Low C - 13%Cr martensitic stainless steels have been widely used in the oil and gas industries because of their high strength and excellent corrosion res istance in corrosive conditions. Recently, higher strength(over 110 ksi grade) corrosion resistant alloys have been requested from users. Nb addition is consider ed to be one of the most appropriate strengthening methods. In this paper, the strengthening of low C - 13%Cr martensitic stainless steel is examined. The e ffect of Nb addition on mechanical properties and corrosion resistance of low C - 13%Cr martensitic stainless steel i s discussed. An optimized chemical composition i s also studied.

Subject
Materials, Tempering temperature, Precipitates, Transmission electron microscopy, Tensile tests, Hardness measurements, Chemical composition, Steel, Corrosion resistance, Tempering, Yield strength, Austenite, Martensitic steel
Keywords:
Martensitic stainless steel, high strength, corrosion resistance
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2007
Association for Materials Protection and Performance (AMPP)
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