Ib txhiaCov ntsiab luspaub txog Stainless hlau
Lub ntsiab txhais ntawm stainless hlau
Stainless hlau yog cov hlau alloy uas tiv taus corrosion. Nws muaj qhov zoo nkauj zoo nkauj thiab tsis tas yuav tsum tau kho nrog cov xim lossis xim. Yog li ntawd, ntau lub tshuab hluav taws xob qhia tias lawv yog cov hlau tsis muaj steel, thiab feem ntau tsis pleev xim rau cov khoom siv dub. Cov khoom siv dub yog lub npe ntawm cov hlau zoo tib yam. Nws yuav tsum tau xeb-pov thawj.
Summary classification ntawm stainless hlau
Stainless hlau tuaj yeem muab faib ua 200 series, 300 series thiab 400 series. Ntawm lawv, 300 series yog feem ntau siv. 200 series thiab 400 series yog qhov hloov pauv ntawm 300 series hauv qee qhov ntau. Hais lus nruj me ntsis, 400 series tsis yog hu ua stainless hlau. Nws yog hu ua stainless hlau. Vim nws tsis muaj nickel, nws tuaj yeem nyiam los ntawm cov hlau nplaum. 200 series thiab 300 series yog ua los ntawm npib tsib xee, yog li tsis muaj hlau nplaum, thiab hlau tsis tuaj yeem nqus tau.
304 yog qhov ntau tshaj plaws hauv 300 series, yog li tus nqi hloov pauv ntawm 304 feem ntau tuaj yeem txiav txim siab tus nqi sib txawv ntawm tag nrho cov hlau tsis muaj steel. 200 series muaj cov nickel tsawg dua, 400 series tsis muaj npib tsib xee, thiab 300 series muaj cov nickel feem ntau, yog li 300 series yog qhov cuam tshuam tshaj plaws los ntawm tus nqi npib tsib xee.
Lub 300 series tuaj yeem muab faib ua 304, 304L, 316, 316L, 321, 309S, 310S, thiab lwm yam. Lub hauv paus rau kev sib txawv yog cov ntsiab lus ntawm ntau yam hlau, thiab cov yam ntxwv ntawm cov hlau tsis muaj steel nrog cov ntsiab lus sib txawv. Qhov txawv ntawm 304 thiab 304L nyob rau hauv Qhov sib txawv ntawm cov ntsiab lus carbon (C), band L txhais tau hais tias cov ntsiab lus carbon tsawg, kuj hu ua cov pa roj carbon tsawg, thiab qhov sib txawv ntawm 316 thiab 316L kuj yog tib yam.
Cov yam ntxwv thiab kev siv ntawm lub ntsiab stainless hlau hom
304: Raws li cov hlau siv dav, nws muaj kev tiv thaiv corrosion zoo, tiv thaiv tshav kub, tsis tshua muaj zog thiab cov khoom siv kho tshuab, ua haujlwm kub zoo xws li stamping thiab dabtsi yog khoov, tsis muaj kev kho cua sov, tsis muaj hlau nplaum, thiab qhov kub thiab txias yog rho tawm 193 degrees. Nws yog 800 degrees.
Siv: cov tais diav, cov tais diav hauv chav ua noj, lub rhaub dej kub, boilers, nws pib qhov chaw, khoom siv kho mob, khoom noj khoom haus machinery, cia caw, siab hlab ntsha (tshuaj machinery, chemical khoom).
304L: Raws li cov pa roj carbon tsawg 304 steel, nyob rau hauv ib txwm muaj, qhov kev tiv thaiv corrosion zoo ib yam li 304, tab sis tom qab vuam thiab tom qab kev ntxhov siab, nws tuaj yeem tiv taus intergranular corrosion thiab tuaj yeem tswj tau zoo yam tsis muaj kev kho cua sov. Corrosion kuj feem ntau yog siv ntawm 400 degrees.
Siv: petrochemical kev lag luam, khoom siv hauv tsev.
321 ntxiv Ti lub caij hauv 304 hlau los tiv thaiv kev sib txhuam, tsim rau qhov zoo 430 txog 900 degrees, tsis yog hlau nplaum;
Siv: Automotive tso pa tawm, cov khoom siv hluav taws xob, cov thawv ntim khoom, thiab lwm yam, uas tsis yog cov cua sov kho tom qab vuam, tsis haum rau kev ua khoom noj khoom haus vim qhov sib ntxiv ntawm Ti.
316 cov pa roj carbon tsawg, ntxiv MO lub ntsiab lus, yog li nws cov corrosion kuj thiab atmospheric corrosion kuj thiab kub siab lub zog kev ua tau zoo tshwj xeeb, tuaj yeem siv rau hauv cov xwm txheej hnyav, haum rau kev siv qis dua 900 degrees, tsis yog hlau nplaum.
Kev Siv: Cov khoom siv hauv cov dej hiav txwv, tshuaj, tshuaj zawv plaub hau, ntawv, acetic acid, chiv thiab lwm yam khoom siv, khoom noj khoom haus kev lag luam thiab cov chaw ntug dej hiav txwv, cov khoom siv tshwj xeeb tiv thaiv intergranular corrosion.
309S / 310S ob cov ntaub ntawv, nickel thiab chromium cov ntsiab lus yog qhov siab, thaum nce Si cov ntsiab lus, ua rau nws tiv taus kub thiab corrosion, uas 309S tuaj yeem tiv taus cua sov dua hauv qab 980, 310S siv qhov kub thiab txias mus txog 1200 degrees, siv tas li qhov kub thiab txias tau yog 1150 degrees thiab tsis yog magnetic.
Siv: Haum rau cov khoom siv hluav taws xob kub kub, cov khoom siv ziab khaub ncaws thiab lwm yam tseem ceeb, cov khoom siv hauv tsev, aviation, petrochemical, hluav taws xob thiab lwm yam.
200 series zoo ib yam li 304 pheej yig kev lag luam.
Siv: cov khoom siv ua zaub mov, khoom siv hauv chav ua noj, cov khoom siv ua zaub mov, lim dej, cov kaus poom mis nyuj, cov neeg siv khoom ruaj khov, tshuab ntxhua khaub ncaws, dej rhaub dej, rooj tog steel, vaj tsev kho kom zoo nkauj, kho kom zoo nkauj. Nyob rau hauv cov nqe lus ntawm qaug zog kuj, 201 muaj ib tug siab hardness, thiab lub toughness yog tsis zoo li 304, los yog cov qaug zog tsis kam ntawm 304 yog zoo dua.
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