GB6479鋼管的化學成分有什么?
標準 |
牌號 |
化學成分(%) | |||||||
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni | ||
GB6479 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
≤0.030 |
≤0.030 |
/ |
/ |
/ |
20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
≤0.030 |
≤0.030 |
/ |
/ |
/ | |
16Mn |
0.12-0.20 |
0.20-0.60 |
1.20-1.60 |
≤0.030 |
≤0.030 |
|
|
| |
10MoWVNb |
0.07-0.13 |
0.50-0.80 |
0.50-0.80 |
≤0.030 |
≤0.030 |
/ |
0.60-0.90 |
/ | |
15CrMo |
0.12-0.18 |
0.17-0.37 |
0.40-0.70 |
≤0.030 |
≤0.030 |
0.80-1.10 |
0.40-0.55 |
/ | |
1Cr5Mo |
≤0.15 |
≤0.50 |
≤0.60 |
≤0.030 |
≤0.030 |
4.00-6.00 |
0.45-0.60 |
≤0.60 | |
12Cr2Mo |
0.80-0.15 |
≤0.50 |
0.40-0.70 |
≤0.030 |
≤0.030 |
2.0-2.50 |
0.90-1.20 |
|
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