Cov haujlwm ntawm cov qauv steel feem ntau suav nrog cov hauv qab no:
Lub zog siab thiab lub teeb yuag: Cov hlau muaj lub zog siab, zoo plasticity thiab toughness, thiab tshwj xeeb tshaj yog haum rau cov khoom thiab cov qauv nrog cov spans loj lossis cov khoom loj. Txawm hais tias qhov ntom ntawm cov hlau yog ntau dua li cov khoom siv hauv tsev xws li pob zeb, cov qauv hlau yog sib zog dua li cov pob zeb ua kom muaj zog, uas ua rau cov qauv hlau sib zog thiab yooj yim rau kev thauj thiab teeb tsa thaum coj cov khoom qub.
Zoo plasticity thiab toughness: Hlau muaj peev xwm zoo yas deformation nyob rau hauv zoo li qub loads, tuaj yeem hloov mus rau dynamic loads, thiab muaj zoo heev seismic kuj. Lub ductility thiab lub zog nqus peev xwm ntawm steel ua rau nws ua tau zoo nyob rau hauv dynamic loads.
Yooj yim rau kev tsim khoom thiab lub sijhawm tsim luv: cov qauv steel yooj yim rau kev tsim khoom, tuaj yeem tsim tawm hauv thaj chaw, thiab ua kom luv luv lub sijhawm tsim kho. Siv cov khoom noj zoo nkauj thiab lub zog muaj zog tuaj yeem siv thaum sib dhos ua ke rau ntawm qhov chaw, thiab qee zaum lawv tuaj yeem sib sau ua ke rau hauv cov koog loj rau kev hoisting.
Kev tsis zoo corrosion tsis kam, yuav tsum muaj kev tsim nyog: Tus hlau yog nquag muaj xeb thiab cov kev sib tw siab, thiab cov neeg hla tebchaws tau muaj zog, cuam tshuam rau lub neej pabcuam. Yog li, cov qauv steel yuav tsum tau tu tas li, feem ntau yog xeb tshem tawm, galvanizing lossis txheej.
Cov cua kub zoo tab sis tsis zoo hluav taws kub: Hlau tsis hloov ntau ntawm chav tsev kub mus rau 150 degree, tab sis lub zog thiab plasticity yuav poob qis heev tom qab ntau tshaj 150 degree, thiab lub zog poob mus rau xoom ntawm 600 degree. Yog li ntawd, cov qauv hlau feem ntau yuav tsum tau siv cov kev tiv thaiv hluav taws, xws li qhwv nrog pob zeb lossis siv cov txheej txheem hluav taws kub.