Abstract
The weldability of ultra high strength Dual Phase Steel (DPS) was investigated. DPS was developed by adoption of intercritical treatment technique and then welded using a Submerged Arc Welding (SAW) technique, following a conventional standard of pre heat treatment method. Microhardness and tensile tests were used to evaluate the mechanical properties; also the microstructures were also analyzed at different reaction points. It was observed from the results that, medium carbon low alloy steel, when intercritically heat treated and welded, possess significantly higher mechanical properties as compared to the conventional heat treated steel.
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