1. Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ntawm q355 yog raws li nram no:
Cov pa roj carbon (C): Tsawg dua lossis sib npaug rau 0.20%
Silicon (Si): Tsawg dua lossis sib npaug rau 0.50%
Manganese (Mn): 1.00%-1.60%
Phosphorus (P): Tsawg dua lossis sib npaug rau 0.04%
Sulfur (S): Tsawg dua lossis sib npaug rau 0.04%
Nitrogen (N): Tsawg dua lossis sib npaug rau 0.01%
Chromium (Cr): Tsawg dua lossis sib npaug rau 0.30%
Nickel (Ni): Tsawg dua lossis sib npaug rau 0.30%
Copper (Cu): Tsawg dua lossis sib npaug rau 0.30%
Titanium (Ti): Tsawg dua lossis sib npaug rau 0.20%
Molybdenum (Mo): Tsawg dua lossis sib npaug rau 0.20%
2. Mechanical zog
Lub zog tawm los thiab lub zog tensile ntawm q355 tsis tsawg dua 355MPa thiab 490MPa feem. Tsis tas li ntawd, cov khoom siv kuj muaj qhov kub thiab txias toughness, vuam kev ua tau zoo thiab kev ua haujlwm. Nyob rau hauv ib puag ncig uas tsis muaj qhov kub thiab txias ntawm rho tawm 40 degree, q355 tseem tuaj yeem tuav lub siab tawv thiab tsis ua rau brittleness. Nyob rau tib lub sijhawm, cov khoom siv kuj muaj qhov zoo weldability thiab processability, thiab yog haum rau ntau yam kev ua, xws li txiav, dabtsi yog khoov, stamping, thiab lwm yam.
3. Kev siv teb
Vim tias q355 muaj lub zog siab thiab qhov kub tsis tshua muaj zog, nws yog dav siv hauv kev tsim kho, txuas hniav, nkoj, tsheb, nkoj siab thiab lwm yam haujlwm. Piv txwv li, hauv kev tsim kho, q355 tuaj yeem siv los ua cov khoom siv xws li kab teeb, kab thiab ru tsev ntawm cov tsev siab siab; nyob rau hauv qhov chaw ntawm cov choj, q355 tuaj yeem siv los ua cov kab teeb ci tseem ceeb thiab kev txhawb nqa ntawm cov choj; nyob rau hauv lub tshav pob ntawm cov nkoj, q355 tuaj yeem siv los ua cov nkoj thiab cov nkoj. lwm .; nyob rau hauv lub tshav pob ntawm lub tsheb, q355 yuav siv tau los ua lub tsheb thav duab thiab compartments; nyob rau hauv lub tshav pob ntawm cov hlab ntsha siab, q355 tuaj yeem siv los ua ntau yam ntawm cov hlab ntsha thiab cov kav dej.
Nyob rau hauv luv luv, q355, raws li ib tug tsawg-alloy high-lub zog steel qauv, muaj zoo tshuaj muaj pes tsawg leeg, mechanical zog thiab daim ntawv thov teb. Hauv kev siv tiag tiag, cov kev qhia tshwj xeeb tsim nyog thiab siv tau tuaj yeem xaiv raws li kev siv sib txawv.
