Q490R yog cov cuab yeej siv siab nrog tempered high-strength steel phaj, es tsis txhob qib 07MnMoVR, steel qib los ntawm lub zog yield "yield" sawv cev ntawm thawj tsab ntawv ntawm hanyu pinyin "Q", qhov tsawg kawg nkaus yield zog tus nqi ntawm cov kev cai ntawm 490, lub siab lub nkoj "Yung" cim ntawm thawj tsab ntawv ntawm hanyu pinyin "R" muaj pes tsawg leeg.
Q490R steel phaj siv tus qauv: GB / T713.6-2023, tsis yog tus qauv qub GB/T19189-2011, tus qauv no qhia cov khoom siv siab nrog tempered high-strength steel phaj qib sawv cev, cov ntsiab lus, qhov loj , cov duab, qhov hnyav, kev xav tau, kev sim, kev soj ntsuam xyuas, ntim, cim thiab daim ntawv pov thawj zoo; Cov txheej txheem no siv rau cov tuab ntawm 10 ~ 80mm Cov qauv no siv rau lub thickness ntawm 10 ~ 80mm siab cov cuab yeej nrog tempered high-strength steel phaj.
Q490R yog lub zog siab steel phaj rau cov hlab ntsha siab, feem ntau yog siv rau hauv kev tsim cov roj av, tshuaj, chaw nres tsheb fais fab, boiler thiab lwm yam lag luam. thiab siv. Hauv kev lag luam, Q490R steel phaj yog dav siv.
