Reapproved 2018)Standard Specification forNiobium-Hafnium Alloy Foil, Sheet, Strip, and Plate1This standard is issued under the fixed designation B654/B654M; the number immediately following the designation indicates the yearof original adoption or, in the case of revisio
2、n, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers hafnium alloyed niobium foil,sheet, strip, and plate.1.2 The material covered
3、 by this specification is R04295,niobium-base alloy containing approximately 10 % hafniumand 1 % titanium.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall b
4、e used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 The following safety hazards caveat pertains only to thetest methods portion, Section 14, of this specification: Thisstandard does not purport to address all of the safety probl
5、ems,if any, associated with its use. It is the responsibility of the userof this standard to establish appropriate safety, health, andenvironmental practices and determine the applicability ofregulatory limitations prior to use.1.5 This international standard was developed in accor-dance with intern
6、ationally recognized principles on standard-ization established in the Decision on Principles for 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:2B652/B
7、652M Specification for Niobium-Hafnium Alloy In-gotsE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE21 Test Methods for Elevated Temperature Tension Tests ofMetallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2626 Guide
8、for Spectrometric Analysis of Reactive andRefractory Metals (Withdrawn 2017)33. Terminology3.1 Definitions:3.1.1 foil, na flat product less than 6 in. 150 mm wideand less than 0.005 in. 0.13 mm in thickness.3.1.2 lot, na lot is defined as that material produced fromone ingot and heat-treated at the
9、same conditions. Unlessotherwise agreed between manufacturer and purchaser, a lotshall be limited to the product of an 8 h period for finalcontinuous anneal or to a single furnace load for a final batchanneal3.1.3 plate, na flat product 6 in. 150 mm or more inwidth and more than 0.187 in. 4.8 mm in
10、thickness.3.1.4 sheet, na flat product 6 in. 150 mm or more inwidth and from 0.005 in. 0.13 mm to 0.187 in. 4.8 mm inthickness.3.1.5 strip, na flat product, may be supplied in coil, lessthan 6 in. 150 mm wide and from 0.005 in. 0.13 mm to0.187 in. 4.8 mm in thickness.4. Ordering Information4.1 Order
11、s for material under this specification shouldinclude the following information as applicable:4.1.1 General alloy description (see 1.2) and ASTM desig-nation and year of issue,4.1.2 Quantity in weight or pieces,4.1.3 Size, diameter or thickness, width, and length, asapplicable,4.1.4 Chemical Composi
12、tion (Section 6),4.1.5 Temper (Section 7),4.1.6 Mechanical test temperature and limits (Sections 8and 14),4.1.7 Permissible dimensional tolerances and weight orquantity variations (see 9.3),4.1.8 Quality and finish (see 10.2),4.1.9 Sampling (see 13.2),1This specification is under the jurisdiction of
13、 Committee B10 on Reactive andRefractory Metals and Alloys and is the direct responsibility of SubcommitteeB10.03 on Niobium and Tantalum.Current edition approved Oct. 1, 2018. Published October 2018. Originallyapproved in 1979. Last previous edition approved in 2010 as B654/B654M 10.DOI: 10.1520/B0
14、654_B0654M-10R18.2For 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.3The last approved version of this historica
15、l standard is referenced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision o
16、n Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.14.1.10 Inspection Witnessing (see 15.2),4.1.11 Certification Requirements (Section 18), and4.1.12 Packaging (Section 20).5. Mater
17、ials and Manufacture5.1 Materials covered by this specification shall be madefrom ingots in accordance with Specification B652/B652M.5.2 The various niobium-hafnium alloy products covered bythis specification are formed with the conventional extrusion,forging, and rolling equipment normally availabl
18、e in metalworking plants.6. Chemical Composition6.1 The chemical composition of niobium-hafnium alloyingots and billets for conversion to finished products coveredby this specification shall conform to the requirements in Table1. Analysis for elements, not listed in Table 1 and not normallyexpected
19、in niobium-hafnium alloy, shall not be requiredunless specified at time of purchase.6.2 The manufacturers ingot analysis shall be consideredthe chemical analysis for products supplied under this specifi-cation.6.3 When specified in the purchase order, the manufacturershall test the product for eleme
20、nts specified in Table 2. Theresults of the tests shall meet the limits shown in Table 2.7. Temper Designations7.1 Unless otherwise stated, the materials supplied underthis specification shall be in the annealed condition, defined asat least 90 % recrystallized.7.2 Other temper designations, such as
21、 cold-worked temperor stress-relieved temper may be specified in the purchaseorder.8. Mechanical Requirements8.1 Materials in the annealed condition supplied under thisspecification shall conform to the requirements for mechanicalproperties as specified in Table 3. Unless otherwise specified inthe p
22、urchase order, the materials shall conform to the require-ments for room temperature mechanical properties. The pur-chaser may specify elevated temperature mechanical propertiesat the time of purchase.9. Permissible Variations9.1 Dimensional TolerancesTolerances on niobium-hafnium alloy products cov
23、ered by this specification shall be asprescribed in Table 4.9.2 Flatness tolerance for sheet and plate products suppliedunder this specification shall be 6 % maximum, as determinedby the following equation (see Fig. 1):Flatness, % 5 H/L! 3100 (1)where:H = maximum vertical distance between a flat ref
24、erencesurface and the lower surface of the sheet, andL = minimum horizontal distance between the highest pointon the sheet and the point of contact with a flat referencesurface. (The method for taking measurements forcalculation of sheet flatness is shown in Fig. 1.However, a value of H less than132
25、 in. 0.8 mm shallnot be cause for rejection.)9.3 Quantity or WeightFor orders up to 100 ft 30 m, themanufacturer may overship by 20 %. For orders up to 1000 lb450 kg or 1000 ft 300 m, the manufacturer may overship by10 %. The permissible overshipment for orders larger than thisquantity shall be nego
26、tiated at the time of purchase.10. Quality and Finish10.1 Niobium-hafnium alloy product shall be free of inju-rious external and internal imperfections of a nature that willinterfere with the purpose for which it was intended. Materialmay be finished as forged, rolled, extruded, swaged, drawn; ina c
27、leaned, machined, or ground condition. The manufacturershall be permitted to remove minor surface imperfectionsprovided such removal does not reduce the dimensions belowthe minimum permitted by the tolerances in accordance withSection 9.10.2 Test methods for these defects and standards of accept-abi
28、lity shall be as agreed upon between the purchaser and themanufacturer at the time of purchase.11. Retests11.1 If any sample or specimen exhibits obvious surfacecontamination or improper preparation disqualifying it as atruly representative sample, it shall be discarded and a newsample or specimen s
29、ubstituted.11.2 In case of failure, two additional specimens shall beretested. If both retest specimens conform to this specification,the original values shall be discarded and the material ac-cepted.TABLE 1 Chemical Requirements for IngotNiobium-Hafnium Alloy R04295ElementContent, MaximumWeight % (
30、ExceptWhere OtherwiseSpecified)Carbon 0.015Oxygen 0.025Nitrogen 0.010Hydrogen 0.0015Hafnium 911Titanium 0.71.3Zirconium 0.700Tungsten 0.500Tantalum 0.500Niobium by difference .TABLE 2 Additional Chemical Requirements for Finished ProductNiobium-Hafnium Alloy R04295ElementContent, MaximumWeight %Oxyg
31、en 0.035Carbon 0.015Nitrogen 0.010Hydrogen 0.0015B654/B654M 10 (2018)211.3 If the results of the tests are not in conformance withthe requirements of this specification, the lot may be reworkedat the option of the manufacturer. The lot shall be acceptable ifthe results of all tests, after reworking,
32、 conform to thisspecification.12. Significance of Numerical Limits12.1 The following applies to all specified limits in thisstandard for purposes of determining conformance with thisspecification. The observed value or a calculated value shall berounded off “to the nearest unit” in the last right-ha
33、nd digitused in expressing the specification limit, in accordance withthe rounding-off method of Practice E29.13. Sampling13.1 Samples shall be taken from the material to determineconformity to this specification. The samples shall be taken soas to be representative of the finished products.13.2 Car
34、e shall be exercised to ensure that the sampleselected for testing is representative of the material, and that itis not contaminated by the sampling procedure. If there is anyquestion relating to the sampling techniques or analysisthereof, the methods of sampling and analysis shall be asagreed upon
35、between the manufacturer and the purchaser.14. Test Methods14.1 The tensile limits shall apply to samples taken in eitherthe longitudinal or transverse direction of processing.14.2 Room Temperature Tension TestConduct room tem-perature tension tests in accordance with Test Methods E8/E8M. Determine
36、the yield strength by the 0.2 % offset method.Small size (1-in. 25-mm) gage length specimens, propor-tional to the standard specimen, can be used. Determine tensileproperties using a strain rate of 0.003 to 0.007 in./in./minmm/mm/min through the yield point. After the yield strengthTABLE 3 Mechanica
37、l Properties for Material, Annealed ConditionA(90 % Minimum Recrystallized)Ultimate TensileStrength, min, psiMPaYield Strength(0.2 % offset), min,psi MPaElongation in 1 in.25 mm gage length,min, %Material 0.05 in. 1.3 mm and thinner:Room temperature 56 000 385 40 000 275 202000 25F 1100 15C 21 000 1
38、45 16 000 110 20Material greater than 0.05 in. 1.3 mm inthickness:Room temperature 54 000 370 38 000 260 202000 25F 1100 15C 21 000 145 16 000 110 20ARefer to Section 14 for conditions of mechanical property tests.TABLE 4 Dimensional Tolerances for Niobium-Hafnium Alloy Flat-Rolled ProductsThickness
39、 ofMaterial, in. mm inlower tableTolerance on Thickness,Aplusor minus, in. mm in lower tableTolerance on Width (slit),Bplusor minus, in. mm in lower tableTolerance on Sheared Lengths, in.mm in lower tableWidth under6 in. or 150 mmWidth 6 to24 in. or 150 to610 mmWidth under6 in. or 150 mmWidth 6 to24
40、 in. or 150 to610 mmLength 12 in. or 305mm and underLength over 12 in.or 305 mmPlus Minus Plus Minus0.005 to 0.010 excl 0.0005 0.001 0.012 .116 0332 00.010 to 0.015 excl 0.0007 0.001 0.015 0.015116 0332 00.015 to 0.020 excl 0.0008 0.0015 0.015 0.015116 0332 00.020 to 0.030 excl 0.0015 0.0025 0.020 0
41、.025116 0332 00.030 to 0.060 excl 0.0025 0.0035 0.025 0.030116 0332 00.060 to 0.090 excl 0.004 0.005 0.025 0.035116 0332 00.090 to 0.125 excl 0.006 0.007 . .116 0332 00.125 to 0.187 excl 0.010 0.010 . .116 0332 00.187 to 0.250 excl 0.015 0.015 . .18 0532 00.250 to 0.312 excl 0.020 0.020 . .18 0532 0
42、0.312 to 0.375 excl 0.025 0.025 . .316 0732 0Millimeters0.13 to .25 excl 0.013 0.025 0.30 . 1.6 0 2.4 00.25 to 0.40 excl 0.018 0.025 0.4 0.4 1.6 0 2.4 00.40 to 0.50 excl 0.020 0.04 0.4 0.4 1.6 0 2.4 00.50 to 0.8 excl 0.04 0.06 0.5 0.6 1.6 0 2.4 00.8 to 1.5 excl 0.06 0.09 0.6 0.8 1.6 0 2.4 01.5 to 2.
43、3 excl 0.10 0.13 0.6 0.9 1.6 0 2.4 02.3 to 3.2 excl 0.15 0.18 . . 1.6 0 2.4 03.2 to 4.8 excl 0.25 0.25 . . 1.6 0 2.4 04.8 to 6.4 excl 0.4 0.4 . . 3.2 0 4.0 06.4 to 8.0excl 0.5 0.5 . . 3.2 0 4.0 08.0 to 9.5 excl 0.6 0.6 . . 4.8 0 5.6 0ATolerance on thickness of sheet over 24 in. 600 mm wide shall be
44、10 % of the thickness.BTolerance on width of sheared sheet shall be +116, -0 in. + 1.6, -0 mm.B654/B654M 10 (2018)3has been exceeded, increase the cross-head speed to approxi-mately 0.05 in./in./min mm/mm/min to failure.14.3 Elevated Temperature Tension TestsConduct el-evated temperature tension tes
45、ts in accordance with TestMethods E21 at the temperature shown in Table 3. One inch25 mm gage lengths can be used. Strain rates shall be agreedupon by purchaser and manufacturer.14.4 Chemical TestsConduct the chemical analyses by thestandard techniques normally used by the manufacturer. GuideE2626 m
46、ay be used as a guide for chemical analysis tech-niques.15. Inspection15.1 The manufacturer shall inspect the material covered bythis specification prior to shipment.15.2 If so specified on the purchase order, the purchaser orhis representative may witness the testing and inspection of thematerial a
47、t the place of manufacture. In such cases, thepurchaser shall state in his purchase order which tests hedesires to witness. The manufacturer shall give ample notice tothe purchaser as to the time and place of the designated test. Ifthe purchasers representative does not present himself at theagreed
48、upon time for the testing, and if no new date is agreedupon, the manufacturer shall consider the requirement for thepurchasers inspection at the place of manufacture to bewaived. When the inspector representing the purchaser doesappear at the designated time and place, the manufacturer shallafford h
49、im, without charge, all reasonable facilities to see thatthe material is being furnished in accordance with this speci-fication. This inspection shall be conducted so as not tointerfere unnecessarily with production operations.16. 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 w
