Q235A/B/C/D/E圆钢
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Q235圆钢 执行标准GB/T700-2006 化学成分 Q235分A、B、C、D四级(GB/T 700-2006) Q235A级含 C ≤0.22% Mn 0.3%-0.65% Si ≤0.35% S ≤0.050 P ≤0.045 Q235B级含 C ≤0.20% Mn 0.3%-0.7% Si ≤0.35% S ≤0.045 P ≤0.045 Q235C级含 C ≤0.17% Mn 0.35%-0.8% Si ≤0.35% S ≤0.040 P ≤0.040 Q235D级含 C ≤0.17% Mn 0.35%-0.8% Si ≤0.35% S ≤0.035 P ≤0.035 力学性能 密度:7.85g/cm^3 弹性模量(E/Gpa):200~210 泊松比(ν):0.25~0.33 抗拉强度(σb/MPa):375-460
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