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BP300
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    BP300

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化学成分

牌 号      C≤     Si≤    Mn≤     P≤     S≤    Alt≥    Cr≤    Ni≤    B≤    CEV典型值
BP300      0.22    0.5     2.0      0.020   0.015  0.015    0.5     0.5     0.005   0.60
BP370      0.32    0.5     1.5      0.020   0.015  0.015    1.0     0.5     0.005   0.52
BP440      0.35    1.0     1.85     0.020   0.015  0.015    1.0     0.5     0.005   0.55
BP500      0.50    0.5     1.70     0.020   0.015  0.015    1.2     0.8     0.005   0.62
BP600      0.50    1.0     1.85     0.020   0.015  0.015    1.2     0.8     0.005   0.67

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