API 5L Grade B seamless steel pipes are primarily available in sizes ranging from 1/8" to 48" (DN6 to DN1200). The wall thickness of these pipes must comply with ASME B36.10 standards and are available in the following thickness grades: SCH 10, SCH 20, SCH 40, STD, XS, SCH 100, SCH 120, SCH 160, and XXS.
|
DN |
NPS |
OD |
SCH20 |
SCH30 |
STD |
SCH40 |
SCH60 |
XS |
80 |
|
6 |
1/8 |
10.3 |
- |
1.45 |
1.73 |
1.73 |
- |
2.41 |
2.41 |
|
8 |
1/4 |
13.7 |
- |
1.85 |
2.24 |
2.24 |
- |
3.02 |
3.02 |
|
10 |
3/8 |
17.1 |
- |
1.85 |
2.31 |
2.31 |
- |
3.20 |
3.20 |
|
15 |
1/2 |
21.3 |
- |
2.41 |
2.77 |
2.77 |
- |
3.73 |
3.73 |
|
20 |
3/4 |
26.7 |
- |
2.41 |
2.87 |
2.87 |
- |
3.91 |
3.91 |
|
25 |
1 |
33.4 |
- |
2.90 |
3.38 |
3.38 |
- |
4.55 |
4.55 |
|
32 |
11/4 |
42.2 |
- |
2.97 |
3.56 |
3.56 |
- |
4.85 |
4.85 |
|
40 |
11/2 |
48.3 |
- |
3.18 |
3.68 |
3.68 |
- |
5.08 |
5.08 |
|
50 |
2 |
60.3 |
- |
3.18 |
3.91 |
3.91 |
- |
5.54 |
5.54 |
|
65 |
21/2 |
73.0 |
- |
4.78 |
5.16 |
5.16 |
- |
7.01 |
7.01 |
|
80 |
3 |
88.9 |
- |
4.78 |
5.49 |
5.49 |
- |
7.62 |
7.62 |
|
90 |
31/2 |
101.6 |
- |
4.78 |
5.74 |
5.74 |
- |
8.08 |
8.08 |
|
100 |
4 |
114.3 |
- |
4.78 |
6.02 |
6.02 |
- |
8.56 |
8.56 |
