
| TYPE | |||
|---|---|---|---|
| Overlapped welded | B1(PEXAL-PEX) | B(PERT-AL-PERT) | C(PE-AL-PE) |
| Roughness(mm) | 0.0007 | 0.0007 | 0.0007 |
| Melting point (°C) | - | 127 | 127 |
| Density (g/cm3) | 0.926-0.959 | 0.926-0.940 | 0.941-0.959 |
| Modulus of elasticity(MPa) | 7200 | 7200 | 7200 |
| Thermal conductivity(w/mk) | 0.45 | 0.45 | 0.45 |
| Coefficient of thermal expansion (mm/mk) | 0.025 | 0.025 | 0.025 |