2220 McKinley Avenue
National City CA 91950
800/925-4855 619/477-4855 FAX 619/477-4874
UHMW POLYETHYLENE
PHYSICAL PROPERTIES
| Physical Properties | Polystone® M (UHMW-PE) | |||||
| Property | Units |
ASTM Test |
Natural |
XL Cross linked |
MPG Glass filled |
Reprocessed |
| Density | gm/cm³ | D792 | .930 | .932 | .96 | .935 |
| Tensile strength at yield 73°F | psi | D638 | 3100 | 2900 | 2700 | 3000 |
| Elongation 73°F | % | D638 | 350 | 330 | 265 | 290 |
| * Relative volumetric abrasion loss |
* |
* |
100 | 85 | 75 | 90 |
|
Coefficient of friction 73°F on steel |
- |
- |
Static .15-.20 Dynamic .10-.20 |
.15-.20 .08-.18 |
.15-.20 .10-.20 |
.17-.20 .10-.20 |
| IZOD impact strength 73°F | KJ/m2 | D4020-96 | 125 | 120 | 110 | 96 |
| Hardness 73°F |
- |
D785 | Shore D 62-66 | D 62-66 | D 63-67 | D 63-69 |
| Melting point | °F | D789 | 275°-280° | 275°-280° | 275°-280° | 275°-280° |
| Coefficient of linear thermal expansion | 1/K | D696 | 2.0 x 10-4 | 1.0 x 10-4 | 1.0 x 10-4 | 1.9 x 10-4 |
| Continuous service temperature in air (max) | °F |
- |
180 | 180 | 180 | 180 |
| Volume resistivity | Ohm/cm | D257 | >1015 | >1015 | >1015 | >1015 |
| Dielectric constant (10³ Hz) |
- |
D150 | 2.3 | 2.3 | 2.3 |
- |
| Dielectric strength | KV/mm | D149 | 900 | 900 | 900 | 900 |
* Industry standard testing method using slurry of 60% aluminum
oxide and 40% water at a rotation speed of 1750 rpm for 2 hours. Results
indicate the ability of each material, in relation to Natural(=100), to resist
abrasion under typical UHMW-PE applications. A lower number indicates better
abrasion resistance.
The information listed herein is stated to the best of our knowledge and is
intended to provide a general guideline for Polystone ® M and its
uses. The values given are based on laboratory testing backed with global
industry experience. All properties in this table have performed equal or better
in laboratory testing. However, the data should not be considered as guaranteed
specific properties. Suggested applications are provided for information only
and are not specific recommendations.
