peb cov khoom
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Cov khoom siv hluav taws xob ntawm Q355NH steel phaj: tensile zog Ntau dua lossis sib npaug rau 490-630MPa, yield zog Ntau dua lossis sib npaug rau 355MPa, elongation Tsawg dua lossis sib npaug rau 26.
Q355NH weathering steel (atmospheric corrosion resistant steel): ntxiv tooj liab, phosphorus, chromium, npib tsib xee thiab lwm yam khoom los txhim kho atmospheric corrosion kuj ntawm hlau. Weathering steel yog muab faib ua cov huab cua huab cua thiab welded structural weathering steel.Q355NH steel phaj yog cov tsis tshua muaj alloy series, nrog xeb kuj, yog li ntawd cov khoom ntawm corrosion kuj thiab lub neej extension, thinning thiab txo kev noj, zog-txuag zog txuag thiab yog li ntawd.
