Q: Dab tsi yog qhov yuav tsum tau elongation rau Q355A thiab Q355B?
A: Elongation (A) Ntau dua lossis sib npaug li 21%.
Q: Dab tsi yog qhov ntsuas qhov ntsuas kub thiab qhov cuam tshuam lub zog rau Q355C?
A: Kev ntsuas qhov ntsuas kub yog 0 degree, cuam tshuam lub zog (KV) Ntau dua lossis sib npaug rau 34J.
Q: Dab tsi yog qhov ntsuas kub rau Q355E? Dab tsi ib puag ncig yog nws haum rau?
A: Kev ntsuas qhov ntsuas kub yog **-40℃**, haum rau cov khoom siv hauv cheeb tsam txias heev.
Q: Puas yog lub zog ntawm Q355 steel phaj hloov nrog nce thickness?
A: Yes. The greater the thickness, the lower the yield strength requirement. For example, when the thickness is >16~40mm, the yield strength ≥ 345MPa; when the thickness is >40 ~ 63mm, Ntau dua lossis sib npaug rau 335MPa.
Q: Dab tsi yog qhov kev ntsuas txias dabtsi yog khoov rau Q355 steel phaj?
A: Txoj kab uas hla dabtsi yog khoov d=2a (a yog lub thickness ntawm cov hlau phaj), lub kaum sab xis yog 180 degree, thiab tsis muaj kab nrib pleb ntawm tus qauv tom qab khoov.