The mechanical properties and corrosion resistance of wrought duplex stainless steels have been characterized extensively in the literature. Cast versions of these alloys, however, have received much less attention. Consequently, relatively little data is available to assist in selection of cast duplex stainless steels. In order to help provide such information several commercially available cast duplex stainless steels were evaluated.

The alloys were compared in terms of mechanical properties and localized corrosion resistance in FeCl3 solutions. The alloys tested gave widely varying degrees of impact toughness, crevice corrosion resistance and pitting corrosion resistance.

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