1.4113 Stainless hlau yog dab tsi?

1.4113 stainless hlau, feem ntau hu ua 434 lossis UNS S43400, yog molybdenum-alloyed ferritic stainless hlau uas muaj kev txhim kho corrosion piv rau tus qauv 430, tshwj xeeb tshaj yog nyob rau hauv chloride- muaj ib puag ncig. Nrog nws cov molybdenum ntxiv thiab sib npaug chemistry, nws muab tus nqi - siv tau zoo rau cov qib austenitic rau cov ntawv thov uas yuav tsum tau ua kom zoo corrosion thiab formability. Nws kev sib xyaw ua ke ntawm cov khoom zoo, txhim kho pitting tsis kam, thiab lub zog me me ua rau nws siv dav hauv tsheb txiav, khoom siv hauv chav ua noj, thiab kev siv vaj tsev nyob qhov twg yuav raug rau txoj kev ntsev, zaub mov acids, lossis tshuaj me me.

 

Qhov no molybdenum- qib ferritic zoo dua yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4113
ASTM / AISI (USA)	434, UA S43400
JIS (Nyiv)	SUS 434
Lub Npe	434

Nws muaj pes tsawg leeg suav nrog molybdenum rau txhim kho cov tshuaj chloride thiab txhim kho pitting tsis kam.

Element	C	Si	Mn	P	S	Cr	Mo
Cov ntsiab lus (%)	Tsawg dua lossis sib npaug li 0.12	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug li 0.04	Tsawg dua lossis sib npaug li 0.03	16.0 - 18.0	0.75 - 1.25

Nws muaj qhov zoo ductility, nruab nrab lub zog, thiab txhim kho corrosion kuj.

Khoom	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HB)
Tus nqi	Ntau dua lossis sib npaug li 240 MPa	450 - 600 MPa	Ntau dua lossis sib npaug li 22%	Tsawg dua los yog sib npaug li 200

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4113 / 434

Txhim kho Chloride Resistance:Qhov sib ntxiv ntawm molybdenum (0.75-1.25%) muab kev tiv thaiv zoo dua rau pitting thiab crevice corrosion nyob rau hauv chloride ib puag ncig piv rau tus qauv 430, ua rau nws tsim nyog rau kev siv ntug hiav txwv dej thiab thaj chaw uas muaj ntsev raug.

Formability zoo:Ua kom zoo ductility thiab formability, haum rau khoov, sib sib zog nqus nqus, thiab txoj kev ua haujlwm.

Sib nqus thiab nqi-zoo:Muaj zog sib nqus thiab siv nyiaj ntau dua npib tsib xee- muaj cov qib austenitic, muab qhov sib npaug ntawm kev ua tau zoo thiab tus nqi.

Zoo Oxidation Resistance:Tsim nyog tiv thaiv oxidation ntawm qhov kub siab txog li 700 degree, haum rau me me siab - kub daim ntawv thov.

 

Cov ntawv thov tseem ceeb:

Automotive Trim:Sab nrauv trim, moldings, log npog, thiab cov khoom dai kom zoo nkauj uas yuav tsum tau tiv thaiv txoj kev ntsev thiab de- cov tshuaj icing.

Khoom siv hauv chav ua noj:Cov dab dej, cov txee, thiab cov chaw npaj zaub mov raug rau cov zaub mov acids, kua txiv hmab txiv ntoo, thiab cov tshuaj ntxuav.

Architectural Applications:vov tsev, gutters, thiab downspouts nyob rau hauv ntug dej hiav txwv los yog de-icing ntsev ib puag ncig.

Khoom noj khoom haus:Cov cuab yeej ua lag luam hauv chav ua noj thiab cov khoom noj khoom haus yuav tsum muaj kev tiv thaiv corrosion zoo.

Thaum tshav kub kub Exchangers:Cov khoom siv hauv cov ntawv thov nrog cov tshuaj chloride me me.

Cov Khoom Siv Hluav Taws Xob:Cov khoom yuav tsum tau txhim kho corrosion kuj nyob rau hauv lub tshuab ntxuav tais diav thiab ntxhua khaub ncaws.

Solar Water Heaters:Absorber daim hlau thiab cov khoom sib sau ua ke hauv thaj chaw uas muaj dej tawv los yog muaj cov tshuaj chloride tsawg.

 

434 (1.4113) piv rau 430 (1.4016) thiab 304 (1.4301) li cas?
434 muaj kev tiv thaiv corrosion zoo dua li 430 vim nws qhov sib ntxiv ntawm molybdenum, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj chloride- muaj ib puag ncig zoo li txoj kev ntsev thiab cov ntug dej hiav txwv. Thaum 430 tuaj yeem pom pitting thiab staining nyob rau hauv cov xwm txheej no, 434 muab kev tiv thaiv zoo dua, txuas ntxiv kev pab cuam lub neej nyob rau hauv ib puag ncig corrosive. Piv rau 304, 434 muaj qhov zoo sib xws ntawm corrosion kuj nyob rau hauv ntau qhov chaw me me mus rau nruab nrab tab sis tsis tshua kim thiab nqi ntau dua - ruaj khov vim nws cov ntsiab lus qis nickel (tsis muaj nickel ntxiv). Txawm li cas los xij, 434 tsis phim 304 qhov kev tiv thaiv corrosion nyob rau hauv ib puag ncig hnyav heev xws li cov kua qaub muaj zog lossis siab -chloride tej yam kev mob, thiab yog hlau nplaum. Nws feem ntau xaiv raws li tus nqi- siv tau zoo rau 304 rau cov ntawv thov uas tsis tas yuav muaj qhov corrosion siab tshaj plaws tab sis qhov twg 430 tsis txaus.

 

Dab tsi yog qhov kev txiav txim siab vuam rau 434?
Vuam 434 tuaj yeem nyuaj dua li qib austenitic vim nws cov qauv ferritic. Cov ntsiab lus tseem ceeb suav nrog:

Cov tswv yim siv hluav taws xob qis qis tau pom zoo kom txo qis kev loj hlob ntawm cov qoob loo hauv tshav kub- cuam tshuam thaj chaw

Preheating (150-200 degree) tej zaum yuav muaj txiaj ntsig rau cov ntu tuab kom txo tau cov thermal stress

Austenitic muab tub lim hlau (309L lossis 316L) raug pom zoo rau kev siv vuam zoo dua thiab kom tsis txhob embrittlement

Tshaj tawm -weld annealing tej zaum yuav tsum tau rov qab ductility rau cov ntawv thov tseem ceeb

Kev tiv thaiv vuam yog feem ntau nyiam rau daim ntawv thov nyias nyias

Rau cov ntaub ntawv kho kom zoo nkauj, laser vuam yuav muab cov cua sov tsawg heev - cuam tshuam thaj chaw thiab qhov chaw zoo

Vuam yuav tsum tau ua nyob rau hauv lub annealed mob kom pom tau zoo

 

Qhov ntsuas kub li cas yog 434 haum rau?
434 yog tsim rau kev pabcuam txog li 700℃(1290℃F) rau kev ua haujlwm tas mus li. Nws tuav tau zoo oxidation tsis kam nyob rau hauv no ntau yam, ua rau nws haum rau automotive pa system Cheebtsam (nruab nrab rau nram qab seem), tshav kub exchangers, thiab lwm yam nruab nrab -kub daim ntaub ntawv. Rau cov ntawv thov uas yuav tsum tau muaj peev xwm kub siab dua, qib nrog cov ntsiab lus chromium siab dua xws li 446 (1.4762) lossis qib austenitic xws li 309/310 yuav tsim nyog dua. Ntawm qhov kub siab, 434 tuav lub zog zoo thiab tiv thaiv qhov ntsuas, tab sis ntev ntev ntawm qhov kub siab tshaj 700℃tuaj yeem ua kom oxidation.

 

Nrhiav kev ntseeg siab ntawm 1.4113 / 434 Stainless Hlau?
GNEE Steel cov khoom siv tus nqi - zoo 434 (1.4113) stainless hlau hauv cov ntawv, coil, thiab cov ntaub ntawv strip, zoo tagnrho rau kev tsim tsheb, khoom siv hauv chav ua noj, thiab cov ntawv thov vaj tsev uas xav tau kev txhim kho corrosion. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab kev txhawb nqa suav nrog kev txiav, khoov, kos duab sib sib zog nqus, thiab cov kev pabcuam tiav. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.