Hlau txhaj tshuaj yog ib qho kev siv hlau abrasive, feem ntau siv hauv kev kho deg, tshem tawm xeb, thiab ua kom muaj zog. Cov qauv txhaj tshuaj steel feem ntau yog categorized raws li cov khoom siv, hardness, thiab loj. Cov qauv txhaj tshuaj muaj xws li G10, G14, G16, G18, G25, G40, G50, thiab G80, qhov twg tus lej sawv cev rau txoj kab uas hla (hauv millimeters). Piv txwv li, G10 qhia txoj kab uas hla ntawm 0.10-0.30mm, thaum G80 qhia txoj kab uas hla ntawm 0.80-1.20mm. Cov hlau txhaj tshuaj feem ntau yog ua los ntawm siab- carbon steel, qis- carbon steel, thiab stainless hlau, nrog rau cov khoom sib txawv uas haum rau kev kho deg sib txawv. High- carbon hlau txhaj tshuaj muaj lub siab hardness thiab yog haum rau high-strength xeb tshem tawm thiab ntxiv zog txheej txheem; low-carbon steel txhaj tshuaj muaj qhov zoo heev toughness thiab yog haum rau kev kho deg ntawm precision Cheebtsam; thiab stainless hlau txhaj tshuaj, nrog nws cov corrosion kuj, yog haum rau daim ntaub ntawv uas yuav tsum tau high deg huv si. Kev xaiv ntawm kev txhaj tshuaj steel yuav tsum yog raws li kev xav tau ntawm cov khoom siv ua haujlwm, txheej txheem kev kho mob, thiab cov khoom yuav tsum tau ua.
