Tiêu chuẩn iso 16120 2 2017

© ISO 2017 Non alloy steel wire rod for conversion to wire — Part 2 Specific requirements for general purpose wire rod Fil machine en acier non allié destiné à la fabrication de fils — Partie 2 Exigen[.]

Non-al oy steel w ire rod for

Part 2:

Fil-machine en acier n n alié destiné à la fbrication de fils —

Partie 2: Exigence s spéc ifique s a fil-machine d’usage g n ral

T ir d edition

2 17-0

Reference n mb r

ISO 161 0-2:2 17(E)

COPYRIGHT PROTECTED DOCUMENT

© ISO 2017, P blshed in Sw itz rlan

A ll rig hts r eserved Unles otherw ise spe ified, nopar of this p blc tion ma y be r epr od c d or utilz d otherw ise in an form

or b an me ns, ele tr onic or me hanic l, inclu in p oto opying , or postin on the internet or an intranet , w ithout prior

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

ISO c pyrig ht ofic

C de Blan on et 8 • C 4 1

CH-1 14 Vernier, Geneva, Switzerlan

Tel + 12 7 9 011

Fax 412 7 9 0 4

c pyrig ht@iso.or g

www.iso.or g

F reword i v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 Desig natio 1

5 Req irements 2

5.1 General 2

5.2 Chemical composition 2

5.3 Inte nal soun nes an surfac q alty 4

5.4 Depth of surfac discontinuities 4

5.5 Cor e seg r egation 4

5.6 Tensie s r eng th 4

5.7 S ale characte is ics 5

5.8 Me hanical damag e 5

A nne x A (informative)Ste l desig natio s and desig nation of comparable ste l g rades 6

Biblog raphy 8

ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards

b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly car ied out

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

committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational

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 terms an ex r s ions r lat ed 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

This document was pr p r d b Te h ical C mmitt ee ISO/TC 1 , Ste l, Subcommitt ee SC 1 , Ste l w ir

rod a d w ir produc ts

This third edition canc ls an r plac s the se ond edition (ISO 1612 - 2:2 1 ), w hich has be n

t ech icaly r vised

A l s of al p rt in theISO 16 12 se ies can befou d on the ISO websit e

Non-al oy steel wire rod for c onversion to wire —

Part 2:

This document is a plca le t o g ene al purp se st eel wir rod for drawing an / r cold rol ing

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 4948- 2, Ste ls — Clas s ific atio — Part 2 : Clas s ific atio o u alo ed a d alo s te l s ac c ordin to main

q alt y clas s es a d main pro ert y or a plc atio charac te i s tic s

ISO 16 12 -1:—,

1)

No -alo s te l w ir rod fr c on e s io to w ir — Part 1: G ene al r q ir ment

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 Desig nation

In the designation C##D, “C” means non-alo st eel ( e ISO/TS 4949); ## is the in icative a e ag e

cont ent of carb n; “ D” signifies that it is for wir -drawing

If st eels ar orde ed ac ording t o chemical composition, ## in icat es the v lues t o be inse t ed b the

pur hase ac ording t o the st eel names designat ed in Ta le 1, firs column

The designations of comp ra le st eel grades in national or r gional s an ards ar pro ided in Annex A

St eels can also be orde ed ac ording t o t ensie s r ngth The mid-p int of the r q ir d ultimat e t ensi e

s r ngth (UTS) rang e shal be in icat ed as a suff ix t o the grade designation, e.g C##D – 1 2 , w he e the

r q ir d mid-point of the UTSis 1 0 0MPa “##” means “t o be lef blank” sinc the carbon cont ent is at

the disc etion of the sup lying mi , an the sup lying mi l in icat es the ex ct n mbe of ## based on

the grade designation u ti shipment S e Ta le 1 for the grade designation

1) Un er preparation.Stag e at he time of p blication: ISO/FDIS 161 0-1:2 16

5 Requir ements

5.1 General

F or the g ene al r q ir ment , se ISO 1612 -1

5.2 Chemical c omposition

F or the heat analy sis, the v lues shown in Ta le 1 shal a ply If a prod ct analy sis is r q ir d, the

pe mis ible deviations of the prod ct analy sis r lative t o the spe if ied v lue of the heat analy sis ar

given in Ta le 2

Table 1 — C emical analy sis (he t analy sis)

St eel

grade

a

Heat analy sis

C b

%

Si c

%

Mn d

%

P

%

ma

S

%

ma

Cr

%

ma

Ni

%

ma

Mo

%

ma

Cu e

%

ma

Al

%

ma

C26D 0,24 t o 0,2 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,2 0,2 0,0 0,3 0,0

C3 D 0,3 t o 0,3 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,2 0,2 0,0 0,3 0,0

C3 D 0,3 t o 0,40 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,2 0,2 0,0 0,3 0,0

C 2D 0,40t o 0,45 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,2 0,2 0,0 0,3 0,0

C 8D 0,45 to 0,5 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C5 D 0,48 t o 0,5 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C5 D 0,5 to 0,5 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C56D 0,5 t o 0,5 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C5 D 0,5 t o 0,60 0,1 to 0,3 0,5 to 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

NO E Element not inclu ed in Table 1 may not be ad ed intentionaly to the s e l without the agre ment of the

p rchaser, e c pt hose inten ed for finishin the he t B agre ment at he time of orderin , the grades c n c ntain

ad itions (c mmonly termed micro loyin ad itions ) of Cr an V The c ntent of Cr is u to 0,30 % an the c ntent of V is

0,05% to 0,10 %

a

Non-aloy q alty s e l for general p rposes shal c mply with u aloyed q alty s e l in ISO 4 4 -2

b

For s e l grades C26D to C 2D, the c rbon ran e may e enlarged b low erin the minimum b 0,01 % an b incre sin

the ma imum b 0,01%, b agre ment betw een the su pler an p rchaser

c

For wire rod inten ed for galvaniz tion, the req ired lower lmit of si c n c ntent should be spe if ied at he time of

orderin B agre ment at he time of orderin , the ma imum si c n level for grades C D to C20D may e fur her res ricted

d

For grades f om C1 D to C 2D, a diferent an e f om the one in ic ted in Table 1, b t of the same ampltu e, c n be

agre d at the time of orderin , with a ma imum not ex ce din 1,20 % an a minimum not lower than 0,30 %

e

A ma imum c p er c ntent of 0,20 % may be agre d at the time of orderin For s e l grades C 8D to C 2D, C + Sn

shal be ≤ ,2 %

f

B agre ment at he time of orderin , the value for aluminium c n be fix d at 0,01% to 0,0 % In such c ses, the value

of si c n c n be f ix d at ≤ ,10 % on req es

St eel

grade

a

Heat analy sis

C b

%

Si c

%

Mn d

%

P

%

ma

S

%

ma

Cr

%

ma

Ni

%

ma

Mo

%

ma

Cu e

%

ma

Al

%

ma

C 0D 0,5 t o 0,63 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C 2D 0,60t o 0,65 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C 6D 0,63 to 0,68 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C 8D 0,65 t o 0,70 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C 0D 0,68to 0,73 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C 2D 0,70 t o 0,75 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C7 6D 0,73to 0,78 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C 8D 0,75 to 0,8 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C8 D 0,78 t o 0,8 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C8 D 0,8 t o 0,8 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C86D 0,8 t o 0,8 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C8 D 0,8 t o 0,9 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

C9 D 0,9 to 0, 95 0,1 t o 0,3 0,5 t o 0,8 0,0 0 0,0 0 0,1 0,2 0,0 0,2 0,0

NO E Element not inclu ed in Table 1 may not be ad ed intentionaly to the s e l without the agre ment of the

p rchaser, ex cept those inten ed for finishin the he t B agre ment at he time of orderin , the grades c n c ntain

ad itions (c mmonly termed micro loyin ad itions )of Cr an V The c ntent of Cr is u to 0,30 % an the c ntent of V is

0,05% to 0,10 %

a

Non-aloy q alty s e l for general p rposes shal c mply with u aloyed q alty s e l in ISO 4 4 -2

b

For s e l grades C26D to C 2D, the c rbon ran e may e enlarged b lowerin the minimum b 0,01 % an b incre sin

the ma imum b 0,01%, b agre ment between the su pler an p rchaser

c

For wire rod inten ed for galvaniz tion, the req ired lower lmit of si c n c ntent hould be spe ified at he time of

orderin B agre ment at he time of orderin , the ma imum si c n level for grades C D to C20D may e fur her res ricted

d

For grades f om C1 D to C 2D, a diferent an e f om the one in ic ted in Table 1, b t of the same ampltu e, c n be

agre d at he time of orderin , with a ma imum not e c edin 1,20 % an a minimum not low er than 0,30 %

e

A ma imum c p er c ntent of 0,20 % may be agre d at he time of orderin For s e l grades C 8D to C 2D, C + Sn

shal be ≤ ,2 %

f

B agre ment at the time of orderin , the value for aluminium c n be fix ed at 0,01% to 0,0 % In such c ses, the value

of si c n c n be fix ed at ≤ ,10 % on req es

Table 2 — Permis ible deviatio in the pro uct analy sis in relatio to the specified he t

analy sis

in prod ct analy sis

%

C

C D t o C2 D

C26D t o C8 D

C86D t o C9 D

± ,0

± ,0

± ,04

NO E If agre d at the time of orderin , the permis ible deviation betw een prod ct analysis an he t analysis for c rbon

c n be in relation tothe a tual he t analysis ins e d of the spe if ied ran e

Table 1 (c ontin ed)

5.3 Internal soundnes and surfac e qual ty

The wir rod shal ha e no int ernal an / r surfac discontin ities, such as shrin holes, c acks, folds,

inc us ations, not ches, sca s or rol ng bur s, w hich ma be detrimental t o it cor e t use

5.4 Depth of surface disc ontinuities

The wir rod shal not ha e any surfac discontin ities with depths gr at er than those shown in Ta le 3

These l mit v lues a ply for the t es chosen in ac ordanc with ISO 1612 -1:—, 9.4.3 an 9.5.3

Ta le 3 a pl es to roun wir rod only; ma imum discontin ity lev els for othe sha es ma be

a r ed upon

Table 3 — Limit values for the depth of surface dis ontinuities of ro nd wire ro

Dimensions in milimetr es

Nominal diamet er

d

Ma imum pe mis ible depth of

sur-fac discontin ities — radial depth

a

Ma imum pe mis ible actual length

of surfac discontin ities

,c

5 ≤ d ≤ 1

d > 1

0,2

0,2

0,2

0,3

a

The depth of sura e disc ntin ities is me sured f om the a tual sura e of the prod ct in a radial dire tion

b

The a tual me sured len th of the disc ntin ities S e ISO 16 120-1:—, An ex for an e planation of terms

c

The tes for the ma imum a tual len th of sura e disc ntin ities may be skip ed b agre ment betw een the su pler

an p rchaser

5.5 Core seg regation

Unles othe wise a r ed at the time of orde ing, not mor than 2 % of t es pie es inspe ted from

s e l grade C6 D, or those with a highe carb n content, shal be Clas 4, an none shal be of Clas 5

( e ISO 16 12 -1:—, An ex A) However, it is r commended that this ev luation be done as p rt of a

q alty sys em

5.6 Tensi e streng th

F or grades spe if ied b chemical composition, an if r q est ed b the pur hase at the time of orde ing,

the sup le shal pro ideguidanc v lues of t ensi e s r ngth

F or grades spe ified b t ensie s r ngth, the pur hase shal use the designations desc ibed in Clause 4

The ultimat e t ensie s r ngth of the wir rod shal fal within the lmit of pe mis ible v riation given

in Ta les 4 an 5 for the designat ed s r ngth level

The rang es given in Ta le 4 ar r fe r d t o as Option A

F or c rtain a pl cations, the rang es given in Ta le 5 (Option B) ma be a r ed at the time of enq iry

an orde

Table 4 — Permis ible variation for ultimate tensi e strength of the wire rod (MPa), Optio A

(in r lation t o the s pecified

s r ngth level)

C i to-coi an within coi v ariation

(in r lation t o the actu l

b t ch mean)

Table 5 — Permis ible variation for ultimate tensi e strength of the wire rod (MPa), Optio B

(in r lation t o the s pecified

s r ngth level)

C i to-coi an within coi v aria tion

(in r lation t o the actu l

b t ch mean)

5.7 Scale characteristic

The scale charact eris ics ma be a r ed betwe n the sup l e an pur hase These ma be spe if ied as

q antity of scale an / r descala i ity

5.8 Mechanical damag e

The wir rod shal ha e no a rasive damag e (he conseq enc of frictional contact betwe n wir rod

an wir rod, wir rod an conc et e, or wir rod and st eel) detrimental t o it subseq ent proc s ing

an en use Stan ards of ac epta i ity r lating t o pe mis ible levels of damag e ma be a r ed betwe n

the sup l e an pur hase I lus rative ex mples of me hanical damag e ar shown in ISO 1612 -1:—,

An ex C

A nnex A

This document wi l be ado t ed b CEN without chang es The eq iv lent E ro ean st eel n mbe s ar

the efor lst ed in column 2 of Ta le A.1

Table A.1 — Steel designations in ac ordance with this d cument and designation of

comparable steel grades in natio al or re ional standards

St eel

designation

Euro ean

mat erial no

St eel

designation

n/ nr y a

St eel

designation

n/nr y a

SWRH42A

SWRH42B

SWRH47A

SWRH47B

SWRH57

SWRH62A

SWRH62B

a

Deviation of the chemic l analysis (he t analysis ) f om that given in this do ument:n = no; nr = not

relevant;y relevant