Cov khoom sib xyaw ua ke ntawm cov hlau

Cov khoom siv ntawm cov hlau qhov chaw: cov hlau tsis huv thiab cov hlau tsis huv (lossis cov hlau tsis sib haum). Hlau: Lub zog ntawm cov hlau nrog cov ntsiab lus carbon ntawm 2% rau 4.3% yog cam khwb cia hlau, thiab cov hlau ntawm cov hlau nrog cov pa roj carbon ntsiab lus ntawm feem ntau 0.03% mus rau 2% yog hlau. Hauv Fe-C alloys, ntau cov ntsiab lus alloying yog lub hom phiaj ntxiv kom txhim kho lub zog, tawv tawv, hnav tsis kam thiab corrosion kuj ntawm hlau. Feem ntau siv cov khoom tsis haum yog Si, Mn, Cr, Ni, Mo, W, V, Ti, Nb, B, thiab lwm yam, ua rau ntau yam ntawm cov txhuas nrum hlau lossis cov hlau tsis huv.