Classified los ntawm Alloy Element Cov ntsiab lus
1) Tsawg- carbon steel: Cov hlau no muaj me me lossis tsis muaj lwm yam alloying, thiab nws cov ntsiab lus carbon feem ntau tsis tshaj 0.2%.
2) Tsawg- alloy cua sov- cov hlau tsis muaj zog: Cov hlau no muaj ib lossis ntau dua alloying ntsiab lus, tab sis cov ntsiab lus tsis siab; Tag nrho cov ntsiab lus ntawm alloying nyob rau hauv cov hlau feem ntau tsis tshaj 5%, thiab cov ntsiab lus carbon tsis tshaj 0.2%.
3) High- alloy tshav kub- cov hlau tsis muaj zog: Cov hlau no muaj ntau cov ntsiab lus alloying, thiab cov ntsiab lus alloy feem ntau yog siab tshaj 10%, thiab txawm tias siab li 30% lossis ntau dua.
Classified los ntawm Steel Properties
1) Oxidation- steel resistant (los yog tshav kub-resistant non-scaling steel): Hom hlau no muaj oxidation zoo thiab siab -kub corrosion kuj ntawm kub kub (feem ntau 550-}1200 degree), thiab kuj muaj ib tug tej yam kub-kub zog. Nws yog siv los tsim ntau yam khoom siv rau cov cua kub cua sov thiab cov cua kub sib txawv, nrog rau cov khoom sib txuas rau cov cua sov turbines, boiler hangers, cua sov rauv hauv qab daim hlau thiab cov chais, thiab cov tub rauv. Oxidation tsis kam yog qhov taw qhia tseem ceeb, thiab cov khoom ntawm lawv tus kheej tsis ris lub siab loj.
2) High-kub lub zog steel: Ntawm qhov kub thiab txias (feem ntau yog 450-900 degree), nws tuaj yeem tiv taus kev ntxhov siab ntxiv thiab tseem muaj oxidation zoo heev thiab kub-kub roj corrosion kuj. Nws yog feem ntau kuj yuav tsum tau tiv thaiv lub sij hawm hloov pauv kev ntxhov siab. Nws yog feem ntau yog siv rau rotors thiab hniav ntawm chav turbines thiab roj turbines, superheaters ntawm boilers, bolts thiab springs ua hauj lwm nyob rau hauv kub kub, noj thiab tso li qub ntawm cov combustion engine, thiab roj av hydrogenation reactors.
Classified los ntawm Kev Siv Cov Hlau
Thaum tshav kub kub-resistant steel rau industrial furnaces: Ntxiv rau cov reactors, fais fab nroj tsuag boilers, thiab petrochemical industrial furnaces, nws yog dav siv nyob rau hauv metallurgy, machinery, tsev cov ntaub ntawv, lub teeb kev lag luam, thiab lwm yam lag luam raws li ntau yam cua sov-resistant Cheebtsam nyob rau hauv ntau yam furnaces, xws li tshav kub exchangers, cua sov rau cov hlab ntsha, thiab cov hlab ntsha. Ntxiv nrog rau kev siv cov cua sov deformed-cov khoom siv hlau tsis muaj zog xws li cov phaj, cov raj, thiab cov tuav, cov cua kub ntau ntau- cov hlau tsis muaj zog kuj tseem siv tau. Piv txwv muaj xws li ntau yam annealing furnace npog nyob rau hauv metallurgical nroj tsuag, muffle furnaces, radiant tubes, them thav ntawv, thiab saw siv nyob rau hauv kev tswj cua kub cua sov rauv.
