1、Designation: F1472 081F1472 14Standard Specification forWrought Titanium-6Aluminum-4Vanadium Alloy for SurgicalImplant Applications (UNS R56400)1This standard is issued under the fixed designation F1472; the number immediately following the designation indicates the year oforiginal adoption or, in t
2、he 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 NOTEEditorially corrected the ISO 58323 designation throughout in December 2008.1. Scope*1.1 Th
3、is specification covers the chemical, mechanical, and metallurgical requirements for wrought annealed titanium-6aluminum-4vanadium alloy (UNS R56400) to be used in the manufacture of surgical implants.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as
4、standard. The values givenin parentheses are mathematical conversions to SI units that are provided for information only and are not considered stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may
5、 result in non-conformance with the standard.2. Referenced Documents2.1 ASTM Standards:2E8E8/E8M Test Methods for Tension Testing of Metallic MaterialsE29 Practice for Using Significant Digits in Test Data to Determine Conformance with SpecificationsE290 Test Methods for Bend Testing of Material for
6、 DuctilityE539 Test Method for Analysis of Titanium Alloys by X-Ray Fluorescence SpectrometryE527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)E1409 Test Method for Determination of Oxygen and Nitrogen in Titanium and Titanium Alloys by Inert Gas FusionE1447 Test Met
7、hod for Determination of Hydrogen in Titanium and Titanium Alloys by Inert Gas Fusion ThermalConductivity/Infrared Detection MethodE1941 Test Method for Determination of Carbon in Refractory and Reactive Metals and Their Alloys by Combustion AnalysisE2371 Test Method for Analysis of Titanium and Tit
8、anium Alloys by Direct Current Plasma and Inductively Coupled PlasmaAtomic Emission Spectrometry (Performance-Based Test Methodology)E2626 Guide for Spectrometric Analysis of Reactive and Refractory MetalsF136 Specification for Wrought Titanium-6Aluminum-4Vanadium ELI (Extra Low Interstitial) Alloy
9、for Surgical ImplantApplications (UNS R56401)2.2 ASQ Standard:3ASQ C1 Specifications of General Requirements for a Quality Program1 This specification is under the jurisdiction of ASTM Committee F04 on Medical and Surgical Materials and Devices and is the direct responsibility of SubcommitteeF04.12
10、on Metallurgical Materials.Current edition approved Oct. 1, 2008Nov. 15, 2014. Published October 2008February 2015. Originally published in 1993. Last previous edition approved in 20022008as F1472 02a.F1472 081. DOI: 10.1520/F1472-08E01.10.1520/F1472-14.2 For referencedASTM standards, visit theASTM
11、website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indic
12、ation of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be co
13、nsidered the official document.*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 States12.2 Aerospace Material Specifications:3AMS 2249 Chemical Check Analysis Limits, Titanium a
14、nd Titanium AlloysAMS 2631 Ultrasonic Inspection Titanium, and Titanium Alloy Bar, Billet, and PlateAMS 4911 Titanium Alloy Sheet, Strip, and Plate 6Al-4V AnnealedAMS 4928 Titanium Alloy Bars, Wire, Forgings, Rings, and Drawn Shapes 6Al-4V AnnealedAMS 4965 Titanium Alloy, Bars, Wire, Forgings, and R
15、ings 6.0Al-4.0V 6.0 Al 4.0 V Solution Heat Treated and Aged2.3 ISO Standards:4ISO 58323 Implants for SurgeryMetallic MaterialsPart 3, Wrought Titanium-6Aluminum-4Vanadium AlloyISO 6892 Metallic MaterialsTensile Testing at Ambient TemperatureISO 9001 Quality Management SystemsRequirements2.4 Society
16、of Automotive Engineers Standard:3,5SAE J1086 Practice for Numbering Metals and Alloys (UNS)3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 beta transus, nthe minimum temperature at which the alpha plus beta phase can transform to 100 % beta phase.3.1.2 lot, nthe total number
17、of mill products produced from one heat under the same conditions at essentially the same time.3.1.3 stress relievedheated to a temperature below the annealing temperature with no observable change in microstructure.4. Product Classification4.1 StripAny product under 0.188 in. (4.76 mm)4.76 mm 0.187
18、5 in. in thickness and under 24 in. (610 mm)610 mm 24in. wide.4.2 SheetAny product under 0.188 in. (4.76 mm)4.76 mm 0.1875 in. in thickness and 24 in. (610 mm)610 mm 24 in. ormore in width.4.3 PlateAny product 0.188 in. (4.76 mm)4.76 mm 0.1875 in. thick and over and 10 in. (254 mm)254 mm 10 in. wide
19、and over, with widths greater than five times thickness. Plate up to 4.00 in. (102 mm)102 mm 4.00 in. thick, inclusive, is coveredby this specification.4.4 BarRound bars and flats from 0.188 in. (4.76 mm) to 4.00 in. (102 mm)4.76 mm 0.1875 in. to 150 mm 6.00 in. indiameter or thickness (other sizes
20、and shapes by special order).4.5 Forging BarBar as described in 4.4, used in the production of forgings. This product may be furnished in the hot workedcondition.4.6 WireRounds, flats, or other shapes less than 0.188 in. (4.76 mm)4.76 mm 0.1875 in. in diameter or thickness.4.7 BilletSolid semi-finis
21、hed section hot worked from an ingot whose intended use is for additional hot or cold reduction4.8 OtherOther forms and shapes, including tubing, may be provided by agreement between purchaser and supplier.5. Ordering Information5.1 Include with inquiries and orders for material under this specifica
22、tion the following information:5.1.1 Quantity,5.1.2 ASTM designation and date of issue,5.1.3 Form (strip, sheet, plate, bar, forging bar, or wire),5.1.4 Condition (see 6.3),5.1.5 Mechanical properties (if applicable, for special conditions),5.1.6 Finish (see 6.2),5.1.7 Applicable dimensions includin
23、g size, thickness, width, length, or drawing number,5.1.8 Special tests, if any, and5.1.9 Other requirements.6. Materials and Manufacture6.1 The various titanium mill products covered in this specification normally are formed with the conventional forging androlling equipment found in primary ferrou
24、s and nonferrous plants. The alloy is usually multiple melted in arc furnaces (includingfurnaces such as plasma arc and electron beam) of a type conventionally used for reactive metals.3 Available from American Society for Quality (ASQ), 600 N. Plankinton Ave., Milwaukee, WI 53203, http:/www.asq.org
25、.3 Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-0001, http:/www.sae.org.4 Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http:/www.ansi.org.5 New designation established in accordance wit
26、h Practice E527 and SAE J1086.F1472 1426.2 FinishThe mill product may be furnished to the purchaser as mechanically descaled or pickled, sandblasted, abrasivelyblasted, chemically milled, ground, machined, peeled, polished, combinations of these operations, or as specified by the purchaser.On billet
27、s, bars, plates, and forgings, it is permissible to remove minor surface imperfections by grinding if the resultant area meetsthe dimensional and surface finish requirements of this specification.6.3 ConditionMaterial shall be furnished in the annealed annealed, stress relieved, or cold-worked condi
28、tion.or hot workedcondition. Mechanical properties for conditions other than those listed in Table 3 may be established by agreement between thesupplier and the purchaser.7. Chemical Requirements7.1 The heat analysis shall conform to the chemical composition of Table 1. Ingot analysis may be used fo
29、r reporting allchemical requirements, except hydrogen. Samples for hydrogen shall be taken from the finished mill product. SupplierThe suppliershall not ship material with chemistry outside the requirements specified in Table 1.7.1.1 Requirements for the major and minor elemental constituents are li
30、sted in Table 1. Also listed are important residualelements. Analysis for elements not listed in Table 1 is not required to verify compliance with this specification.7.2 Product Analysis:7.2.1 Product analysis tolerances do not broaden the specified heat analysis requirements but cover variations in
31、 themeasurement of chemical content between laboratories. The product analysis tolerances shall conform to the product tolerancesin Table 2.7.2.2 The product analysis is either for the purpose of verifying the composition of a heat or manufacturing lot or fordetermining variations in the composition
32、 within the heat.7.2.3 Acceptance or rejection of a heat or manufacturing lot of material may be made by the purchaser on the basis of thisproduct analysis. Product analyses outside the tolerance limits allowed in Table 2 are cause for rejection of the product. A refereeanalysis may be used if agree
33、d upon by supplier and purchaser.7.2.4 For referee purposes, use Test Methods E539, E1409, E1447, E1941and, E2371, and E2626 or other analytical methodsagreed upon between the purchaser and the supplier.7.3 Samples for chemical analysis shall be representative of the material being tested. The utmos
34、t care must be used in samplingtitanium for chemical analysis because of its affinity for elements such as oxygen, nitrogen, and hydrogen. In cutting samples foranalysis, therefore, the operation should be carried out insofar as possible in a dust-free atmosphere. Cutting tools should be cleanand sh
35、arp. Samples for analysis should be stored in suitable containers.8. Mechanical Requirements8.1 The material supplied under this specification shall conform to the mechanical property requirements in Table 3.Alternativeproperties may be agreed upon between the purchaser and supplier.8.2 Specimens fo
36、r tension tests shall be machinedprepared and tested in accordance with Test Methods E8E8/E8M. or ISO6892. Tensile properties shall be determined using a strain rate of 0.003 to 0.007 in./in./min (mm/mm/min)mm/mm/minin./in./min through yield and then the crosshead speed may be increased so as to pro
37、duce fracture in approximately one additionalminute.8.3 For sheet and strip, the bend test specimen shall withstand being bent cold through an angle of 105 without fracture in theoutside surface of the bent portion. The bend shall be made over a mandrel with a diameter equal to that shown in Table 3
38、. Testconditions shall conform to Test Method E290.8.4 Number of Tests:TABLE 1 Chemical RequirementsAElement Composition, %(mass/mass)Nitrogen, max 0.05Carbon, max 0.08Hydrogen, maxB 0.015Iron, max 0.30Oxygen, max 0.20Aluminum 5.56.75Vanadium 3.54.5Yttrium, max 0.005TitaniumC balanceA Refer to AMS 4
39、928.B Billets shall have a maximum of 0.01 % hydrogen content.C The percentage of titanium is determined by difference and need not bedetermined or certified.F1472 1438.4.1 Bar, Forging Bar, Shapes, and WirePerform at least one tension test from each lot in the longitudinal direction. Shouldany of t
40、hese test specimens not meet the specified requirements, test two additional test pieces representative of the same lot, inthe same manner, for each failed test specimen. The lot will be considered in compliance only if both additional test pieces meetthe specified requirements.8.4.2 Tensile tests r
41、esults for which any specimen fractures outside the gage length shall be considered acceptable, if both theelongation and reduction of area meet the minimum requirements specified. Refer to Sections 7.11.4 and 7.12.5 of Test MethodsE8E8/E8M. If either the elongation or reduction of area is less than
42、 the minimum requirement, discard the test and retest. Retestone specimen for each specimen that did not meet the minimum requirements.8.4.3 Sheet, Strip, and PlatePerform at least one tension test from each lot in the longitudinal direction. Perform at least onebend test from each lot in both the l
43、ongitudinal and transverse directions. Tests in the transverse direction need be made only onproduct from which a specimen not less than 8.0 in. (200 mm)200 mm 8.0 in. in length for sheet and 2.50 in. (64 mm)64 mm2.50 in. in length for plate can be taken. Should any of these test pieces not meet the
44、 specified requirements, test two additionaltest pieces representative of the same lot, in the same manner, for each failed test specimen. The lot shall be considered incompliance only if both additional test pieces meet the specified requirements.9. Special Requirements9.1 The microstructure shall
45、be a fine dispersion of the alpha and beta phases resulting from processing in the alpha plus betafield. There shall be no continuous alpha network result of processing within the alpha-beta field. Microstructures shall essentiallyconsist of an equiaxed and/or elongated primary alpha in a transforme
46、d beta matrix with no continuous network of alpha at priorbeta grain boundaries. There shall be no coarse, elongated alpha platelets.9.2 Determine the beta transus temperature for each heat by a suitable method and report on the material certification if requiredby the purchaser.9.3 Alpha case is no
47、t permitted for products supplied with a machined, ground, or chemically milled or pickled surface finish.For other products, there willshall be no continuous layer of alpha case 0.0254 mm 0.001 in. when examined at 100magnification.10. Ultrasonic Inspection10.1 All centerless ground or peeled and p
48、olished round bar 9.5mm 0.375 in. in nominal diameter shall be ultrasonicallyinspected at final diameter in accordance withAMS 2631, ClassA1. Equivalent test methods may be substituted when agreed uponbetween purchaser and supplier.11. Significance of Numerical Limits11.1 The following applies to al
49、l specified numerical limits in this specification. To determine conformance to these limits, anobserved or calculated value shall be rounded to the nearest unit in the last right hand digit used in expressing the specificationlimit, in accordance with the rounding method of Practice E29.12. Certification12.1 The supplier shall provide a certification that the material was tested in accordance with this specification and met allrequirements. A report of the test results shall be furnished to the purchaser at the
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