These balls are made of ultra-high molecular mass polyethylene, offering exceptional properties such as remarkable lightness and increased wear resistance. They are ideal for applications requiring durability against abrasions and shocks. With over 40 years of expertise, Marteau-Lemarie guarantees a fast supply from our stock in France.
Physical characteristics of very high molecular mass polyethylene ball (uhmwpe)
| Ownership | Value | Unit |
|---|---|---|
| Density | 0.94 | g/cm3 |
| Young Module | 749 | MPa |
| Thermal expansion coefficient | 183 (T=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 0.41 | W/m·K |
| Volume resistivity | >10^13 | D·m |
| Relative magnetic permeability | <~1 | — |
| Magnetic behaviour | Diamagnetic | — |
| Friction coefficient | 0.16 | — |
| Absorption of moisture (24 h) | 0.01 | % |
Hardness and mechanical resistance of very high molecular mass polyethylene ball (uhmwpe)
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 60-68 | Shore D |
| Exercise temperatures | -100/80 | ° C |
| Exercise temperatures | -148/176 | °F |
Available diameters and grades for very high molecular mass polyethylene ball (uhmwpe)
| Parameter | Value |
|---|---|
| Minimum diameter | 6.35 mm — 1/4′′ |
| Maximum diameter | 100 mm — 4′′ |
| Grades available | 0-I-II-III-IV-V |
| Precision standards | ISO 3290 |
Corrosion resistance of very high molecular mass polyethylene ball (uhmwpe)
Excellent resistance to acids, alcohols, bases, esters, gasoline, fats and oils. Moderate resistance to aliphatic and aromatic hydrocarbons, mineral oils, oxidizing agents. Do not resist halogenated hydrocarbons.
Applications of very high molecular mass polyethylene ball (uhmwpe)
Anti-evaporation, anti-odor devices. Adapted to floating applications. Used in valves in the electronic, pharmaceutical and medical industries.
