316 stainless hlau thiab 304 stainless hlau
Gnee steel
Dab tsi yog qhov txawv ntawm 316 stainless hlau thiab 304 stainless hlau
Lub ntsiab sib txawv ntawm 304 thiab 316 stainless hlau yog qhov sib ntxiv ntawm molybdenum mus rau 316, uas tau txhim kho nws corrosion tsis kam, tshwj xeeb tshaj tawm tsam chlorides. Thaum ob qho tib si yog Antenenitic Stainless hlau, 316 feem ntau kim dua vim nws cov ntsiab lus molybdenum thiab yog qhov zoo dua rau cov tub rog hnyav xws li cov roj av lossis tshuaj lom neeg.
Gnee steel
Dab tsi yog qhov tsis zoo ntawm 316 stainless hlau?
Thaum 316 stainless hlau muaj kev tiv thaiv corrosion zoo heev, nws muaj qee qhov teeb meem. Lub ntsiab drawbacks yog nws cov nqi siab dua piv rau lwm qib, xws li 304, thiab nws cov haujlwm tsis zoo thiab muaj peev xwm. Nws kuj raug rau kev ntxhov siab corrosion tawg hauv qee qhov chaw hnyav.
316 stainless hlau vs 304 stainless hlau
Cov Ntsiab Lus: Dab tsi hauv kev sib xyaw?
Ob 304 thiab 316 stainless hlau yog hlau-raws li cov roj hlau nrog ntxiv cov chromium thiab npib tsib xee, uas ua rau muaj zog thiab tshuab zog. Txawm li cas los xij, qhov sib txawv ntawm lawv cov lus dag nyob rau hauv ib qho tseem ceeb lub caij: molybdenum.
304 Stainless Hlau muaj 18-20% chromium thiab 8-10.5% npib tsib, muab nws zoo heev corrosion.
316 Stainless hlau sib xyaw 2-3% Molybdenum, tseem txhim kho nws kev tiv thaiv nws txoj kev tiv thaiv mus rau chlorides, ntsev dej, thiab kev lag luam chemical.
Qhov no me me ntawm Molybdenum tuaj yeem muaj kev cuam tshuam tseem ceeb, feem ntau txiav txim siab qhov qib ntawm stainless hlau yog qhov zoo tshaj rau cov neeg hnyav.
Cov Khoom Siv Neeg Kho Tshuab
Thaum muaj pes tsawg leeg qhia txog kev pleev tshuaj ntawm txhua tus hlau tsis muaj ib yam dab tsi qhia rau peb tias kev xaiv cov khoom siv, kev xaiv, lossis cov ntawv thov siab thauj khoom.
Ob 304 thiab 316 tus hlau tsis muaj npe paub txog lawv cov cuab yeej tshwj xeeb, tshwj xeeb tshaj yog piv rau cov hlau me me lossis cov hlau ferritic stainless. Txawm li cas los xij, hloov maj mam sib txawv tuaj yeem pab txhawb cov cav thiab cov tsim qauv xaiv cov khoom siv tau zoo tshaj plaws thiab ruaj khov rau lawv cov phiaj xwm.
Corrosion Kuj
Yog tias muaj ib thaj chaw uas 316 stainless hlau tiag tiag ci ntsa iab, nws nyob ntawm no.
Thaum ob qho tib si 304 thiab 316 stainless hlau yog tsis tshua muaj xeb thiab corrosive, tshwj xeeb yog cov uas muaj cov tshuaj corrosive (xws li cov dej qab ntsev (xws li cov dej ntsev) thiab cov tshuaj hnyav.
Ib sab-los-sab sib piv ntawm 304 thiab 316 stainless hlau hauv cov tshuaj ntsev kuaj:
304: General Corrosion Kuj
304 Stainless hlau muaj kev tiv thaiv corrosion zoo tshaj plaws rau cov chaw ib puag ncig hauv qab no:
Feem ntau oxidizing cov kua qaub
Txhua hnub ib puag ncig mob (av noo, nag)
Raug rau cov zaub mov thiab dej haus
Nws ua tau zoo hauv cov ntawv thov sab hauv tsev thiab sab nraud ib puag ncig thiab ib qho kev xaiv sab nraud sab nraum zoov rau cov ntawv thov hauv qab no:
Khoom Siv Chav Ua Noj
Cov Khoom Siv Ua Khoom Noj
Tsev qauv qauv
Kev Tso Tsheb Hlau Luam
Cov kev txwv: 304 stainless hlau yog cov raug rau kev pitting corrosion hauv chloride ib puag ncig, xws li dej hiav txwv, kev siv pas dej lossis pas dej.
316: Tshaj tawm zoo dua hauv cov mob hnyav
Vim nws li 2-3% Molybdenum cov ntsiab lus, 316 tiv thaiv:
Seewwater thiab cov tub rog chaw ib puag ncig
Muaj chemical (acids, chlorides, alkalis)
DE-icing ntsev thiab kev tshuaj lom neeg
Qhov no ua 316 txoj kev xaiv zoo tshaj plaws rau cov ntawv thov hauv qab no:
Cov Tub Rog Tub Rog (Nkoj Fittings, Dock Fasteners)
Cov Khoom Siv Tshuaj
Sab nraum zoov ntim hauv ntug hiav txwv lossis cov chaw muaj kuab paug
Cov Khoom Siv Kho Mob thiab Tshuaj (Qhov uas paug tsis zoo)
Ntxiv Cov Txom Nyem: 316 tseem tiv taus ntau dua cov pob zeb thiab kev nyuaj siab corrosion thiab kev ntxhov siab corrosion ntau dua 304-ib qho tseem ceeb hauv kev ntxhov siab lossis hauv qab dej ib puag ncig.
Gnee steel tshwj xeeb hauv kev tsim khoom thiab muag ntau ntawm cov khoom lag luam ntau ntawm stainless hlau, suav nrog 304, 904, 904205, 2205, thiab 31205, thiab 31205, thiab 31205, thiab 31205, thiab 31205, thiab 3120l stainless hlau. Gnee Steel cov khoom yog dav siv nyob rau hauv Aerospace, tshuaj, fais fab, thiab peb muaj cov zog hluav taws xob ua kom nruj rau cov neeg siv khoom. Rau cov lus qhia txog stainless hlau nqe lus nug lossis customized alloy kev daws teeb meem, thov hu rau peb rau ib nqe lusru@gneesteelgroup.com.
