Qhov sib txawv ntawm 316L Stainless Hlau thiab 304L Stainless Hlau
Gnee Steel
Qhov sib txawv ntawm 316L Stainless Hlau thiab 304L Stainless Hlau
Qhov sib txawv tseem ceeb ntawm 304L thiab 316L stainless hlau nyob rau hauv lawv cov ntsiab lus molybdenum. 316L muaj molybdenum, muab nws superior corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv chloride / marine ib puag ncig. Ob leeg "L" qib stainless hlau muaj qhov zoo tshaj plaws weldability vim lawv cov ntsiab lus carbon tsawg, ua rau 304L haum rau lub hom phiaj dav dav, thaum 316L nyiam siv tshuaj hnyav, dej hiav txwv, thiab kev siv kho mob, txawm tias nws tus nqi siab dua.
Gnee Steel
Dab tsi yog kev siv ntawm 304L stainless hlau?
304L stainless hlau alloy yog dav siv nyob rau hauv ntau yam khoom siv hauv tsev thiab kev lag luam, xws li: cov khoom siv ua zaub mov, tshwj xeeb tshaj yog nyob rau hauv npias brewing, mis nyuj, thiab cawv ua lag luam; chav ua noj countertops, dab dej, dab dej dab dej, khoom siv, thiab khoom siv.
304L Stainless hlau
304L stainless hlau muaj cov ntsiab lus carbon tsawg, ua rau muaj kev tiv thaiv corrosion thiab oxidation tsis kam. Nws kuj muaj qhov zoo tshaj plaws weldability, ductility, thiab formability, ua rau nws zoo tagnrho rau vuam thiab fabrication rau ntau yam duab. Tsis tas li ntawd, nws cov khoom siv kho tshuab ua rau nws lub zog siab thiab lub teeb yuag. Thaum raug kub siab tshaj 800℃(1472℃F), 304L stainless hlau tuaj yeem ua rau sensitized, txhais tau hais tias chromium carbides precipitate ntawm cov ciam teb, ua rau muaj zog intergranular corrosion. Txawm li cas los xij, qhov no tuaj yeem tiv thaiv tau yooj yim los ntawm kev ntxiv cov khoom ruaj khov xws li titanium lossis niobium rau cov hlau.
316L Stainless hlau
316L stainless hlau yog ib qho ultra- qis carbon version ntawm 316 alloy. Zoo li 304L, nws muaj qhov zoo formability thiab weldability, haum rau ntau yam kev siv dav dav. Nws muaj cov ntsiab lus molybdenum ntau dua li lwm hom stainless hlau, uas ua rau muaj kev tiv thaiv corrosion zoo dua thiab siab dua - kub lub zog piv rau lwm qib. Nws lub zog tawm los ntawm 200 MPa (tsawg carbon) txog 480 MPa (siab carbon). Tsis tas li ntawd, nws pom zoo qaug zog tiv thaiv nyob rau hauv cyclic loading tej yam kev mob.
Cov tub ntxhais sib txawv ntawm 304L thiab 316L stainless hlau
| Element | 304L | 316L |
|---|---|---|
| Chromium (Cr) | 18–20% | 16–18% |
| Nickel (Ni) | 8–12% | 10–14% |
| Molybdenum (hli) | Tsis muaj | 2–3%(Qhov tseem ceeb ntxiv) |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.03% (Cov pa roj carbon tsawg) | Tsawg dua lossis sib npaug li 0.03% (Cov pa roj carbon tsawg) |
Mechanical zog ntawm 304L thiab 316L stainless hlau
| Khoom | 304L | 316L |
|---|---|---|
| Tensile zog | 485-515 MPa | 485-620 MPa |
| Yield zog | 170-310 MPa | 170-310 MPa |
| Elongation | 40–50% | 40–50% |
| Hardness (Brinell) | ~ 201 HB | ~ 217 HB |
304L thiab 316L corrosion kuj
304L:
Resistant atmospheric corrosion, dej tshiab, thiab me ntsis acids.
Tsis muaj zog: Ua rau pitting/crevice corrosion nyob rau hauv chloride-nplua nuj ib puag ncig (xws li, ntug hiav txwv dej, de-icing ntsev).
316L:
Superior tiv thaiv chlorides, sulfuric acid, thiab brine.
Zoo tagnrho rau marine, tshuaj ua, thiab kev siv tshuaj.
Kev tsim thiab vuam cov khoom ntawm 304L thiab 316L stainless hlau
Ob qib yog yooj yim weldable thiab formable, tab sis:
304L:
Tsis tshua muaj carbide nag lossis daus (vim cov pa roj carbon tsawg).
Tsis muaj kev tshaj tawm -weld annealing yuav tsum tau siv rau feem ntau daim ntawv thov.
316L:
Yuav tsum tau tswj cov cua sov thaum lub sij hawm vuam kom khaws cov corrosion kuj.
Siv 316L muab tub lim rau vuam kom tswj cov ntsiab lus molybdenum.
Daim ntawv thov los ntawm Kev Lag Luam
| Kev lag luam | 304L Daim ntawv thov | 316L Daim ntawv thov |
|---|---|---|
| Khoom noj & dej haus | Tank, conveyors, tais diav | Cov cuab yeej siv hauv qhov chaw ntsev / acidic |
| Kev tsim vaj tsev | Railings, trim, ru tsev | Cov qauv ntug hiav txwv, cov pas dej da dej |
| Tshuaj | Cia tank, kav dej | Sterilization khoom, reactors |
| Tubrog nkoj | N/A | Nkoj fittings, offshore rigs |
| Tshuaj | Cov ntim tshuaj lom neeg me | Acid cia tank, li qub |
Gnee Steel tshwj xeeb hauv kev tsim thiab muag ntawm ntau yam khoom siv stainless hlau, suav nrog 304, 316, 321, 904, 904L, 2205 duplex stainless hlau, thiab 316L stainless hlau. Gnee Steel cov khoom siv dav siv hauv chav ua noj, aerospace, tshuaj lom neeg, tsim hluav taws xob, tsheb, thiab kev lag luam nuclear. Peb kuj muab cov kev daws teeb meem stainless hlau customized raws li cov neeg siv khoom xav tau. Yog xav paub ntxiv txog cov nqi stainless hlau lossis cov kev daws teeb meem customized, thov emailru@gneesteelgroup.comrau ib nqe lus.