1、Designation: B654/B654M 10Standard 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 revision, the year of las
2、t 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 by this specifica
3、tion 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 be used independent
4、ly 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 problems,if any, associ
5、ated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2. Referenced Documents2.1 ASTM Standards:2B652/B652M Specification for Niobium-Hafnium Alloy In-gotsE8
6、Test Methods for Tension Testing of Metallic MaterialsE21 Test Methods for Elevated Temperature Tension Testsof Metallic MaterialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE2626 Guide for Spectrometric Analysis of Reactive andRefractory Metals3
7、. 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 same conditions. Unlessotherwise agreed between manufacturer and purchaser, a
8、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 thickness.3.1.4 sheet, na flat product 6 in. 150 mm or more inwidth and from 0
9、.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 Orders for material under this specification shouldinclude the following informatio
10、n 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 Composition (Section 6),4.1.5 Temper (Section 7),4.1.6 Mechanical test temperature an
11、d 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),4.1.10 Inspection Witnessing (see 15.2),4.1.11 Certification Requirements (Section 18), and4.1.12 Packaging (Section 20).5. Ma
12、terials and Manufacture5.1 Materials covered by this specification shall be madefrom ingots in accordance with Specification B652/B652M.1This specification is under the jurisdiction of Committee B10 on Reactive andRefractory Metals and Alloys and is the direct responsibility of SubcommitteeB10.03 on
13、 Niobium and Tantalum.Current edition approved May 1, 2010. Published June 2010. Originallyapproved in 1979. Last previous edition approved in 2004 as B654 04. DOI:10.1520/B0654_B0654M-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at service
14、astm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 The various niobium-hafnium alloy products covered byt
15、his specification are formed with the conventional extrusion,forging, and rolling equipment normally available 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
16、conform to the requirements in Table1. Analysis for elements, not listed in Table 1 and not normallyexpected 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 t
17、his specifi-cation.6.3 When specified in the purchase order, the manufacturershall test the product for elements 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 shal
18、l be in the annealed condition, defined asat least 90 % recrystallized.7.2 Other temper designations, such as 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 con
19、form to the requirements for mechanicalproperties as specified in Table 3. Unless otherwise specified inthe purchase 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
20、 purchase.9. Permissible Variations9.1 Dimensional tolerancesTolerances on niobium-hafnium alloy products covered 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 foll
21、owing equation (see Fig. 1):Flatness, % 5 H/L! 3 100 (1)where:H = maximum vertical distance between a flat referencesurface and the lower surface of the sheet, andL = minimum horizontal distance between the highestpoint on the sheet and the point of contact with a flatreference surface. (The method
22、for taking measure-ments for calculation of sheet flatness is shown in Fig.1. However, a value of H less than132 in. 0.8 mmshall not 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
23、manufacturer may overship by10 %. The permissible overshipment for orders larger than thisquantity shall be negotiated 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
24、the purpose for which it was intended. Materialmay be finished as forged, rolled, extruded, swaged, drawn; ina cleaned, machined, or ground condition. The manufacturershall be permitted to remove minor surface imperfectionsprovided such removal does not reduce the dimensions belowthe minimum permitt
25、ed by the tolerances in accordance withSection 9.TABLE 1 Chemical Requirements for IngotNiobium-Hafnium Alloy R04295ElementContent, MaximumWeight % (ExceptWhere OtherwiseSpecified)Carbon 0.015Oxygen 0.025Nitrogen 0.010Hydrogen 0.0015Hafnium 911Titanium 0.71.3Zirconium 0.700Tungsten 0.500Tantalum 0.5
26、00Niobium by difference .TABLE 2 Additional Chemical Requirements for FinishedProductNiobium-Hafnium Alloy R04295ElementContent, MaximumWeight %Oxygen 0.035Carbon 0.015Nitrogen 0.010Hydrogen 0.0015TABLE 3 Mechanical Properties for Material, Annealed ConditionA(90 % Minimum Recrystallized)Ultimate Te
27、nsileStrength, 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 6 25F 1100 6 15C 21 000 145 16 000 110 20Material greater than 0.05 in. 1.3 mm inthickness:Room temperature
28、 54 000 370 38 000 260 202000 6 25F 1100 6 15C 21 000 145 16 000 110 20ARefer to Section 14 for conditions of mechanical property tests.B654/B654M 10210.2 Test methods for these defects and standards of accept-ability shall be as agreed upon between the purchaser and themanufacturer at the time of p
29、urchase.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 substituted.11.2 In case of failure, two additional specimens shall beretested. If both
30、retest specimens conform to this specification,the original values shall be discarded and the material ac-cepted.11.3 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 i
31、fthe results of all tests, after reworking, conform to thisspecification.TABLE 4 Dimensional Tolerances for Niobium-Hafnium Alloy Flat-Rolled ProductsThickness ofMaterial, in. mm inlower tableTolerance on Thickness,Aplusor minus, in. mm in lower tableTolerance on Width (slit),Bplusor minus, in. mm i
32、n 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 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 .1
33、16 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 0.025116 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
34、 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 00.312 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
35、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 2.3 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
36、 . . 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 610 % of the thickness.BTolerance on width of sheared sheet shall be +116 , -0 in. + 1.6, -0 mm.FIG. 1 Plate and Sheet Flatness TolerancesB65
37、4/B654M 10312. 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-hand digitused in exp
38、ressing 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 Care shall be exercise
39、d 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 between the manufac
40、turer 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.Determine the yield strength by th
41、e 0.2 % offset method. Smallsize (1-in. 25-mm) gage length specimens, proportional to thestandard specimen, can be used. Determine tensile propertiesusing a strain rate of 0.003 to 0.007 in./in./min mm/mm/minthrough the yield point. After the yield strength has beenexceeded, increase the cross-head
42、speed to approximately 0.05in./in./min mm/mm/min to failure.14.3 Elevated Temperature Tension TestsConduct el-evated temperature tension tests 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
43、 and manufacturer.14.4 Chemical TestsConduct the chemical analyses by thestandard techniques normally used by the manufacturer. GuideE2626 may be used as a guide for chemical analysis tech-niques.15. Inspection15.1 The manufacturer shall inspect the material covered bythis specification prior to shi
44、pment.15.2 If so specified on the purchase order, the purchaser orhis representative may witness the testing and inspection of thematerial at the place of manufacture. In such cases, thepurchaser shall state in his purchase order which tests hedesires to witness. The manufacturer shall give ample no
45、tice tothe purchaser as to the time and place of the designated test. Ifthe purchasers representative does not present himself at theagreed 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 manufa
46、cture to bewaived. When the inspector representing the purchaser doesappear at the designated time and place, the manufacturer shallafford him, without charge, all reasonable facilities to see thatthe material is being furnished in accordance with this speci-fication. This inspection shall be conduc
47、ted 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 with
48、the results of the test, the producer orsupplier may make claim for a rehearing.17. Referee17.1 In the event of disagreement between the manufacturerand the purchaser of the conformance of the material to therequirements of this specification, or any special tests specifiedby the purchaser, a mutual
49、ly acceptable referee shall performthe tests in question. The results of the referees testing shall beused in determining conformance of the material to thisspecification.18. Certification18.1 A producers or suppliers certification shall be fur-nished to the purchaser that the material was manufactured,sampled, tested, and inspected in accordance with this speci-fication and has been found to meet the requirements. A reportof the test results shall be furnis
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