Methodological fundamentals of the evaluation of the weldability of structural materials using oil and gas pipes as an example

摘要

A method for evaluating weldability is proposed, and processes of welding petrochemical equipment with a wall thickness of 20-200 mm and pipelines produced from steels of almost all strength grades, starting with carbon and low-alloy steels, hot-rolled and normalized steels, steels strengthened by heat treatment and advanced low-carbon high-strength steels of the K65-K75 type, are outlined.