1. Lub kaum sab xis steel, feem ntau hu ua lub kaum sab xis hlau, yog ib txoj hlua ntev ntawm cov hlau nrog ob sab perpendicular rau ib leeg. Nws muab faib ua lub kaum sab xis steel thiab lub kaum sab tsis sib npaug. Lub kaum sab xis hlau txhais tau hais tias nws ob sab yog sib npaug ntawm qhov dav.
2. Lub kaum sab xis steel yog cov khoom siv carbon steel siv hauv kev tsim kho. Nws yog ib qho yooj yim cross-section steel khoom. Nws yog tsuas yog siv rau hlau Cheebtsam thiab Hoobkas tsev thav ntawv. Nws yuav tsum tau zoo weldability, yas deformation kev ua tau zoo thiab tej yam txhua yam muaj zog thaum siv. Cov khoom siv raw khoom siv rau kev tsim lub kaum sab xis steel yog tsawg carbon square steel billet, thiab cov tiav lub kaum sab xis yog xa mus rau hauv lub kub dov, normalized lossis kub dov.
