| Medium | ρ (kg/m3) | cL (m/s) | cT (m/s) | ZL (MRa) |
| AL | 2800 | 6380 | 3100 | 17.9 |
| PE | 940 | 2370 | 1200 | 2.23 |
| Teflon | 2200 | 1350 | - | 2.97 |
| Water | 1000 | 1480 | - | 1.48 |
| Grease | 920 | 1450 | - | 1.33 |