Cov khoom siv ntawm cov saw tsav ncaj qha cuam tshuam rau nws lub zog, hnav tsis kam, thiab kev pabcuam lub neej; Yog li ntawd, cov ntaub ntawv tsim nyog yuav tsum raug xaiv raws li kev ua haujlwm tiag tiag thaum tsim thiab tsim khoom. Cov saw hlau feem ntau yog ua los ntawm cov qib siab - zoo carbon steel lossis hlau alloy. Cov saw hlau feem ntau siv cov ntaub ntawv xws li 45 steel lossis 40Mn; Tom qab ua tiav cov txheej txheem xws li stamping thiab kev kho cua sov, lawv muaj lub zog siab thiab zoo toughness, ua rau lawv tiv taus tensile thiab cuam tshuam loads.
Cov khoom tseem ceeb xws li pins, bushings, thiab rollers feem ntau yog tsim los ntawm carburizing alloy steels (xws li, 20Cr, 20CrMnTi). Cov khoom no tau txais kev kho cua sov- xws li carburizing, quenching, thiab tempering - txhawm rau txhim kho qhov tawv tawv thiab hnav tsis kam thaum tuav cov tub ntxhais tawv, yog li ua tau raws li qhov xav tau ntawm lub sijhawm ntev -, siab - zaus ua haujlwm. Sprockets feem ntau yog ua los ntawm cov khoom xws li 45 steel, 40Cr, lossis cam khwb cia hlau. Nyob ntawm kev ua haujlwm, lawv tuaj yeem ua haujlwm siab - zaus quenching lossis kho cua sov saum npoo los txhim kho cov hniav hnav tsis kam thiab txo qis hnav ntawm cov sprocket thiab cov saw.
Hauv cov haujlwm tshwj xeeb xws li kev ua zaub mov, tshuaj, thiab tshuaj lom neeg kev lag luam, cov khoom siv yuav tsum muaj kev tiv thaiv corrosion zoo heev thiab kev tu cev; yog li ntawd, cov saw hlau feem ntau yog tsim los ntawm stainless hlau (xws li, 304 lossis 316). Nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias, cov av noo siab, lossis cov xov xwm corrosive, cov saw hlau ua los ntawm corrosion-cov alloys resistant los yog cov kev kho nrog cov txheej txheem tiv thaiv-xws li galvanizing, npib tsib xee plating, los yog dub oxide tiav- tej zaum yuav raug xaiv los txhim kho corrosion kuj thiab kev pab cuam lub neej, kom ruaj khov, ntev kev ua haujlwm {8}.