Study the Mechanical Properties and Metallurgical of Structural Steel SS400 Weld Metal

Abstract

This research was made for the investigation of mechanical properties and metallurgical of structural steel SS400 weld metal by shielded metal arc welding process, mig/mag welding process and flux core arc welding process. Structural steel SS 400 was as work products prepared following standard of AWS D1.1/D1.1M:2006. The metallurgical structure was inspected, mechanical property. The results showed that welding weld metal from 3 processes gives the most value of tensile strength are different. The flux core arc welding process to tensile strength is 680.86. MPa and the maximum hardness equal 198.3 HV, the shielded metal arc welding processes to tensile strength is 565.02 MPa and the minimum hardness at 183.4 HV. The results process of welding by flux core arc welding processes the result of a suitable structural steel SS400 welding and the use in the selections of the welding process for the most usability efficiently.