ASTM_F_961_-_14.pdf

Designation:F96114Standard Specification for35Cobalt-35Nickel-20Chromium-10Molybdenum AlloyForgings for Surgical Implants(UNS R30035)1This standard is issued under the fixed designation F961;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.1.Scope*1.1 This specification covers the requirements for 35cobalt-35nickel-20chromium-10molybdenum alloy(UNS R30035)inthe form of forgings,used for the manufacture of surgicalimplants.1.2 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard.Thevalues stated in each system may not be exact equivalents;therefore,each system shall be used independently of the other.Combining values from the two systems may result in noncon-formance with the standard.2.Referenced Documents2.1 ASTM Standards:2A751 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in Test Data toDetermine Conformance with SpecificationsE92 Test Method for Vickers Hardness of Metallic Materials(Withdrawn 2010)3E112 Test Methods for Determining Average Grain SizeE140 Hardness Conversion Tables for Metals RelationshipAmong Brinell Hardness,Vickers Hardness,RockwellHardness,Superficial Hardness,Knoop Hardness,Sclero-scope Hardness,and Leeb HardnessE165 Practice for Liquid Penetrant Examination for GeneralIndustryE354 Test Methods for Chemical Analysis of High-Temperature,Electrical,Magnetic,and Other Similar Iron,Nickel,and Cobalt AlloysF562 SpecificationforWrought35Cobalt-35Nickel-20Chromium-10Molybdenum Alloy for Surgical ImplantApplications(UNS R30035)F601 Practice for Fluorescent Penetrant Inspection of Me-tallic Surgical ImplantsF688 SpecificationforWroughtCobalt-35Nickel-20Chromium-10MolybdenumAlloy Plate,Sheet,and Foilfor Surgical Implants(UNS R30035)F981 Practice for Assessment of Compatibility of Biomate-rials for Surgical Implants with Respect to Effect ofMaterials on Muscle and BoneIEEE/ASTM SI 10 American National Standard for Use ofthe International System of Units(SI):The Modern MetricSystem2.2 ISO Standards:4ISO 5832-6 Implants for SurgeryMetallic MaterialsPart 6:Wrought Cobalt-Nickel-Chromium-Molybdenum AlloyISO 9001 Quality Management SystemsRequirements2.3 American Society for Quality Control Standard:5ASQ C1 Specification of General Requirements for a Qual-ity Program3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 lot,nthe total number of forgings produced from thesame heat under the same conditions at essentially the sametime.4.Ordering Information4.1 Inquiries and orders for forgings under this specificationshall include the following information:4.1.1 Quantity,4.1.2 ASTM designation and date of issue,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 MaterialsCurrent edition approved Oct.1,2014.Published November 2014.Originallyapproved in 1985.Last previous edition approved in 2008 as F961 08.DOI:10.1520/F0961-14.2For 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 historical standard is referenced onwww.astm.org.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.5Available from American Society for Quality(ASQ),600 N.Plankinton Ave.,Milwaukee,WI 53203,http:/www.asq.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 4.1.3 Mechanical properties(if applicable,for specialconditions),4.1.4 Form,4.1.5 Applicable dimensions,including size,thickness,width,and length(exact,random,or multiples),or drawingnumber,4.1.6 Condition,4.1.7 Finish,4.1.8 Special tests(if any),and4.1.9 Other requirements.5.Materials and Manufacture5.1 Material for forgings shall be bars or wire fabricated inaccordance with Specification F562 or Specification F688.Thematerial shall be generally in the solution-annealed conditionwith a finish suitable for forging.5.2 The material shall be forged by hammering,pressing,extruding,or upsetting and shall be processed,if practicable,soas to cause metal flow during the hot working operation in thedirection most favorable for resisting stresses encountered inservice,as may be indicated to the