Pure Iron vs. Low-Carbon Steel
Thaum sib piv cov khoom siv hlau, cov hlau ntshiab thiab cov hlau tsis tshua muaj cov pa roj carbon monoxide txhua qhov qhia txog cov yam ntxwv thiab kev siv. Hauv qab no yog cov ncauj lus kom ntxaws sib piv ntawm cov hlau ntshiab thiab cov pa roj carbon tsawg nyob rau hauv cov nqe lus ntawm lawv cov muaj pes tsawg leeg, txhua yam khoom, thiab kev siv raug.
Hlau ntshiab
Cov hlau ntshiab, feem ntau hu ua wrought hlau lossis refined hlau, yog ib qho khoom tsim los ntawm cov hlau (Fe) nrog cov impurities tsawg. Nws yog characterized los ntawm nws cov silvery-dawb tsos thiab txheeb ze softness.
Kev sib xyaw:
Cov hlau ntshiab muaj yuav luag tag nrho ntawm cov khoom hlau, nrog cov kab ntawm impurities.
Cov khoom:
Ductility thiab malleability: Cov hlau ntshiab yog cov ductile thiab malleable, txhais tau tias nws tuaj yeem khoov tau yooj yim, ncab, thiab ua rau ntau yam duab yam tsis muaj kev tawg.
Zoo hluav taws xob thiab thermal conductivity: Nws ua hluav taws xob thiab cua sov zoo.
Tsawg tensile lub zog thiab hardness: Vim nws purity, cov hlau ntshiab tsis muaj lub zog tensile thiab hardness xav tau rau cov qauv siv.
Susceptibility rau corrosion: Cov hlau ntshiab yog qhov ua rau corrosion thaum raug oxygen thiab dej, txawm tias qhov no tuaj yeem txo tau los ntawm kev sib tsoo lossis txheej txheej txheej.
Siv:
Cov hlau ntshiab feem ntau yog siv rau hauv kev siv hluav taws xob vim nws cov conductivity zoo heev.
Nws kuj yog ua hauj lwm nyob rau hauv zus tau tej cov wrought hlau, uas muaj nuj nqis rau nws aesthetic thov thiab muaj peev xwm muab tau yooj yim cam khwb cia rau hauv intricate designs.
Tsawg-Carbon Steel
Tsawg-carbon steel yog hom hlau uas muaj cov pa roj carbon tsawg tsawg, feem ntau tsawg dua 0.30%. Qhov kev sib xyaw no ua rau nws yooj yim dua thiab yooj yim rau vuam dua li cov pa roj carbon ntau.
Kev sib xyaw:
Tsawg-carbon steel muaj hlau (Fe) nrog ib feem me me ntawm cov pa roj carbon (C), nrog rau cov kab ntawm lwm cov ntsiab lus xws li manganese (Mn), silicon (Si), phosphorus (P), thiab sulfur (S) .
Cov khoom:
Zoo ductility thiab toughness: Tsawg-carbon steel tuaj yeem khoov thiab ncab yam tsis muaj kev tawg, ua rau nws tsim nyog rau kev ua haujlwm.
Nruab nrab tensile zog thiab hardness: Txawm tias tsis muaj zog npaum li cov pa roj carbon ntau, cov pa roj carbon tsawg muaj lub zog txaus rau ntau yam kev siv.
Zoo weldability: Nws cov ntsiab lus carbon tsawg ua rau nws yooj yim dua rau vuam dua li cov pa roj carbon ntau, txo qhov kev pheej hmoo ntawm kev tawg thiab embrittlement.
Nruab nrab corrosion kuj: Tsawg-carbon steel yog qhov ua rau corrosion, tab sis qhov no tuaj yeem txo tau los ntawm galvanizing, pleev xim, lossis lwm yam txheej txheej tiv thaiv.
Siv:
Tsawg-carbon steel yog dav siv nyob rau hauv tsheb, kev tsim kho, thiab tshuab kev lag luam vim nws ua ke ntawm ductility, weldability, thiab nruab nrab lub zog.
Nws yog feem ntau siv rau hauv kev tsim cov khoom siv, xws li kab teeb, kab, thiab thav duab, nrog rau kev tsim cov ntawv hlau thiab cov khoom siv hlau.