1、Designation:F13813aStandard Specification forWrought 18Chromium-14Nickel-2.5Molybdenum StainlessSteel Bar and Wire for Surgical Implants(UNS S31673)1This standard is issued under the fixed designation F138;the number immediately following the designation indicates the year of originaladoption or,in
2、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 speci
3、fication covers the chemical,mechanical,andmetallurgical requirements for wrought 18chromium-14nickel-2.5molybdenum stainless steel bar and wire 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 valu
4、es 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 Intergranula
5、rAttack in Austenitic Stainless SteelsA484/A484M Specification for General Requirements forStainless Steel Bars,Billets,and ForgingsA555/A555M Specification for General Requirements forStainless Steel Wire and Wire RodsA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel Produ
6、ctsE8/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 f
7、or 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 AlloysF981 Practice for Assessment
8、of Compatibility of Biomate-rials for Surgical Implants with Respect to Effect ofMaterials on Muscle and BoneF1350 Specification for Wrought 18Chromium-14Nickel-2.5Molybdenum Stainless Steel Surgical Fixation Wire(UNS S31673)IEEE/ASTM SI 10 American National Standard for MetricPractice2.2 Aerospace
9、Material Standard:3AMS 2630 Inspection,Ultrasonic Product Over 0.5 inch(12.7 mm)ThickAMS 2632 Ultrasonic Inspection of Thin Materials2.3 ISO Standards:4ISO 58321 Implants for SurgeryMetallic MaterialsPart 1:Wrought Stainless SteelISO 6892 Metallic MaterialsTensile TestingISO 9001 Quality Management
10、SystemsRequirements3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bar,nrounds,flats,or other shapes from 0.1875 in.4.76 mm to 4 in.101.60 mm in diameter or thickness.(Other sizes and shapes by special order.)3.1.2 fine wire,nwire as described in 3.1.5,less than 0.063in.1.60 mm
11、 in diameter or thickness.3.1.3 forging bar,nbar as described in 3.1.1,used for theproduction of forgings,may be furnished in the hot workedcondition.3.1.4 lot,nthe total number of mill products producedfrom the same melt heat under the same conditions at essen-tially the same time.1This specificati
12、on 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.1,2013.Published November 2013.Originallyapproved in 1971.Last previous edition approved in 2
13、013 as F138 13.DOI:10.1520/F0138-13A.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 SAE Internati
14、onal(SAE),400 Commonwealth Dr.,Warrendale,PA 15096-0001,http:/aerospace.sae.org.4Available 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 B
15、arr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.5 wire,nrounds,flats or other shapes less than 0.1875in.4.76 mm in diameter or thickness.4.General Requirements for Delivery4.1 In addition to the requirements of this specification,allrequirements of the current edition
16、s of Specifications A484/A484M and A555/A555M shall apply.4.2 In the case where a conflict exists between this specifi-cation and those listed in 2.1 and 2.3,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(bar,wire,fine wire);5.1.4 Condition(see 6.1);5.1.5 Mechanical properties(if applica
