NB = rozmerova trieda trubky - vid tabulka nizsie
| NB | A INCHES | A MM | B INCHES | B MM | Kg/M |
| 1/8 | 0.405 | 10.29 | 0.068 | 1.73 | 0.37 |
| 1/4 | 0.540 | 13.72 | 0.088 | 2.24 | 0.64 |
| 3/8 | 0.675 | 17.15 | 0.091 | 2.31 | 0.87 |
| 1/2 | 0.840 | 21.34 | 0.109 | 2.77 | 1.29 |
| 3/4 | 1.050 | 26.67 | 0.113 | 2.87 | 1.71 |
| 1 | 1.315 | 33.40 | 0.133 | 3.38 | 2.54 |
| 1-1/4 | 1.660 | 42.16 | 0.140 | 3.56 | 3.44 |
| 1-1/2 | 1.900 | 48.26 | 0.145 | 3.68 | 4.11 |
| 2 | 2.375 | 60.33 | 0.154 | 3.91 | 5.52 |
| 2-1/2 | 2.875 | 73.03 | 0.203 | 5.16 | 8.77 |
| 3 | 3.500 | 88.90 | 0.216 | 5.49 | 11.47 |
| 4 | 4.500 | 114.30 | 0.237 | 6.02 | 16.32 |
| 5 | 5.563 | 141.30 | 0.258 | 6.55 | 22.10 |
| 6 | 6.625 | 168.28 | 0.280 | 7.11 | 28.69 |
