Maraging 250T (also referred to as Maraging C250T and Vascomax 250T) is a vacuum induction melted plus vacuum arc melted, low-carbon, nickel-cobalt-molybdenum high temperature alloy capable of attaining yield strengths in excess of 240 ksi (1655 MPa) through a simple, low temperature heat treatment. Maraging 250T exhibits good ductility at high strength levels and is readily welded.
Maraging C250T is one of a family of "maraging" nickel steels (including Maraging 300T and 350T) which are ductile in the solution treated condition and attains ultrahigh tensile strength by aging at temperatures in the range of 850/950°F (454/510°C).