Kapstar is a high hard, precipitation hardening mold steel suitable for production of machined or EDM’d plastic mold, rubber mold, and zinc die casting die components. Kapstar is supplied at about 40 HRC and further heat treating is generally not required. It is a through-hardened steel that exhibits uniform hardness through thick and thin sections. It is easily machined, polished, textured, and welded.Information provided by Crucible Industries |