1、Designation:F218002(Reapproved 2015)Standard Specification forMetallic Implantable Strands and Cables1This standard is issued under the fixed designation F2180;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision
2、.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers the materials,dimensionaltolerances,constructions,and mechanical properties for stan-dard metallic implantable
3、 strands and cables.1.2 This specification is intended to assist in the develop-ment of specific strand and cable specifications.It is particu-larly appropriate for high load bearing applications.It is notintended however,to address all of the possible variations inconstruction,material,or propertie
4、s.1.3 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.2.Referenced Documents2.1 ASTM Standards:2E8 Test Methods for Tension Testing of Metallic MaterialsF86 Practice for Surface Preparation and Marking of Metal-lic Surgical Impla
5、ntsF90 SpecificationforWroughtCobalt-20Chromium-15Tungsten-10Nickel Alloy for Surgical Implant Applica-tions(UNS R30605)F136 Specification for Wrought Titanium-6Aluminum-4Vanadium ELI(Extra Low Interstitial)Alloy for SurgicalImplant Applications(UNS R56401)F138 Specification for Wrought 18Chromium-1
6、4Nickel-2.5Molybdenum Stainless Steel Bar and Wire for SurgicalImplants(UNS S31673)F562 SpecificationforWrought35Cobalt-35Nickel-20Chromium-10Molybdenum Alloy for Surgical ImplantApplications(UNS R30035)F1058 Specification for Wrought 40Cobalt-20Chromium-16Iron-15Nickel-7Molybdenum Alloy Wire and St
7、rip forSurgical Implant Applications(UNS R30003 and UNSR30008)F1295 Specification for Wrought Titanium-6Aluminum-7Niobium Alloy for Surgical Implant Applications(UNSR56700)F1314 Specification for Wrought Nitrogen Strengthened 22Chromium13 Nickel5 Manganese2.5 MolybdenumStainless Steel Alloy Bar and
8、Wire for Surgical Implants(UNS S20910)F1341 Specification for Unalloyed Titanium Wire UNSR50250,UNS R50400,UNS R50550,UNS R50700,forSurgical Implant Applications(Withdrawn 2006)32.2 American Society for Quality(ASQ)Standard:4ASQ C1 Specification of General Requirements for a Qual-ity Program2.3 Depa
9、rtment of Defense Specifications:5MIL-DTL-83420J Wire Rope,Flexible,ForAircraft ControlMIL-DTL-83420/1B Wire Rope,Flexible,Type 1,Compo-sition AMIL-DTL-83420/2B Wire Rope,Flexible,Type 1,Compo-sition B3.Terminology3.1 Definitions:3.1.1 cable,na group of strands helically twisted together.3.1.2 diame
10、ter,nthe distance between opposing pointsacross the circle circumscribing either the strand or cable asillustrated in Figs.1 and 2(see MIL-DTL-83420J,MIL-DTL-83420/1B and MIL-DTL-83420/2B).3.1.3 lay(or twist),nthe helical form taken by the wires ina strand and by the strands in a cable(see MIL-DTL-8
11、3420J).3.1.3.1 DiscussionIn a“Right Lay”situation,the wires ofthe strand(or the strands in a cable)are oriented in the samedirection as the thread on a right-hand screw.3.1.4 length of lay(or pitch),nthe distance parallel to theaxis of the strand(or cable)in which a wire(or strand)makesone complete
12、turn about the axis.1This specification is under the jurisdiction of ASTM Committee F04 onMedical and Surgical Materials and Devices and is the direct responsibility ofSubcommittee F04.21 on Osteosynthesis.Current edition approved Sept.1,2015.Published October 2015.Originallyapproved in 2002.Last pr
13、evious edition approved in 2011 as F2180 02(2011)1.DOI:10.1520/F2180-02R15.2For 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
14、 website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American Society for Quality(ASQ),600 N.Plankinton Ave.,Milwaukee,WI 53203,http:/www.asq.org.5Available from DODSSP,Building 4,Section D,700 Robbins Ave.,Philadelphia,PA 191115098.Copyright A
15、STM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.1.5 MN,nthe construction designation for strands andcables.In this construction designation M represents thenumber of strands in the cable and N represents the number ofwires in each strand.3.1.5.1 D
16、iscussion Some examples of strand construc-tions are 17 and 13.Similar examples of cable constructionsare 77 and 719.3.1.6 strand,na group of wires helically twisted together.3.1.7 wire,nan individual element(typically a cylindricalrod)making up a strand.4.General Requirements4.1 In addition to the requirements of this specification,allrequirements of the current editions of Specifications F90,F136,F138,F562,F1058,F1295,F1314,and F1341 shallapply.4.2 In cases of conflict between this specificati
