q235d鋼板
Q235是碳素結(jié)構(gòu)鋼,根據(jù)國標(biāo)(GB/T規(guī)定,235為其屈服強(qiáng)度,即235MPa
化學(xué)成分:
Q235分A、B、C、D四級(GB
Q235***含C≤0.22 Mn≤1.40 Si≤0.35 S≤0.050 P≤0.045
Q235B級含C≤0.20 Mn≤1.40 Si≤0.35S≤0.045 P≤0.045
Q235C級含C≤0.17Mn≤1.40 Si≤0.35S≤0.040 P≤0.040
Q235D級含C≤0.17Mn≤1.40 Si≤0.35S≤0.035 P≤0.