Qhov sib txawv tseem ceeb ntawm stainless hlau thiab carbon hlau yog qhov tseem ceeb alloying hauv cov hlau yog carbon thaum nws yog chromium hauv stainless hlau.
Stainless steel thiab carbon steel yog hlau alloys, uas poob rau hauv qeb ntawm cov hlau. Cov hlau muaj cov pa roj carbon ntau txog 2% los ntawm qhov hnyav. Peb tuaj yeem sib txawv stainless hlau thiab carbon hlau raws li lawv cov alloying ntsiab thiab lawv cov compositions.
Stainless Hlau yog dab tsi?
Raws li lub npe cuam tshuam, stainless hlau yog tiv taus corrosion, tsis zoo li lwm cov hlau. Hauv daim ntawv no ntawm cov hlau, cov chromium feem pua yog tsawg kawg yog 10.5% ntawm qhov hnyav. Lub corrosion kuj ntawm stainless hlau yog vim muaj ntau ntawm chromium nyob rau hauv cov hlau no. Nyob ntawd, chromium tsim ib qho kev pom tsis pom, nyias thiab ua raws oxide txheej, uas ua rau lub ntsej muag passive. Txhawm rau tsim cov txheej txheem oxide passive no, cov hlau yuav tsum muaj cov chromium txaus, thiab peb yuav tsum khaws cia rau hauv qhov chaw muaj pa oxygen. Cov txheej passive tiv thaiv cov hlau hauv qab, los ntawm kev npog nws ntawm huab cua thiab dej. Tsis tas li ntawd, yog tias peb khawb cov oxide txheej, nws kho nws tus kheej. Vim li no, chromium feem pua ntawm cov hlau tsis muaj steel yuav tsum ntau tshaj 10.5% los ntawm qhov hnyav.
Daim duab 01: Cov Khoom Siv Hlau Stainless
Lwm yam tsis yog chromium thiab carbon, stainless hlau muaj silicon, phosphorous, manganese, sulfur, nickel thiab molybdenum. Feem ntau, stainless hlau muaj cov pa roj carbon ntau ntawm 0.03 - 1% los ntawm qhov hnyav. Yog hais tias cov ntsiab lus carbon nce mus rau ntau tshaj qhov ntawd, nws yuav txo tau cov khoom tsis zoo ntawm cov hlau no los ntawm kev ua Cr23C6, thiab txo qis Chromium ua rau passive oxide txheej. Tsis tas li ntawd, peb tuaj yeem faib cov hlau stainless li Austenitic, Ferritic, Martensitic, Precipitation-Hardening, Duplex thiab Cast raws li lawv cov qauv crystalline. Vim muaj qee yam ntawm cov hlau alloying, stainless hlau tuaj yeem ua tsis muaj hlau nplaum.
Carbon Steel yog dab tsi?
Lwm yam tshaj li cov hlau tsis muaj steel, tag nrho lwm cov hlau yog carbon steels. Carbon steel muaj txog li 2% carbon, mus txog 1.65% manganese, mus txog 0.6% silicon thiab mus txog 0.6% tooj liab los ntawm qhov hnyav. Raws li cov ntsiab lus carbon, peb tuaj yeem faib hom hlau no ntxiv rau hauv cov hlau tsis tshua muaj carbon steel, nruab nrab carbon steel, thiab cov pa roj carbon siab. Ntxiv mus, cov alloy no tsis tshua muaj corrosion resistant dua stainless hlau. Vim li no, peb yuav tsum tsis txhob siv nws nyob rau hauv cov huab cua corrosive los yog lwm yam peb yuav tsum tau coated nrog ib tug tiv thaiv txheej.
Sib nrug ntawm qhov ntawd, cov hlau tsis tshua muaj nqi pheej yig dua li cov hlau tsis muaj steel vim nws cov ntsiab lus alloying yog carbon, thaum chromium kim kim yog stainless hlau 'lub ntsiab alloying. Daim ntawv hlau no ua rau muaj zog thiab nyuaj nrog cov ntsiab lus ntawm cov pa roj carbon ntau, tab sis nws txo qis cov ductility. Peb tuaj yeem hloov kho qhov xav tau ntawm cov hlau no los ntawm kev kho cua sov.
Daim duab 02: Carbon Steel Bars
Stainless steel thiab carbon steel yog qhov muaj txiaj ntsig zoo rau ntau daim ntawv thov xws li skyscrapers, txuas hniav, kev lag luam aviation, mining, offshore kev lag luam, cov kav dej thiab lwm yam. Nyob ntawm cov ntsiab lus alloying thiab lawv cov muaj pes tsawg leeg, lawv cov khoom sib txawv yooj yim. Yog li ntawd, stainless hlau lossis carbon hlau yuav tsum raug xaiv raws li qhov yuav tsum tau ua ntawm daim ntawv thov.
Qhov txawv ntawm Stainless Hlau thiab Carbon Steel yog dab tsi?
Stainless steel yog cov hlau alloy nrog tsawg kawg ntawm 10.5% chromium cov ntsiab lus los ntawm huab hwm coj thiab siab tshaj plaws ntawm 1.2% carbon los ntawm huab hwm coj thiab carbon steel yog hlau uas lub ntsiab alloying yog carbon. Qhov sib txawv tseem ceeb ntawm stainless hlau thiab carbon hlau yog tias lub ntsiab alloying hauv cov hlau yog carbon thaum nws yog chromium hauv stainless hlau. Tsis tas li ntawd, qhov sib txawv ntxiv ntawm stainless hlau thiab carbon hlau yog qhov tseem ceeb ntawm stainless hlau yog chromium, carbon, silicon, phosphorous, manganese, sulfur, npib tsib xee thiab molybdenum thaum cov hlau yog carbon, manganese, silicon thiab tooj liab.
Cov lus qhia hauv qab no ntawm qhov sib txawv ntawm cov hlau tsis muaj steel thiab carbon steel qhia cov ntaub ntawv ntxiv ntawm qhov sib txawv no.
Summary – Stainless hlau vs Carbon Steel
Stainless steel thiab carbon steel yog ob hom alloys. Qhov sib txawv tseem ceeb ntawm stainless hlau thiab carbon hlau yog qhov tseem ceeb alloying hauv cov hlau yog carbon thaum nws yog chromium hauv stainless hlau.
