Item | Test method | Unit | UHMWPE | HDPE | Steel |
Density | ISO1183 | g/cm3 | 0.94 | 0.945 | 7.8 |
Melting temperature | ISO11357 | °C | 136 | 129 | 1410 |
Water absorption | ISO11359 | % | <0.01 | <0.01 | - |
Coefficient of linear thermal expansion | ISO11359 | 10-4/°C | 1.5 | 1.2 | 0.17 |
Heat deformation temperature | ISO75 | °C | 85 | 71 | 1230 |
Yield strength | ISO527 | Mpa | ≥22 | 20 | ≥245 |
Tensile elongation | ISO527 | % | ≥250 | ≥350 | 20 |
Gap beam impact strength | ISO179 | KJ/m2 | No break | <27 | No break |
Rockwell hardness | ISO2039 | R | 40 | 33 | 45 |
Friction coefficient | ISO8295 | - | 0.05 | 0.28 | 0.58 |
Corrosion resistance | - | - | Excellent | Good | Bad |