q235d钢板的化学成分有哪些？

q235d钢板

q235d钢板是性质为碳素结构钢的材料。

化学成分:

Q235分A、B、C、D四级(GB700-88)

Q23含C0.14~0.22% Mn0.30~0.65Si≤0.30S≤0.050P≤0.045

Q235B级含C0.12~0.20% Mn0.30~0.670Si≤0.30S≤0.045P≤0.045

Q235C级含C≤0.18% Mn0.35~0.80Si≤0.30S≤0.040P≤0.040

Q235D级含C≤0.17% Mn0.35~0.80Si≤0.35S≤0.040P≤0.035