ASTM A938 is a standard specification established by ASTM International, an organization that develops and publishes voluntary consensus standards for various industries. This particular standard specifies the test method for wire specimen torsion.

The ASTM A938 standard outlines the procedure for conducting torsion testing of metallic wire specimens to determine their mechanical properties, such as torsional strength and modulus of elasticity. The standard provides guidelines for sample preparation, testing equipment, testing procedures, and data analysis.

Torsion testing according to this standard involves subjecting a wire specimen to a twisting force until it fractures or reaches a specified deformation. The torque applied and the resulting twist angle is measured during the test. Using these measurements, it is possible to determine a material’s ability to withstand torsional loads and how it will behave when subjected to twisting forces.

By following the guidelines of ASTM A938, manufacturers, researchers, and quality control professionals can ensure consistent and reliable testing of wire specimens. The standard helps in comparing the torsional properties of different materials and determining their suitability for specific applications.

NextGen’s GenTor Horizontal Torsion Tester complies with ASTM A938 standard.

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