High Corrosion Resistance And High Strength Stainless Steel And Method For Manufacturing Same

Abstract: A high corrosion resistance and high strength stainless steel, according to one example of the present invention, comprises, in wt%, 0.01-0.1% of C, 0.01-0.1% of N, 0.01-1.0% of Si, 0.01-3.0% of Mn, 10.0-20.0% of Cr, 0.001-1.0% of Al, at most 0.05% of P, at most 0.01% of S, and the remainder in Fe and other unavoidable impurities, wherein the distribution of carbides with a diameter of at least 0.5 ? is at most 7/100 ?2 per unit area, and the microstructure is dual phase with a martensite phase and a ferrite phase, and the martensite phase is at least 20% in area ratio.

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