Q355Nej weathering steel yog tsim ntawm cov txheej txheem thoob qab los ntawm kev hnyav: 0.12, tooj: 0.2, tooj liab: 0.2, cov seem yog hlau thiab trace impurities.
Los ntawm aloyoying tooj liab, manganese, silicon thiab txhuas hauv cov ntsiab lus ntawm cov khoom siv tsis zoo thiab yooj yim dua cov khoom siv tsis zoo yuav tsum tau hloov cov txheej txheem kev hloov ntawm Q235 steel.
Txais tos kom yuav Q355Nej ya dav hlau los ntawm peb lub tuam txhab. Peb tuaj yeem muab cov huab cua Q3555555555555555553nd cov cua nrog muag-tom qab thiab tus nqi qis. Yog tias koj muaj kev xav tau ntawm Q355Nhu huab cua hlau, thov hu rau peb dawb do.
