Maraging Steels for Die Casting Dies

A new family of steels, called maraging steels, is being used quite successfully as die casting dies for casting aluminum.

The maraging steels were developed for high strength pressure vessel applications such as solid fuel rocket motor cases. These steels have high strength with excellent toughness. In addition, they are relatively easy to heat treat and have good dimensional stability. Repairs by welding are accomplished with relative ease.