© ISO 2016 Implants for surgery — Metallic materials — Part 7 Forgeable and cold formed cobalt chromium nickel molybdenum iron alloy Implants chirurgicaux — Produits à base de métaux — Partie 7 Alliag[.]
Trang 1Implants for sur g ery — Metal ic
Part 7:
Impla t chirurgica x — Produits à b se de méta x —
Partie 7: Aliage à frge mis en frme à froid à b se de co alt,de
chrome, de nicke l,de moly dène et de fe
T ir d edition
2 16-1 -1
Reference n mb r
ISO 5 3 -7:2 16(E)
Trang 2© ISO 2016, P blshed in Sw itz rlan
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written permis ion Permis ion c n be req esed from either ISO at the ad r es below or ISO’s member bod y in the c u try of
the r eq eser
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Trang 3F reword i v
Introduction v
1 Sc ope 1
2 Nor mati ve r eferenc es 1
3 Terms an definitions 1
4 Chemical c omposition 1
5 Micr ostructure 2
5.1 Grain siz 2
5.2 Inclusion content 2
6 Mechanical properties 2
7 Test metho s 3
Trang 4ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards
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through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical
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org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work
ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of
ele trot ech ical s an ardization
The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar
desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the
dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the
edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www.iso.org dir ctives)
A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of
p t ent right ISO shal not be held r sponsible for identifying any or al such p t ent right Detais of
any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r
on the ISO ls of p t ent de larations r c ived ( e www.iso.org p t ent )
Any trade name used in this document is information given for the convenienc of use s an does not
cons itut e an en orsement
For an ex lanation on the meaning of ISO spe ific t erms an ex r s ions r lated to conformity as es ment,
as wel as information a out ISO’s adhe enc to the Wor ld Trade Org nization (WTO) principles in the
Te h ical Bar ie s to Trade (TBT) se the folowing URL: www.iso.org/ iso/for word.html
The committ ee r sp nsible for this document is ISO/TC 1 0, Impla ts fr s urger y, Subcommitt ee SC 1,
Mate ial s
This third edition canc ls an r plac s the se ond edition (ISO 5 3 -7 :1 94 ), w hich has be n t ech icaly
r vised
A l s of al p rt in theISO 5 3 se ies can be fou d on the ISO websit e
iv
Trang 5No k own surgical implant mat erial has eve be n shown t o be complet ely fr e of adve se r actions in
the h man b dy Howeve , long -t erm clnical ex e ienc of the use of the mat erial r fe r d t o in this
document has shown that an ac epta le level of biolo ical r sp nse can be ex e t ed w hen the mat erial
is used in a pro riat e con itions
Trang 7Implants for sur g ery — Metal ic materials —
Part 7:
This document pe if ies the charact eris ics of, an cor espon ing t es methods for, forg ea le an
cold-formed co alt-chromium-nickel-moly bden m-iron alo for use in the man factur of surgical implant
NOTE T e mechanical properties of a sample o tained from a f inished prod ct made of this aloy do not
neces arily comply with those specif ied in this document
2 Normati ve r eferences
The folowing document ar r fe r d t o in the t ext in such a wa that some or al of their cont ent
cons itut es r q ir ment of this document F or dat ed r fe enc s, only the edition cit ed a ples F or
un at ed r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment ) a ples
ISO 643, Ste ls — Mic ro ra hic determin tio o the a p r nt grain s i ze
ISO 49 7, Ste l — Dete min tio o c ontent o n n-metal c inclus ions — Mic ro ra hic meth d us in
s ta dard dia rams
ISO 68 2-1, Metal c mate ials — Tens ile tes tin — Part 1: Meth d o tes t at ro m tempe atur
3 Terms and definitions
No t erms an def initions ar lst ed in this document
ISO an IEC maintain t erminolo ical data ases for use in s an ardization at the folowing ad r s es:
— IECEle tro edia: a aia le at ht p:/ www.ele tro edia.org
— ISO Onlne brow sing plat orm:a ai a le at ht p:/ www.iso.org o p
4 Chemical composition
The heat analy sis of the alo w hen det ermined as spe if ied in Clause 7 shal comply with the chemical
comp sition spe if ied in Ta le 1 The analy sis of samples taken from prod ct man factur d from the
alo shal also comply with Ta le 1
Trang 8Table 1 — Chemical compositio
Element
Element comp sitional l mit ,
% (m/m )
5 Microstructure
5.1 Grain size
The mic osco ic s ructur shal be u iform The grain siz , det ermined as spe if ied in Cla use 7, shal be
no co rse than grain siz No 5
5.2 Inclusion c ontent
The non-metal ic inclusion cont ent of the alo , det ermined as spe if ied in Clause 7, shal not ex ce d the
l mit given in Ta le 2
Table 2— Inclusio co tent l mits
a
A – Sulf ides
B– Aluminates
C – Silicates
D – Oxides, glo ular
1
3
1
3
a
There shal be no thick inclusions
6 Mechanical properties
The me hanical pro e ties, det ermined as spe if ied in Clause 7, shal be in ac ordanc with the
r q ir ment of Ta le 3
2
Trang 9Table 3— Mechanical pro erties
C n ition
Tensi e s r ngth
min
MPa
Pro f s r s of non-
pro ortional elong tion
min
MPa
Pe c ntag e elong tion
min
%
a
For spe ific ap lc tions
7 Test methods
The t es methods t o be used in det ermining complanc with the r q ir ment of this document shal
be those given in Ta le 4
Table 4 — Test methods
R equir ment
R elev nt clause or
subclause
Tes meth d
C emical composition
Clause 4
Reco nized analyt ical pr oced ures (ISO
methods where these e ist)
Mechanicalproperties
Tensile strength
Per entag e elong tion
Pro f stres of non-proportional elong tion
Trang 10© ISO 2016 – A ll rig hts r eserved
ICS 11.040.40
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