Carbon Steel vs Stainless hlau
Hlau yog ib qho hlau ua los ntawm hlau thiab carbon. Cov pa roj carbon feem pua tuaj yeem sib txawv nyob ntawm qib, thiab feem ntau nws nyob nruab nrab ntawm 0.2% thiab 2.1% los ntawm qhov hnyav. Txawm hais tias cov pa roj carbon yog cov khoom tseem ceeb alloying rau hlau qee yam khoom xws li Tungsten, chromium, manganese kuj tuaj yeem siv rau lub hom phiaj. Ntau hom thiab ntau npaum li cas ntawm cov khoom siv alloying txiav txim siab hardness, ductility thiab tensile zog ntawm steel. Alloying lub luag haujlwm yog lub luag haujlwm tswj xyuas cov qauv siv lead ua lattice ntawm cov hlau los ntawm kev tiv thaiv kev tawg ntawm cov hlau atoms. Yog li, nws ua raws li tus neeg sawv cev hardening hauv steel. Qhov ceev ntawm cov hlau txawv ntawm 7, 750 thiab 8, 050 kg / m 3, thiab qhov no cuam tshuam los ntawm cov khoom sib xyaw ua ke. Kev kho cua sov yog txheej txheem uas hloov cov khoom siv ntawm cov hlau. Qhov no yuav cuam tshuam rau ductility, hardness thiab hluav taws xob thiab thermal zog ntawm steel.
Muaj ntau hom hlau xws li carbon steel, me me steel, stainless hlau, thiab lwm yam. Hlau feem ntau yog siv rau kev tsim kho. Cov tsev, chaw ntau pob, railway lem, txuas hniav yog ob peb qhov chaw ntawm ntau qhov chaw uas siv hlau hnyav heev. Tsis tas li ntawd, lawv tau siv hauv tsheb, nkoj, dav hlau, tshuab, thiab lwm yam. Feem ntau ntawm cov khoom siv hauv tsev niaj hnub no kuj ua los ntawm cov hlau. Tam sim no, feem ntau cov rooj tog kuj tau hloov los ntawm cov khoom steel. Thaum cov hlau siv rau cov ntawv thov no, nws yog ib qho tseem ceeb kom ntseeg tau lawv cov kav ntev. Ib qho tsis zoo ntawm kev siv hlau yog nws txoj kev nyiam corrode, thiab tau muaj ntau yam kev ntsuas los txo lossis tshem tawm corrosion ntawm hlau. Stainless hlau thiab galvanized steel yog ob qho piv txwv ntawm cov hlau uas muaj peev xwm tiv thaiv corrosion tau zoo.
Carbon Steel
Carbon steel yog siv los qhia cov hlau nrog carbon ua lub ntsiab alloying. Hauv cov pa roj carbon steel, cov khoom tshwj xeeb yog txhais los ntawm cov pa roj carbon ntau nws muaj. Rau cov hlau no, cov nyiaj ntawm lwm cov hlau alloying xws li chromium, manganese, cob alt, tungsten tsis tau txhais.
Muaj plaub hom carbon steel. Qhov kev faib tawm no yog nyob ntawm cov ntsiab lus carbon. Cov pa roj carbon me me thiab cov hlau tsis tshua muaj cov pa roj carbon tsawg heev. Muaj peb hom carbon steel li nruab nrab carbon steel, siab carbon steel thiab ultra high carbon steel. Hauv cov pa roj carbon ntau dua, cov pa roj carbon ntau txawv ntawm 0.30-1.70% los ntawm qhov hnyav. Cov pa roj carbon nruab nrab muaj 0.30-0.59% cov ntsiab lus carbon, hos cov hlau siab muaj 0.6-0.99%. Ultra siab carbon steel muaj 1.0-2.0% ntawm cov ntsiab lus carbon. Lawv tuaj yeem raug kho cua sov kom tiav. Yog li ntawd, feem ntau cov no muaj zog heev thiab nyuaj. Txawm li cas los xij, qhov ductility tuaj yeem qis.
Stainless hlau
Stainless steel txawv ntawm lwm cov hlau alloys vim nws tsis corrode los yog xeb. Tsis tas li ntawd, nws muaj lwm yam khoom tseem ceeb ntawm steel, raws li tau hais los saum no. Stainless hlau yog txawv los ntawm cov hlau vim muaj cov chromium tam sim no. Nws muaj tsawg kawg yog 10.5% mus rau 11% chromium tus nqi los ntawm huab hwm coj. Yog li nws tsim ib txheej chromium oxide uas yog inert. Qhov no yog vim li cas rau tsis muaj peev xwm corrosion ntawm stainless hlau. Yog li ntawd, stainless hlau yog siv rau ntau lub hom phiaj xws li nyob rau hauv lub tsev, monuments, tsheb, machinery, thiab lwm yam.
Carbon Steel vs Stainless hlau
