ASTM_F_139_-_12.pdf

Designation:F13912Standard Specification forWrought 18Chromium-14Nickel-2.5Molybdenum StainlessSteel Sheet and Strip for Surgical Implants(UNS S31673)1This standard is issued under the fixed designation F139;the number immediately following the designation indicates the year of originaladoption or,in the case of revision,the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscriptepsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This specification covers the chemical,mechanical,andmetallurgical requirements for wrought 18chromium-14nickel-2.5molybdenum stainless steel sheet and strip used for themanufacture of surgical implants.1.2 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 independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.2.Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsA480/A480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet,and StripA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsE8/E8M Test Methods for Tension Testing of Metallic Ma-terialsE10 Test Method for Brinell Hardness of Metallic MaterialsE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE45 Test Methods for Determining the Inclusion Content ofSteelE112 Test Methods for Determining Average Grain SizeE354 Test Methods for Chemical Analysis of High-Temperature,Electrical,Magnetic,and Other Similar Iron,Nickel,and Cobalt AlloysE407 Practice for Microetching Metals and AlloysIEEE/ASTM SI 10 American National Standard for MetricPractice2.2ISO Standards:3ISO 5832-1 Implants for Surgery-Metallic MaterialsPart1:Wrought Stainless SteelISO 6892 Metallic MaterialsTensile Testing at AmbientTemperatureISO 9001 Quality Management SystemsRequirements3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 lot,nthe total number of mill products producedfrom the same melt heat under the same conditions at essen-tially the same time.3.1.2 sheetany product under 0.1875 in.4.76 mm inthickness and 24 in.610 mm or more in width.3.1.3 stripany product under 0.1875 in.4.76 mm inthickness and under 24 in.610 mm wide.4.General Requirements for Delivery4.1 In addition to the requirements of this specification,allrequirements of the current edition of Specification A480/A480M shall apply.4.2 In the case where a conflict exists between this specifi-cation and those listed in 2.1 and 2.2,this specification shalltake precedence.5.Ordering Information5.1 Inquiries and orders for material under this specificationshall include the following information:5.1.1 Quantity(weight or number of pieces);5.1.2 ASTM designation and date of issue;5.1.3 Form(sheet or strip);1This specification is under the jurisdiction of ASTM Committee F04 onMedical and Surgical Materials and Devices and is the direct responsibility ofSubcommittee F04.12 on Metallurgical Materials.Current edition approved Oct.1,2012.Published October 2012.Originallyapproved in 1976.Last previous edition approved in 2008 as F139 08.DOI:10.1520/F0139-12.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.*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 States1 5.1.4 Condition(see 6.1);5.1.5 Mechanical properties(if applicable,for special con-ditions);5.1.6 Finish(see 6.2);5.1.7 Applicable dimensions including size,thickness,width,and length(exact,random,multiples)or drawingnumber;5.1.8 Special tests,if any;and5.1.9 Other requirements.6.Materials and Manufacture6.1 ConditionSheet and strip shall be furnished asspecified,in the annealed or cold-worked condition(see Table1).6.2 FinishTypes of finish available in sheet and strip aredull cold rolled,bright cold rolled,intermediate polished,general-purpose polished,dull satin-finished,high luster finish,mirror finish,or as specified by the purchaser.7.Chemical Requirements7.1 The suppliers heat analysis shall conform to the re-quirements specified in Table 2.The supplier shall not shipmaterial with chemistry outside the requirements of Table 2.7.1.1 The compositional requirement shall meet the follow-ing:%Cr