The influence of the micro-alloying elements on physical and structural characteristics of the some steel destined for manufacturing the oil pipes

摘要

The present paper studies the influence of the microalloy on thecharacteristics of the some steel classes destined to manufacturing the oil pipes.Added to the realization of high report between the resistance characteristics andtenaciousness by using the fine granulation there can be obtained the rising of thecapacity to weld of the steel, by reducing the content in carbon in order to realize thesame level of resistance at breaking. Was used as a test for a hot torque reference steel(C-Mn) in the steel of investigation (C-Mn-V). We determined the characteristics ofdeformation and strain hardening coefficient for two strain rates at differenttemperatures torsion test.