Typical Application: used for long life or large size plastic mould and want polish to mirror like plastic dies. Suitable for manufacturing low melting point alloy die casting., thermoplastic blow molding mold. heavy mold main components. Heat Treatment: Forge: at **0?****0? Cool slowly and anneal immediatedly Anneal: at **0?***0? Cool slowly in furnace Stress Relieve: at to **0?***0? Cool in still air Harden: Preheat at **0?***0? raise to **0?***0? Cool in air, iol or into salt bath held at **0?***0? and then air or oil cooling according to the steel shape and size.
