钢号 |
化学成分,% |
||||||||||
C |
Si |
Mn |
Mo |
Cr |
V |
Nb |
P |
S |
Ni |
Cu |
|
≤ |
|||||||||||
20 |
0.17~ 0.23 |
0.17~ 0.37 |
0.60~ 1.00 |
-- |
≤0.25 |
-- |
-- |
0.030 |
0.020 |
0.25 |
0.25 |
35 |
0.32~ 0.38 |
0.17~ 0.37 |
0.50~ 0.80 |
-- |
≤0.25 |
-- |
-- |
0.030 |
0.020 |
0.25 |
0.25 |
16 Mn |
0.13~ 0.19 |
0.20~ 0.60 |
1.20~ 1.60 |
-- |
≤ 0.30 |
-- |
-- |
0.030 |
0.020 |
0.30 |
0.25 |
20 Mn Mo |
0.17~ 0.23 |
0.17~ 0.37 |
1.10~ 1.40 |
0.20~ 0.35 |
≤ 0.30 |
-- |
-- |
0.025 |
0.015 |
0.30 |
0.25 |
20 Mn Mo Nb |
0.17~ 0.23 |
0.17~ 0.37 |
1.30~ 1.60 |
0.45~ 0.65 |
≤ 0.30 |
-- |
0.025~ 0.050 |
0.025 |
0.015 |
0.30 |
0.25 |
15 Cr Mo |
0.12~ 0.18 |
0.10~ 0.60 |
0.30~ 0.80 |
0.45~ 0.65 |
0.80~ 1.25 |
-- |
-- |
0.030 |
0.020 |
0.30 |
0.25 |
35 Cr Mo |
0.32~ 0.38 |
0.17~ 0.37 |
0.40~ 0.70 |
0.15~ 0.25 |
0.80~ 1.10 |
-- |
-- |
0.030 |
0.020 |
0.30 |
0.25 |
12 Cr 1Mo V |
0.09~ 0.15 |
0.17~ 0.37 |
0.40~ 0.70 |
0.25~ 0.35 |
0.90~ 1.20 |
0.15~ 0.30 |
-- |
0.030 |
0.020 |
0.30 |
0.25 |
14 Cr 1Mo |
0.11~ 0.17 |
0.50~ 0.80 |
0.30~ 0.80 |
0.45~ 0.65 |
1.15~ 1.50 |
-- |
-- |
0.025 |
0.015 |
0.30 |
0.25 |
12 Cr 2Mo 1 |
≤0.15 |
≤0.50 |
0.30~ 0.60 |
0.90~ 1.10 |
2.00~ 2.50 |
-- |
-- |
0.025 |
0.015 |
0.30 |
0.25 |
1 Cr 5Mo |
≤0.15 |
≤0.50 |
≤0.60 |
0.45~ 0.65 |
4.00~ 6.00 |
-- |
-- |
0.030 |
0.020 |
0.50 |
0.25 |
注:对真空碳脱氧钢,允许Si含量小于或等于0.12%。 |
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