K: Ki konpozisyon chimik tipik (wt%) bobin Q235?
A: C Mwens pase oswa egal a 0.22, Si Mwens pase oswa egal a 0.35, Mn Mwens pase oswa egal a 1.4, P Mwens pase oswa egal a 0.045, S Mwens pase oswa egal a 0.045; Klas D gen menm pi ba P/S (mwens pase oswa egal a 0.035), ki bezwen konfime dapre sètifika kalite pakèt la.
K: Ki jan fòs sede a nan bobin Q235 chanje ak epesè?
A: Pi gran pase oswa egal a 235MPa pou t mwens pase oswa egal a 16mm; Pi gran pase oswa egal a 225MPa pou 16＜t Mwens pase oswa egal a 40mm; Pi gran pase oswa egal a 215MPa pou 40＜t Mwens pase oswa egal a 60mm; Pi gran pase oswa egal a 205MPa pou 60＜t Mwens pase oswa egal a 100mm; Pi gran pase oswa egal a 195MPa pou 100＜t Mwens pase oswa egal a 150mm.
K: Ki sa ki fòs rupture ak endis elongasyon nan bobin Q235? A: Fòs rupture 370-500 MPa; elongasyon Pi gran pase oswa egal a 26% pou epesè Mwens pase oswa egal a 16mm, yon ti kras diminye ak ogmante epesè (egzanp, Pi gwo pase oswa egal a 22% pou 100<>
K: Ki egzijans rezistans enpak pou bobin Q235?
A: Klas B: Enèji enpak Pi gran pase oswa egal a 27J nan tanperati chanm (20 degre); Klas C: Pi gran pase oswa egal a 27J nan 0 degre; Klas D: Pi gran pase oswa egal a 27J nan -20 degre; Klas A: Pa gen okenn kondisyon enpak.
K: Ki sa ki soudabilite nan bobin Q235?
A: Good weldability, compatible with E43 series welding electrodes (e.g., E4303) and ER50-6 welding wire; thin materials generally do not require preheating, while for thick plates (>20mm) oswa ba -soude tanperati, prechofaj a 100-150 degre rekòmande.