มอก. 2172 เล่ม 1-2565

Scope (English)

This standard specify the method of tensile testing of metallic materials. and determine the mechanical properties which are determined at room temperature. Specifying the introduction, scope, reference document, definitions, symbols, principles, test pieces, determination of the original cross-sectional area, original gauge length and extensometer gauge length, the accuracy of the testing machine, test conditions, determination of upper yield stress, determination of lower yield stress, determination of proof stress for plastic span extension, determination of proof stress for total extension, method of verifying permanent deformation stress, determination of percentage elongation at yield point, determination of percentage elongation of plastic at maximum force, determination of total elongation at maximum force in percent, determination of total elongation at break in hundred each, determination of elongation after fracture as a percentage, determination of percentage area attenuation, test report, and measurement uncertainty.