| Metric Size (mm) | Imperial Size (inch) | SAE Dash Size | I.D. Min (mm) | I.D. Max (mm) | W.D. Min (mm) | W.D. Max (mm) | O.D. 1ST Type (mm) | O.D. 1SN Type (mm) | W.P. (Mpa) | W.P. (Psi) | P.P. (Mpa) | P.P. (Psi) | B.P. (Mpa) | B.P. (Psi) | Min. Bend Radius (mm) | W.T. (kg/m) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 3/16 | -3 | 4.9 | 5.4 | 9.0 | 10.0 | 11.9 | 13.5 | 25 | 3625 | 50 | 7250 | 100 | 14500 | 90 | 0.20 |
| 6.3 | 1/4 | -4 | 6.4 | 7.0 | 10.6 | 11.7 | 15.1 | 16.7 | 22.5 | 3265 | 45 | 6525 | 90 | 13050 | 100 | 0.25 |
| 8 | 5/16 | -5 | 7.9 | 8.5 | 12.1 | 13.3 | 16.7 | 18.3 | 21.5 | 3120 | 43 | 6235 | 85 | 12325 | 115 | 0.31 |
| 10 | 3/8 | -6 | 9.5 | 10.1 | 14.5 | 15.7 | 19.0 | 20.6 | 18 | 2610 | 36 | 5220 | 72 | 10440 | 125 | 0.36 |
| 12.5 | 1/2 | -8 | 12.7 | 13.5 | 17.5 | 19.1 | 22.2 | 23.8 | 16 | 2320 | 32 | 4640 | 64 | 9280 | 180 | 0.45 |
| 16 | 5/8 | -10 | 15.8 | 16.7 | 20.6 | 22.2 | 25.4 | 27.0 | 13 | 1885 | 26 | 3770 | 52 | 7540 | 205 | 0.52 |
| 19 | 3/4 | -12 | 18.8 | 19.8 | 24.6 | 26.2 | 29.4 | 31.0 | 10.5 | 1520 | 21 | 3045 | 42 | 6090 | 240 | 0.65 |
| 25 | 1 | -16 | 25.4 | 26.4 | 32.5 | 34.1 | 37.1 | 39.1 | 8.8 | 1275 | 17.5 | 2540 | 35 | 5075 | 300 | 0.91 |
