Bsi bs en 10271 1999 (2009)

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TheEuro ea S ta d rdEN10 271:19 8h sthes tatusofa

B ritis hS ta dard

ICS7 1 0.5

N COPYIN G WITH OU T BSI PE MIS ION E C PT AS PER MIT ED B COPY IGH T LAW

condi ti ons

Conf irmed

Mar h 2009

T h isBrit ishSt an d ard ,h avin g

b enpre aredu n d ert h e

d iret ionoft h eEn g in eerin g

S ct orCom m it t ee,w aspublsh ed

u n d ert h eauth orit yofth e

St an d ard sCom m it tee n dc m es

in t oefe ton15March19 9

BSI0 - 19 9

ISBN05 030 85 1

A mendmentsis u edsincepubl ca tion

Amd.N o Date Te xtafec ted

ThisBritis hS ta d rdistheEnglis hlanguagevers ionofEN10 271:19 8

TheUKp rtic ipatio initsprep ratio wasentrus tedb Tec hnic alCommite

IS E/10 ,Flatrolle ds te lpro uc ts ,toS ubc ommite IS E/10 /8 ,Co teds te lflatrolled

pro uc ts ,whic hh stheres po s ib ityto:

Ð aide nq irer tou ders ta dthetext;

Ð pres ent othere s po s ibleEuro ea c ommite a ye nq irie so the

interpretatio ,orpro os alsforc ha g ,a dke eptheUKinteres tsinformed;

Ð monitorrelatedintern tion landEuro ea develo mentsandpromulgate

themintheUK

Alis toforganiz atio srepre s entedo thiss ubc ommitte ec anbeo taine do req es t

toitss ec retary

Cros -r efer ences

TheB ritis hS ta d rdswhic himpleme ntintern tio alorEuro ea p blc ations

referedtointhisd c umentma befo n intheB S IS ta d rdsCatalogueu de rthe

s ec tionentitledªIntern tion lS ta d rdsCores po de nc eIndexº,orb us ingthe

ªFindºfac ilityoftheB S IS ta d rdsElec tro icCatalogue

AB ritis hS ta darddoesn tp rp rt oinc ludeal thenec es s arypro is ionsofa

c ontrac t.Us er ofB ritis hS ta d rdsareres po s ibleforthe irc orec ta plic atio

Compla ncewithaBritishSta nda rddo snotofitselfconferimmu ity

f omleg a lo lg a tions

Summaryofpa ges

Thisd c umentc ompris esafo tc over,a ins idefo tc over,theENtitlep ge,

p ges2to12,a ins ideb c kc overa dab c kc ove r

Euro e anCommitte forS ta d rdiz atio

Comite Euro eÂendeN ormals ation

Euro aÈis c hesKomite efu

È

rN ormung

Cen t ralSecret ari at : r u edeSt assart 36 ,B- 10 50 Br u ssel s

 19 8CENAl rightsofex loitatio ina yform a db a yme ans res ervedworldwide forCENn tio al

Members

Ref.N o.EN10 271:199 8 E

ICS7 7.14 5

Descriptor: St eel prod uct s, m et al plat es, c ld roled prod uct s, c at ed m et al, g lv n izin g , n ickel c atin g s, ele t rod ep sit ed c at in gs,

d esig n at ion ,ch em ic lc m posit ion ,g rad es:qualt y,m ech an ic lpro ert ies,su rfa etre t m en t ,in sp ct ion ,t est s, m ark in g

E nglshversion

Electrolyticaly zinc-nickel (ZN) coated steel flat products Ð

Technical delvery conditions

Pro duitsp latsenacier, reveà usdezinc-nickel(ZN)

p arvo ieeÂlectro lytiq eÐC onditions tech iq esde

lvraison

Flacherzeugnis ea sSta lmit elektro lytisch

ab geschiedenenZin -Nickel(ZN)-U

È

b erzuÈgenÐ

Te h ischeLieferb edingu g n

This Euro ea S ta d rdwas a pro edb CENo 5 N ovember19 8

C N membe rs are b u d toc omply with the CEN /CEN ELEC Intern lRegulations

whic h s tipulate the c on itions for giving this Euro ea S ta d rd the s tatus of a

n tio al s ta d rd with ut a y alte ration Up-to-d te ls ts a d bibliogra hic al

refe renc e s c onc erning s uc h n tio al s ta d rds ma be o tained o a plc ation to

the CentralS e c retariatortoa yCEN member

This Euro ea S ta d rdexis tsinthre ofic ialve rs io s (Englis h,Frenc h, German)

Avers io in a yother la guage ma e b tra s latio u der the re s po s ibilityofa

C N membe rintoitsownlangu ge a d n tified to the Ce ntralS ec re tariath s the

s ame s tatusastheofic ialvers io s

C N member are the n tio al s ta d rds b die s of Aus tria, B elgium, Cz e c h

Rep blic , Denmark, Finlan , Fra c e, Germa y, Gre ec e, Ic ela d, I relan , Italy,

L xembourg, N etherlands , N orwa, Portugal, S pain, S weden, S witz erla d a d

UnitedKingdom

F orewo rd

ThisEuro ea S ta d rdh s be nprep redb

Tec hnic alCommitte ECIS S /TC2 , S urac e c oatedflat

pro uc tsÐQu litie s ,dimens io s , tolera c es a d

s pec ifictes ts , theS ec retariatofwhic h isheldb DI N

ThisEuro ea S ta d rds hal begiventhes tatusofa

n tionals tandard, eitherb public atio ofa identic al

textorb en ors eme nt,at helates tb May19 9,a d

c onflic ting n tion ls ta d rdss hal bewith rawnat

thelates tb May199 9

ECI S S /TC2 meto 19 6 -1 -2 inDu

È

s s eld r a d

agre do thetextfors ubmis s ionofthisdraft

Euro e anS ta d rdtoFormalVote Thefollowing

c ou trieswe rerepres entedinth tmee ting: Aus tria,

B elgium,Fra c e , German ,N etherla dsa dUnited

Kingdom

Ac c ordingtotheCEN /CEN ELEC I ntern lRe gulatio s ,

then tio als ta d rdsorganiz ationsofthe fo owing

c ou triesareb u dtoimple ment hisEuro ea

S ta d rd:Aus tria,Be lgium, Cz ec hRep blic , De nmark,

Finlan ,Fra c e, German , Gre c e,Ic ela d,Irela d,

Italy, L xemb urg,N e therlan s ,N orwa,Portugal,

S pain, S weden,S witz erlan a dtheUnited Kingdom

C onte nts

Page

5 2 S te lma inga d ma ufac turing

5 12S urac etreatment(S urac e prote c tio ) 8

5 14Mas s , tolera c eso dimens ions a d

10 I nformationtobe s up liedb the

An exB(normative) Referenc e meth dfor

determinatio ofthez inc -nic kelc oating

mas sa dthez inc -nic ke l c oating

U n t ilt h ey ret ran sform edin t oEu ro e nSt an d ard s,eit h ert h eEU R ON R MSreferedt oort h ec resp n d in gn ation alst an d ard sm ay

b a pli e

1 Sc o p e

1.1 This Euro e anS ta d rds pec ifiesreq ireme ntsfor

c ontinuo s lyelec trolytic z inc -nic kelc oatedc oldro ed

flatpro uc tsoflowc arb ns te lss uita le forc old

formingac c ordingtoTa le1 a dTa le2inrolled

widths$6 0 0mma dthic knes s esfom0 3 5mmu to

a dinc lu ing3mm, de liveredass trip(inc oi form),

s he t,s lits triporc utle ngthso tainedfoms lits trip

ors he t.The c oatingisc ompos edofZ nwith a

N i-c ontentof 0 5%to13%

1.2 This Euro ea S ta d rdmayals o bea p ed to

thec oatingreq irementsofc ontin o s lyelec trolytic

z inc -nic kelc oatedc oldrolledflatpro uc ts of:

a) s te lsac c ordingtoEN10 13 9 (c oldro eds tripin

roledwidths<6 0 0mm);

b) otherty es oflowc arb ns te lforc oldforming;

c ) s te lsn rmallyc harac teriz edb minimum yield

s tre ngthv lues ina ditiontoforma ilityp rameters ,

e.g:

Ðs te lswithhighyie lds trengtha dimpro ed

formab ityac c ording toEN10 26 8orother

mic ro ll yeds te ls ;

Ðrep os ph riz eds te lsa db ke-hardening

s tee ls ;

Ðgeneralp rp s es truc turals te ls

1.3 B ys pe c ialagree mentat hetimeofordering this

Euro ea S tandardma bea pliedtothec oating

req irementsofc ontin o s lyelec trolyticz inc -nic ke l

c oatedh t-rolle ds te lflatpro uc ts (e.g.ac c ording

toEN10 0 25 ,EN10 11 , EN10 149-1 toEN10 149-3etc )

1.4 Thec oating mas s e s , s urac e q alitiesa d s urac e

finis he saregivenin5.9, 5.1 a dTa le3 As themas s

ofthe z inc -nic kelc oating a p edisrelativelys mall,the

mate rialisn tinten e dtowiths ta do ts ide ex os ure

with utfurtherc hemic altreatmenta d p inting

1.5 This Euro ea S ta dardis n ta p c able to

Ðh t-dipz incc oateds te ls tripa d s hee t

(s eeEN10 142a d EN10 147);

Ðelec trolytic alyz incc oatedc old rolle dflat

pro uc ts(s e eEN10 15 2);

Ðc ontinu us lyh t-dipaluminium-s ilic on(AS )

c oateds te ls tripa ds he et(s e eEN10 15 4);

Ðc ontinu us lyorganicc oateds te lflatpro uc ts

(s eeEN10 16 9);

Ðc ontinu us lyh t-dipz inc -aluminium(ZA)c oated

s te els tripa ds hee t(s eeEN10 214);

Ðc ontinu us lyh t-dipaluminium-z inc(AZ )c oated

s te els tripa ds hee t(s eeEN10 215 )

2 No rmative referenc es

This Euro ea S ta d rd inc orp ratesb d tedor

u d tedreferenc epro is ions fomotherp b c ations

Thes en rmativereferenc earec itedatthea pro riate

plac es inthete xta dthep blic atio s are ls ted

he re after.Ford te dreferenc es , s ubs eq ent

amen mentstoorre vis ions ofa yofthes e

p blic ationsa plytothisdraftEuro ea S ta d rd

o lywheninc orp ratedinitb amen mentor

revis io Foru d te drefere nc es , the lates te ditionof

the p blc ationrefe rre d toa plie s

EN V6 0 6 ,Barcodedtrans po tandh ndli ng labelsfr

s te lpr ducts

EN10 0 0 2-1,Metali cmateri alsÐTens i le tes ti ng

Part1: Methodo tes ti ng( tambi enttemperature)

[i nclu di ngAd endu mAC1:1990]

EN10 0 0 2-2,Metali cmateri alsÐTens i le tes ti ngÐ

Part2: Veri fi cati ono thefrcemeas uri ngs ystemo

the tens i letes ti ngmachi nes

EN10 0 0 2-4,Metali cmateri alsÐTens i le tes ti ngÐ

Part4: Veri fi cati ono extens ometers u s edi n u ni axi al

tes ti ng

EN10 0 20 , Defi ni ti onandclas si fi cati ono gra e o

s te l

EN10 0 21,Generaltechni caldeli veryreq u i rementsfr

s teelandi ronpr du cts

EN10 0 27-1,Des i gnati ons ys temsfrs te lsÐ

Part1: Steel names , pri nci palsymbols

EN10 0 27-2,Des i gnati ons ys temsfrs te lsÐ

Part2: Nu meri cals ys tem

EN10 0 79,Defi ni ti ono ste lpr du cts

EN10 13 0 , Coldr ledlowcar ons teelflatpr du cts fr

coldfrmi ngÐTechni caldeli v erycondi ti ons

EN10 13 1,Cold-r lednon-coatedflatpr ducts i nlow

car ons teelfrcoldfrmi ngÐtoleranceson

di mens i ons andsh pe

EN10 13 9,Coldr ledu ncoatedlowcar ons te ls tri p

frcoldfrmi ngÐTechni caldeli verycondi ti ons

EN10 20 4, Metali cpr du ctsÐTy e o i ns pecti on

documents(i nclu de amendmentA1:1995)

EN10 26 8 , Cold-r ledflatpr du cts madeo hi ghyi eld

s trengths te lsfrcoldfrmi ngÐGeneraltechni cal

deli verycondi ti ons

CR10 260ECI S SIC10 ,Des i gnati ons ys temsfrs te lÐ

Ad i ti onals ymbolsfrs teelnames

EURON ORM12( 9 5 5 )

1)

,Bendtes tfrs te ls he tand

s tri p le sth n3mmthick

IS O10 113 ,Metali cmateri alsÐSheetandstri pÐ

Determi nati ono plas ti cs trai n rati o

IS O10 275 ,Metali cmateri alsÐSheetandstri pÐ

Determi nati ono tens i lestrai nh rdeni ngex onent

3 D efinitio ns

Forthep rp s esofthis Euro ea S ta d rd the

followingdefinitiona p esina ditiontothe

de finitio s inEN10 0 20 , EN10 0 21,EN10 0 79

a dEN10 20 4

3.1

el ect r ol yt i c zi n c-n i ckelcoat i n g(ZN)

a plc ationofaz inc -nic ke l c oatingb e lec trolys iso a

s uita lypre pareds te els urac e foma a ueo s s alt

s olutionb theus e ofa elec tric c ure nt

N T E Flatprod u ct sm ayh av azin c- n ickelc at in gonon eor

b t hsura es.Ifb t hsu rfa esarezin c- n ick elc at ed ,ad iferen t

c at in gt h ickn es m ayb a pledonechsid e(t h ispro es b in g

referedt oasd iferen tialzin c- n ick elc atin g )

4 D es ignatio n

4.1 Thes tee ln mes are alloc ate dinac c ord nc ewith

EN10 0 27-1 a dCR10 26 0Ðthes te ln mber are

aloc atedinac c ord nc ewithEN10 0 27-2

4.2 Thepro uc tsc ove redb thisEuro ea S ta d rd

s ha be de s ignatedasfollowsintheorde rgiven:

a) ty eofpro uc t(e.g.s trip, s he t, c utle ngth);

b) n mberofthiss ta d rd (EN10 271);

c ) s te ln meors te ln mbera ds ymbolforthe

ty eofe lec trolytic allyc oating(s e eTa le1 a d

Ta le2);

d) n mber de notingtheminimum c oatingthic knes s

o eac h s urac e(e.g.5 0 /5 0= minimum c oating

thic kne s sof5 0m mo eac hs urac e,s eeTa le3 ,

5.9.2,5.9.4 a d5.9.5);

e) leter AorBindic atingthes urac eq a ty

(s e e5.1 2);

f)leter deno ting thes urac e tre atment(s ee5.12

a dTa le4)

Ex mple1: Des ignatio nofs tripma eofs tee l

DC0 3 +Z N , (1.0 3 47+Z N ), e lec trolytic ally z inc -nic kel

c oatedwithan minalthic knes sof5 0mmo e ac h

s urac e(5 0 /5 0 ),s urac eq a tyA,s urac e treatme nt

oiled(O):

S tripEN10 271-DC0 3 +Z N 5 0 /5 0 -A-O

or

S tripEN10 271-1.0 3 47+Z N 5 0 /5 0 -A-O

Ex mple2: De s ignatio ofs hee tma eofs te l

DC0 5 +Z N (1.0 3 12+Z N ),e lec trolytic allyz inc -nic kel

c oate dwithan min lthic knes sof5 0mmo o e

s urac ea dof2.0mmo theothers urac e(5 0 /20 ),

s urac eq altyB , s urac etre atmentoile d(O)

S he etEN10 271-DC0 5 +Z N 5 0 /20 -B -O

or

S he etEN10 271-1.0 3 12+Z N 5 0 /20 -B -O

4.3 Wherea pro riate,addition linformationtothe

des ignationass pe c ified in4 2s ha be give nto

des c ribec learlythedeli eryreq irements

(s e ec laus e10 )

5.1 Gen eral

Thereq ire ments ac c ordingto5.2 to5.5 a d5.13

a plytothe s tee ls ubs trate sgiveninTa le1 a d

Ta le2

Forothe rs te lsus edass ubs trateforelec trolytic aly

dep s itedc oatingsofz inc -nic ke l(s ee1.2a d1.3) the

req ireme nts s ha beb s edo thea pro riateq ality

s ta d rdforthen n-c oated s te lpro uc t

5.2St eel m aki n gan d manu fact u r ingpr oces es

Unles sothe rwis eagre datthetimeofordering,the

s te lmaking a dma ufac turingproc e s s e sareleftto

the dis c retio ofthema ufac turer.Thep rc has ers hal

beinformedofthes e proc es s es , ifhereq iresit

5.3De x id at ion

Themeth dofdeo id tio s ha beinac c ord nc e with

th ts pec ifiedinTa le1 a dTa le2

5.4Chemi cal com posi t i on

Thec he mic alc omp s itionb s edo la lea alys is s hal

beasgiveninTa le1 a dTa le2

5.5Del verycon di t i on

Thes tee ls ubs trate saren rmallys up liedinthe

s kin-pas s e dc on itio B yagre mentatthe time ofthe

en uirya dordern ns kin-pas s edpro uc ts maybe

s up lied

5.6Ch oice ofpr op r t ies

Thepro uc ts c ove redb thisEuro ea S ta d rds hal

c omplywiththereq ireme ntsofTa le1 a dTa le2

B yagre menttheyma bede liveredas s uita lefor

makingap rtic ularp rt; inthisc as eamaximum

perc entageofs c ra ma beagre da dac c epta c eo

the b s isofmec ha ic alpro e rties isn ta p c able

5.7Mechanical pr op r t i es

5.7 1 Themec ha ic alpro erties aregivenin Ta le1

a dTa le2

N T E T h epro ert iesinTa le2aret h osesp cifiedforc ld

roll edn on - co tedl owc rb nst eelfl atprod uct sa c rd in gto

EN1013 w it ht h eexce t ionoft h eR

e ,A

8

an dn

9

v lues ort h e

grad esDC0 + N,DC0 + Nan dDC0 + Nw h i chh av b en

alt eredw it hresp ctt ot h ein fluen ceoft h eele t rolyt ic lt re t m en t

ont h osepro ert ies

Themec ha ic alpro ertiesarev lidfortheperio

s pec ifiedinTa le1 a d Ta le2fomthed teo

whic hthepro uc tsaremade a a a le Thed teof

a a a ilitys ha ben tifiedtothe p rc has e rwith

reas on blepriorn tic ec omp tiblewiththev li ityof

the mec ha ic alpro erties Prolo ged s torageof

pro uc ts ofgra eDC0 1+Z Nc ouldres ultins ome

c ha ge intheme c ha ic alpro ertiesle ading toa

red c tio informa ility

T

T

5.7 2 The te ns ilete s ts hal bec arie do tac c ordingto

therelev nts ta d rdsforthe s ubs trate(e.g.loc ation of

s amples ).Thetens ilete s tv lue sa plytotra s vers e

s amplesa drelatetothe te s t piec ec ros s -s ec tio

with utz inc -nic kelc oating

Tes tings ha bec ariedo tafte rc oating.Do bles ide

c oatedpro uc tss hal betes te dwithc oating, s ingle

s idec oatedpro uc tss ha h vethec oatingre move d

be foretes ting

5.8 Str etcher st r a i n mar ks

Al pro uc tsarege neralys ubjec tedtoalights kin-p s s

aftera nealnga dbeforec oatingat he

ma ufac turer'sworkstoa oidthe formatio of

s tre tc hers trainmarks

Theten e nc yto forms uc h marksrea pear ac ertain

timeafte rthes kin-p s s Itisthereforeinthe

p rc has e r's interes ttoformthepro uc tsass oo as

p s s ible

Pro uc tsofgra eDC0 6 +Z N d n tex ibits tretc her

s trainmarks

Theman fac ture rs hal e ns ure thea s enc e ofs tretc her

s trainmarks :

Ðfor6mo thsafte rpro duc tsofgra es DCO3 +Z N ,

DC0 4+Z N a dDC0 5 +Z Narema ea ailable,for

s urac eq a tiesAa dB ;

Ðfor3mo thsafte rpro duc tsofDC0 1+Z N are

ma e a ailable, fors urac eq a tyB

5.9 Co tin gs

5.9.1 Z inc -nic kelc oatingsasgive nin Ta le3are

a plc able foreq a yc oatedpro uc ts

5.9.2 Inthedes ignationthe c oatingise xpres s edas

tentimestheminimum c oatingthic knes sinm m,

in ic ate ds ep ratelyfore ithers urac e ofthe pro uc t

(s e e4 2 )

5.9.3 The c oatingss hal bec hec kedb determining

themas sofz inc -nic kelc oating pe rs qu reme treo

e ac h s urac e (s e e6.4 4a d6.5.4 ).Eac hres ults hal

mee tthere quirementsfortheminimum c o atingmas s

ac c ording toTa le3

5.9.4 Diferentialc oatingsb s e du o ac ombin tio

ofthe c oatingsmentio edinTa le3maybea aia le ,

s ubjec ttoagre eme ntbetwe n man fac ture ra d

p rc has e r The ys ha be de s ignatedasfollows :

Z N 5 0 /2 etc

Whendifferentialc oatingsares up liedthe

ma ufac turers ha in ic atewhic h s urac eh s the

greaterc oatingthic knes s , i.e.theto ortheb tom

s urac eofthes hee ts , ins ide oro ts ide ofthec oil

5.9.5 Materialma bes up lied,s ubjec ttoagre eme nt

betwe nma ufac turera dp rc has e r, withc oatingo

o es urac eo ly S uc hc oatingss ha bede s ignatedas

fo ows : Z N 5 0 /0 0etc

S lightz inc -nic kelc oatingsmaya pearwithin a

dis ta c e of 0mmfomthee dgesoftheu c oated

s urac e(wra pedaro n ).Ama imumv lueforthe

permis s ible res idu lc oatingmas so theu c oated

s urac es hal beagre datthetimeofe nq irya d

order

5.9.6 Ama imum v lue(s ingles po tte s t) forthe

c oatingmas spers urac eofthepro uc tma be agre d

u o foreac hc oatingdes ignatio

Ta ble 3Ð Electroly tic zinc-nick elcoa ting s

(s eeals o5.9.4 a d5.9.5)

Coa ting

design tio

Minimumzinc-nickelco tingvalues

foreachsurac

1)2)3)

2

1)

Ac at in gt h ickn es of mmc resp n d st oac at in gm as of

a proxim at ely7 3g /

2

2)

S e 4.4an d6.5.4

3)

An om in alc at in gc nb sp cifiedb ag re m en t Int h isc se,

t h em in im umzin c- n ickelc at in gsh al alsob ag re datt h etim e

ofen qui ryan dord er

5.10 Ad esi on ofcoat ing

Thea hes io ofthec oating s ha betes ted us ingthe

meth ds pec ifie din6.5.3 Afte rbe nding, the c oating

s hal s hown s igns of lakingat heo ters ideofthe

be nd,b ta areaof6mmfomeac h edgeofthe

s pec ime ns ha bedis regardedinordertoe xc lude the

e ffec tofthec uting Craz inga d ro gheningare

pe rmis s ible

5.1 Su r fa ce char a cter istic

5.1 1 G ene al

Thes urac e c harac teris tic sc ons is tofthes urac e

q a tya dthes urac efinis h

Thes urac eq a tya dfinis hs hal bes pec ifiedb the

p rc has eratthe time oftheorder(s ee4 2)

5.1 2Surfac qu lit y

5.1 2.1 The pro uc ts s ha bes up liedwitheithe rof

the s urac e q altiesAorB :

ÐS urac eq altyA:defec ts s uc has p res , s light

in entatio s , s mal marks , minors c ratc hesa ds light

c olouring whic hd notefec tforma ilityorthe

a plc ationofs ubs eq e nts urac ec oatingsare

pe rmited

ÐS urac eq altyB:thebete rofthetwo s urac es

s ha bevirtu lyfe foms urac eimperec tions

liabletoimp irtheu iforma peara c e ofa

high-q alityp intfinis h.Foro e-s idedc oating, this

req irements ha a plyfortheu c oate ds urac e

u les sotherwis e agree d Theothers urac e s ha at

leas tc onform tos urac e q a tyA

Unle s so therwis eagre d, as ingles urac e o fthe s hee t

s hal beins pec teda ds ha c omplywiththe

req ire ments

Theothe rs urac es hal bes uc hth td rings ubs e quent

treatme ntitd e sno th veade leterio s efec to the

s urac eins pec ted

5.1 2.2 Whens up lyings tripinc oils , thereisgreater

ris k ofs urac e defec tsth nifs he ta dc utlengthsare

s up liedasitis n tp s s ibleforthe ma ufac turerto

elmin teal thedefec tsinac oil Thiss hal beta en

intoac c ou tb thep rc has e rwhenev luatingthe

pro uc ts

5.1 3Surfac finish

B yagree mentat hetimeofthe en uirya dorder

ra g sfors urac e ro gh es s( R

a

v lues ) maybe

s pec ifiedfors pec ificen us es

5.12 Su r face t r eat ment (Su r face pr ot ect i on)

Oneo fthety es ofs urac e tre atmentgiven inTa le4

s hal be agre datthetime ofe nq irya dorder

N ormall, e lec trolytic allyz inc -nic kelc oateds tripa d

s he taredelive redoied(O)

Oiing(O) red c e sthe ris kofc oros io oc c uring

d ringtra s porta ds torage,whic his mainlyd e to

h midity

I ts hal bep s s ible toremo etheo layerwith

s uita lede tergentsn tatac king the z inc -nic kel

c oating Itisas s umedth tthepro c e s s orh s al the

eq ipmentnec es s aryfordegreas ingthepro uc ts

Ta ble4Ð Ty es ofsur ace trea tment

1)

P Ph s ph teda d c hemic all s ealed

C Che mic alyp s s iv te d

P O Ph s ph ted, c he mic allys ealeda doiled

CO Chemic alyp s s iv teda doied

PO Ph s ph teda doile d

1)

T h et ype f u rfa et re t m en tsh al b a re dup natt h et im e

ofen qui ryan dord er

5.13 Applca tions

5.13.1 Weld ing

Thepro uc tiss uita leforwelding underc on itions

laidd wnforthe b s emetal.Howeve r, prec autio s

ma benec es s arytoo erc omethepres enc eofthe

z inc -nic kelc oatinga d, wherea plied,thep os phate

o thes urac eofthepro uc t

5.13.2Paint ing

Z inc -nic ke lc oateds te l sas uita le b s e forp int,b t

thefirs ttre atmentma bediferentfomth s e us e d

foru c oate d s te l.Pre-treatme ntprime rs , c hemic al

c on ers ion c oatingsa dprimer s pec ia yformulate d

fordire c ta p c atio toz inc -nic kels urac es areal

a pro riatefirs t treatmentsforelec trolytic aly

z inc -nic kelc oateds te l

Indrawing u as urac eprep ratio a d p inting

s c hed le,c ons ideratio s ho ldbegivenb the

p rc has e rastowhetherthemate rials ho ld be

s up liedc hemic allyp s s ivatedorp os ph teda d/or

oile d (s e eals o5.12)

5.13.3Forming

Elec trolyticz inc -nic kelc oatingsareus ualytightly

a herentevenwhenus edfordiffic ultformings

However,p wdering c anoc c urifthe pro uc tis

o erormedorªc oinedº d ring fa ric ation Care s ho ld

beta e ntoens ureth tthe s pe dof orminga d the

c leara c eofdie sis c arefu yc ontroled

5.14M ass,t ol er an ces on di men si ons an d sh ape

5.14.1 Thepro uc tmas ss ha be c alc ulatedta ing

thede ns ityofthes tee las7.85kg/dm

3

a d the dens ity

ofthez inc -nic kelc oatingas7.3kg/dm

3

5.14.2 Forthe tole ra c e so dimens io nsa ds ha e

EN10 13 1 a ples Thea plic atio ofotherdimens io al

s ta d rdss hal bes pec iallyagre datthetimeof

en uirya dorder

6Tes ting

6 1 Gen eral

6 1.1 Thep rc has ers hal s pe c ifyatthe time ofthe

en uirya dorderhis req irementsfor:

Ðty eoftes ting: s pec ificorn n-s pec ific

(s e eEN10 0 21);

Ðty eofins pe c tio d c ument(s ee EN10 20 4)

6 1.2 S pe c ifictes tings ha bec aried o tin

ac c ord nc e with6.2to6.6

6 1.3 S pec ificte s tingmayn tbes pec ified e itherfor

thepro uc ta alys isorthes urac efinis h.Howe verb

agre mentatthetime ofen uirya dorderthe

ma ufac turermays up lyac ertific ateofc omplianc e

withtheorder

6 2Test u n i t s

Thetes tu itc ons is tso f2 torafac tio nof2 tof

elec trolytic all z inc -nic kelc oatedflatpro uc ts ofthe

s ame gra ea dn min lthic knes s , c oatingty ea d

s urac e c harac teris tic s Inthec as e o fs trip,ac oi with

amas sofmoreth n2 tisre ardedas o ete s tu it

6 3Nu mb r oft est s

Ones e rie s oftes ts s hal bec ar iedo utperte s tu itas

s pe c ifiedin6.2todete rmine:

Ðthemec ha ic alpro ertie s (s ee6.5.1);

Ðther-andn-v luesifs pe c ified in Ta les1 a d2

(s e e6.5.2);

Ðthea he s io ofthe c oating(s ee6.5.3);and

Ðthec oatingmas s(s e e6.5.4 )