16mn无缝钢管化学成分
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