NON-DESTRUCTIVE METHOD FOR DETERMINING THE MECHANICAL CHARACTERISTICS OF METAL OF MAIN PIPELINES

Abstract

The paper presents a method of non-destructive testing of main pipelines, based on the possibility of indirectly determining the basic mechanical properties of metal using a non-destructive method. Correlation equations were obtained for the relationship between Vickers hardness values and the measured dimensions of the pyramidal indent obtained during hardness testing with the mechanical properties of the metal of main pipeline pipes. The results of statistical processing of experimental data of the studied relationships for main pipeline pipes made of steel 20 and steel 09G2S are presented.