Explanation

Ultra high strength steel strengthened by imermetallif compound dispersed and precipitated on high nickel martensite matrix with extremely low carbon content. The characteristics of maraging steel are: the martensite matrix has not only high strength but also good plasticity and toughness; Various forms of cold working can be carried out before age hardening. It has good weldability; After solution treatment, martensite can be obtained only by air cooling, and the deformation and cracking tendency of heat treatment is very low; After forming, aging treatment at a lower temperature (400-500 ° C) can significantly strengthen. Martensitic time effective steel is often used to make structural parts and shells of aircraft and rockets, high-strength bolts, engine valve springs, petrochemical high-pressure containers, etc.

Classification