-20℃cuam tshuam rau lub zog xav tau?
Teb: Ntau dua los yog sib npaug rau 34J (KV2), Class D core indicator.
Cov pa roj carbon sib npaug (Ceq) yog dab tsi?
Teb: Tsawg dua lossis sib npaug li 0.45%, weldability zoo.
Q355D Chemical Composition (Siv txwv)?
Teb: C Tsawg dua lossis sib npaug rau 0.20%, Si Less dua lossis sib npaug rau 0.55%, Mn Tsawg dua lossis sib npaug li 1.60%
P Tsawg dua lossis sib npaug rau 0.025%, S Tsawg dua lossis sib npaug li 0.025%
Muaj Nb/V/Ti microalloying
Thickness Direction Properties (Z-kev taw qhia)?
Teb: tuaj yeem txhawb nqa nrog Z15 / Z25 / Z35. Rau cov phaj tuab Ntau dua los yog sib npaug rau 40mm, Q355DZ15 / Z25 feem ntau yog siv rau kev nkag mus rau tag nrho cov vuam los tiv thaiv lamellar tearing.
Thaum twg Q355D yuav tsum tau ua hauv kev tsim kho?
Teb: Ua haujlwm kub tsawg dua lossis sib npaug li -20℃(qhov chaw txias heev)
Tsawg kub + dynamic load + qaug zog Cheebtsam
Yam yuav tsum tau muaj: GB 50017-2017