Dab tsi tshwm sim tsis haum rau Q235?
A: Heavy loads, high temperatures (>250 degree), muaj zog corrosion, ultra-siab zog, thiab tseem ceeb heev dynamic load-cov ntaub ntawv bearing.
Qhov txawv ntawm Q235 thiab HRB335/400 yog dab tsi?
A: Q235 yog carbon structural steel (section steel / phaj); HRB yog kub-rolled ribbed steel bar (rau pob zeb).
Qhov kev pab cuam lub neej ntawm Q235 yog dab tsi?
A: 30-50 xyoo nrog kev tiv thaiv ib puag ncig- kev saib xyuas corrosion; 10-20 xyoo nyob rau hauv corrosive ib puag ncig (yuav tsum tau txhim kho kev tiv thaiv corrosion).
Tus nqi zoo ntawm Q235 yog dab tsi?
A: 10-15% qis dua Q355, cov nqi ua haujlwm qis dua / vuam, thiab cov nqi qis dua.
Dab tsi yog qhov kev thov yav tom ntej rau Q235?
A: Tseem yog qhov tseem ceeb rau cov tsev dav dav; tseem ceeb/heavy-load/high- cov tsev nce siab yuav maj mam hloov mus rau Q355; qis-carbon thiab siab- kev txhim kho kev ua tau zoo yog xav tau.