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

Abstract

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.

Keywords::

• construction materials
• weldability
• gas–oil–chemical equipment