ASTM E238 covers the standard test method for pin-type bearing test of metallic materials. The ultimate strength and yield strength of a bearing material are determined from the data obtained in this test. The bearing material used in this test is a flat piece with a centered hole and near the edge. The pin used should fit snug in the hole. ASTM E238 specifies the hole diameter and distance from the edge of the bearing material. The test machine will grip one end of the plate test specimen, and the other end will grip the pin. Tension test machines equipped with proper gripping solutions work well with this test. See ASTM E4 for more information on tensile test machines.

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