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