20號(hào)方矩管化學(xué)成分
化學(xué)成份 標(biāo)準(zhǔn) 牌號(hào) C Si Mn P、S Cu Ni Mo Cr GB/T8162 10 0.07~0.14 0.17~0.37 0.35~0.65 ≤0.035 ≤0.25 ≤0.25 / ≤0.15 20 0.17~0.24 0.17~0.37 0.35~0.65 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 35 0.32~0.40 0.17~0.37 0.50~0.80 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 45 0.42~0.50 0.17~0.37 0.50~0.80 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 16Mn 0.12~0.20 0.20~0.55 1.20~1.60 ≤0.035 ≤0.25 ≤0.25 / ≤0.25 12CrMo 0.08~0.15 0.17~0.37 0.40~0.70 ≤0.035 ≤0.25 ≤0.30 0.40~0.55 0.40~0.70 15CrMo 0.12~0.18 0.17~0.37 0.40~0.70 ≤0.035 ≤0.25 ≤0.30 0.40~0.55 0.80~1.10 12Cr1MoV 0.08~0.15 0.17~0.37 0.40~0.70 ≤0.035 ≤0.25 ≤0.30 0.25~0.35 0.90~1.20
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