| Standards | Designation | |
|---|---|---|
| 1 | ASTM | B 166 |
| 2 | ASME | SB 166 |
| Sizes | Availability | Sizes | Availability |
|---|---|---|---|
| 6mm | ✓ | 22mm | ✓ |
| 8mm | ✓ | 28mm | ✓ |
| 10mm | ✓ | 40mm | ✓ |
| 12mm | ✓ | 60mm | ✓ |
| 13mm | ✓ | 75mm | ✓ |
| 16mm | ✓ | 90mm | ✓ |
| 19mm | ✓ | 120mm | ✓ |
| 22mm | ✓ |