| Nominal Tubo Tamaño(NPS) | 180 deg RET | URNS | De espaldas a la cara K(INCH) |
| Diámetro exterior en bisel D(INCH) | A(INCH) | ||
| 1 | 1.32 | 2.00 | 1.62 |
| 1 1/4 | 1.66 | 2.50 | 2.06 |
| 1 1/2 | 1.90 | 3.00 | 2.44 |
| 2 | 2.38 | 4.00 | 3.19 |
| 2 1/2 | 2.88 | 5.00 | 3.94 |
| 3 | 3.50 | 6.00 | 4.75 |
| 3 1/4 | 4.00 | 7.00 | 5.50 |
| 4 | 4.50 | 8.00 | 6.25 |
| 5 | 5.56 | 10.00 | 7.75 |
| 6 | 6.62 | 12.00 | 9.31 |
| 8 | 8.62 | 16.00 | 12.31 |
| 10 | 10.75 | 20.00 | 15.38 |
| 12 | 12.75 | 24.00 | 18.38 |
| 14 | 14.00 | 28.00 | 21.00 |
| 16 | 16.00 | 32.00 | 24.00 |
| 18 | 18.00 | 36.00 | 27.00 |
| 20 | 20.00 | 40.00 | 30.00 |
| 22 | 22.00 | 44.00 | 33.00 |
| 24 | 24.00 | 48.00 | 36.00 |
