IJSRP, Volume 5, Issue 3, March 2015 Edition [ISSN 2250-3153]
Vinoth.V, Madhavan.R., Tharanitharan.G.
In the present work an investigation was made on property relationship of SS 304L austenitic stainless steel welds. Shielded metal arc welding (SMAW), gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW) methods were used to make welds. Tensile test was used to measure the yield strength and ultimate tensile strength of the welds. Impact test was used to measure the toughness of the welds. Experimental results clearly revealed that these properties of GTAW was superior compared to the other two welds. This was due to more weld penetration at lower heat input into the base metal. The disadvantage of SMAW and GMAW is that the slag must be chipped off of the weld after it cools and can sometimes infiltrate the weld causing weakness.