In addition the effect of sulphur on GTA weld penetration was quantitatively evaluated by considering two heat of 304 stainless steel containing 90 and 240 ppm sulphur. Sulphur, as expected increased depth with ratio by altering the surface tension gradient driven flow in the weld pool. In the study of the influence of welding on the stress corrosion resistance of AISI 304 steel ,Barbosa,and others (1997) also specified that Austenitic stainless steel to code pressure vessels in the petrochemical plants.The materials is highly susceptible to stress corrosion in chloride environment,which can endanger the weld and lead to rupture of the component.In this work the calculation of the influence of welding parameters on the stress corrosion resistance of AISI 304 Steel exposed to a magnesium chloride solution. AISI 304 steel were manually welded using three different coated electrodes (AWS E 304-16, E308L-16, 316L-16) and two heat inputs (5.0 and 9.0kj/cm).
The welded sample were analysed by tensile strength test optimal microscopy and corrosion test carried out according to ASTM G36-73 guidelines. The result show s that AWS E309-16 electrodes produced the best results due to the microstructure of the resulting weld metal.
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