Cov kev ua haujlwm zoo li cas yog Q235C thiab Q235D steel phaj haum rau?
A: Q235C yog haum rau nruab nrab mus rau qhov kub thiab txias ua hauj lwm nyob ib ncig ntawm 0 degree, xws li sab nraum zoov steel qauv nyob rau hauv sab qaum teb cheeb tsam; Q235D yog qhov tsim nyog rau kev ua haujlwm kub tsawg **-20℃**, xws li cov khoom siv sab nraum zoov hauv Northeast thiab Northwest Tuam Tshoj, cov thawv kub kub, thiab cov khoom siv txias txias.
Q235 steel daim hlau puas tuaj yeem siv rau hauv kev tsim cov hlab ntsha siab?
A: Tsis yog, lub zog thiab toughness ntawm Q235 tsis ua raws li cov qauv rau lub siab lub nkoj steel. Cov hlab ntsha siab yuav tsum tau siv cov hlau tshwj xeeb xws li Q345R thiab 20R.
Q235 steel daim hlau puas tuaj yeem siv rau hauv nkoj tsim khoom?
A: Q235B / D tuaj yeem siv rau cov qauv kev pabcuam hauv hiav txwv dav dav (xws li kev txhawb nqa sab hauv thiab hauv paus), tab sis cov phiaj xwm tshwj xeeb (xws li AH32 thiab DH32) yuav tsum tau siv rau cov qauv marine tseem ceeb kom ua tau raws li cov ntaub ntawv pov thawj ntawm kev faib cov koom haum.
Dab tsi yog qhov zoo ntawm Q235 steel phaj hauv steel qauv engineering?
A: Tus nqi siab -kev ua tau zoo, zoo weldability, thiab kev ua haujlwm yooj yim; nws lub zog tawm los ua tau raws li qhov yuav tsum tau ua ntawm cov qauv hlau zoo tib yam, thiab nws cov nqi yuav khoom yog qis dua li ntawm qis - alloy steel daim hlau, ua rau nws nyiam dav dav - lub hom phiaj steel rau lub tsev steel qauv.
Dab tsi yog lub Hoobkas tshuaj xyuas cov khoom rau Q235 steel daim hlau?
A: Yuav tsum tau soj ntsuam cov khoom: tshuaj muaj pes tsawg leeg (spectral / tshuaj tsom xam), txhua yam khoom (yield zog, tensile zog, elongation), txias dabtsi yog khoov kuaj; Q235B / C / D xav tau kev kuaj xyuas ntxiv; qhov zoo ntawm qhov chaw thiab qhov sib txawv ntawm qhov sib txawv yog kuaj raws li xav tau.