Cold work mold steel

Cast steels are steels that have been cast into sand molds to form finished or semifinished machine parts or other components. Mostly, the general characteristics of steel castings are very comparable to those of wrought steels. Cast and wrought steels of equivalent composition respond similarly to heat treatment and have fairly similar properties. A major difference is that cast steel has a more isotropic structure. Therefore, properties tend to be more uniform in all directions and do not vary according to the direction of hot or cold working as in many wrought-steel products. 

Air-hardening medium-alloy tool steels (cold worked) A Air-hardening medium-alloy tool steels are best suited for applications such as machine ways, brick mold liners, and fuel-injector nozzles. The airhardening types are specified for thin parts or parts with severe changes in cross section, i.e., parts that are prone to crack or distort during hardening. Hardened parts from these steels have a high surface hardness however, these steels should not be specified for service at elevated temperatures. 

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