The mechanical properties of dissimilar weld joints between SAF 2205 and AISI 316L were investigated. Welding was accomplished by different types of welding wires: AWS ER 347, AWS ER 316L and AWS ER 309L. Microhardness and tensile tests were accomplished to evaluate hardness of the weld metal toward both sides of the base metals and to determine the strength of the weld joints. The weld metals of all samples exhibited higher hardness values than AISI 316L and lower values than SAF 2205 base metal. Welding wire 309L exhibited higher mechanical properties, while welding wire 347 showed weak mechanical properties. According to results, welding wire 309L was suitable for welding duplex stainless steel to austenitic stainless steel by gas tungsten arc welding process.
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