ASTM G105 Wear Test

EPI Materials Testing group does custom wear testing and three standardized wear tests for their clients, ASTM G65, G105, and B611. The mass of the test specimens are recorded before and after each test. The mass loss is then converted to volume loss due to the range of densities in materials.

The G105 test is an ASTM 'Standard Test Method for Conducting Wet Sand/Rubber Wheel Abrasion Tests'. Figure one shows you what the test setup is like. The test runs with a 7" steel wheel with a layer of rubber at 50-shore hardness to start with. After the initial test, the test runs again three more times on the same wear scar with a 50-shore hardness wheel, a 60-shore hardness wheel, and a 70-shore hardness wheel, in that order. This test is usually run on Carbide overlays with high hardness values or coating layers made of very hard metals such as titanium. A typical wear scar is shown below (Figure 2).

(Figure 1 from ASTM G105 Spec)

Fig. 2 - Typical Wear Scar

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