NiMark® 300/M300

NiMark® 300 is a low-carbon, nickel-cobalt-molybdenum high-temperature alloy capable of attaining yield strengths in excess of 270 ksi (1862 MPa) through simple, low temperature heat treatment at 900°F (482°C). It exhibits good ductility at high strength levels, excellent notch ductility, and is readily welded. NiMark® 300 is one of a family of "maraging" nickel steels which is martensitic yet ductile in the solution treated condition and attains ultra-high strength through a single low temperature aging treatment.