Abrasion resistance of different materials.

It is difficult to compare the abrasion resistance of different materials. The choice of material is best resolved through practical tests or previous experience. Laboratory tests should be used with great discretion.
The values in the table should be used only as a rough guide.
Relative abrasion resistance
Styrene plastic approx. 30
Polyamide 66 approx. 6
HDPE approx. 19
PTFE approx. 5
Epoxy plastic approx. 16
Polyurethane approx. 0.5-0.8
Rubber approx. 0.6-1.9
Aluminum approx. 5
Steel (high-strength) approx. 0.5-0.7
Wrought iron approx. 1
The lower the number, the better the abrasion resistance.
Test conditions: abrasive particles approx. 1.1 mm, speed 3.55 m/s.