Mechanical Properties of welded steel pipes type 213 Gr T5 used in heat exchangers

Abstract

This work is concerned to the welding process for joining pipes made from alloy steel which is widely used in heat exchangers structures. The chemical composition analysis of this steel type close to 213 Gr T5 according to ASTM standard. This work show that this metal has a good weldability and high level of weld metal integrity.

Weld filler type ER 502 of 2.4 mm diameter is used in this welding method to join sections of pipes by using Tungsten Inert Gas welding (TIG) process. This investigation is covered the approving of weld integrity assessments and mechanical prosperities by doing a number of tests for weld joint, for example, tensile testing, bending, hardness, x-ray and Liquid penetrant tests). Eventually it was confirmed that, the weld metal has a reasonable joint mechanical property and no series weld defects.