a350gr的精选

a350gr是低温碳钢材料它的化学成份:C≤0.30Si≤0.60Mn≤1.00P≤0.040S≤0.045杂质元素Cr≤0.5Mo≤0.20V≤0.03Ni≤0.50Cu≤0.30杂质总量≤1%。注：C每降低0.01%，Mn可升高0.04%，但Mn最高不能高于1.28%。力学性能：Rm450-620M...