S355JR yog ib qho tsis tshua muaj hlau alloy high-strength steel qauv ua raws li European tus qauv EN10025.S355JR yog ib qho tsis tshua muaj alloy high-strength structural steel nyob rau hauv Tuam Tshoj steel, nrog ib tug hardness ntawm 70-80B thiab ib tug yield zog ntawm {{6} }MPa.
S355JR yog categorized li tsawg alloy siab zog steel phaj, yog cov European txheem steel phaj, S355JR steel phaj kev ua tau zoo yam ntxwv, dua li cov pa roj carbon zoo tib yam steel muaj siab yield zog thiab yield zog piv, zoo dua kub thiab txias machining thiab sib sau, zoo weldability, qis dua. nyiam txias embrittlement, notch thiab aging rhiab heev, raws li zoo raws li zoo tiv thaiv corrosion ntawm huab cua, seawater thiab lwm yam corrosive muaj peev xwm.
S355J2 steel phaj tus me nyuam raws li txoj cai: S355JR xa kub dov, tswj dov, normalized thiab hais txog.
S355J2 steel phaj feem ntau yog siv rau hauv nkoj, boilers, siab hlab ntsha, roj av cia tso tsheb hlau luam, txuas hniav, fais fab chaw nres tsheb, nqa thiab tsheb thauj mus los machinery thiab lwm yam ntau dua loads ntawm welded structural Cheebtsam, loj ships, txuas hniav thiab sorghums, fais fab chaw nres tsheb khoom, nruab nrab- thiab high-pressure boilers, high-pressure ntim, dov Tshuag, lifting machinery, mining machinery thiab lwm yam loj-scale welded structural Cheebtsam, rau ib tug ntau yam ntawm loj-scale engineering lug thiab cov kev cai ntawm high-strength, high load lightweight structures.
