Standards | Seamless | Welded | |
---|---|---|---|
1 | ASTM | B 161 / 163 | B 725 / 730 |
2 | ASME | SB 161 / 163 | SB 725 / 730 |
NB Sizes | Sch 5 | Sch 10 | Sch 40 | Sch 80 | Sch 160 |
---|---|---|---|---|---|
1/8" | ✓ | ✓ | ✓ | ✓ | |
1/4" | ✓ | ✓ | ✓ | ✓ | |
3/8" | ✓ | ✓ | ✓ | ✓ | |
1/2" | ✓ | ✓ | ✓ | ✓ | ✓ |
3/4" | ✓ | ✓ | ✓ | ✓ | ✓ |
1" | ✓ | ✓ | ✓ | ✓ | ✓ |
1 1/4" | ✓ | ✓ | ✓ | ✓ | ✓ |
1 1/2" | ✓ | ✓ | ✓ | ✓ | ✓ |
25 mm | ✓ | ✓ | ✓ | ✓ | ✓ |
2" | ✓ | ✓ | ✓ | ✓ | ✓ |
2 1/2" | ✓ | ✓ | ✓ | ✓ | ✓ |
3" | ✓ | ✓ | ✓ | ✓ | ✓ |
4" | ✓ | ✓ | ✓ | ✓ | ✓ |
5" | ✓ | ✓ | ✓ | ✓ | |
6" | ✓ | ✓ | ✓ | ✓ |