api 5ct油井管化学成分要求
组别 |
钢级 |
类型 |
碳 |
锰 |
钼 |
铬 |
镍 max |
铜 max |
磷 max |
硫 max |
硅 max |
||||
min |
max |
min |
max |
min |
max |
min |
max |
||||||||
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
1 |
h40 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.030 |
0.030 |
- |
j55 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.030 |
0.030 |
- |
|
k55 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.030 |
0.030 |
- |
|
n80 |
1 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.030 |
0.030 |
- |
|
n80 |
q |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.030 |
0.030 |
- |
|
2 |
m65 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
0.030 |
0.030 |
- |
l80 |
1 |
- |
0.43a |
- |
1.90 |
- |
- |
- |
- |
0.25 |
0.35 |
0.030 |
0.030 |
0.45 |
|
l80 |
9cr |
- |
0.15 |
0.30 |
0.60 |
0.90 |
1.10 |
8.00 |
10.0 |
0.50 |
0.25 |
0.020 |
0.010 |
1.00 |
|
l80 |
13cr |
0.15 |
0.22 |
0.25 |
1.00 |
- |
- |
12.0 |
14.0 |
0.50 |
0.25 |
0.020 |
0.010 |
1.00 |
|
c90 |
1 |
- |
0.35 |