Typical Application: Its applications are plastic mould, particularly for acid aggressive plastics (e. g acetate and PVC), or plastic containing abrasive fillers. Suited for the manufacture of glass, such as moulds of optical products. Heat Treatment: Forge: at **0?****0? Cool slowly and anneal immediatedly Anneal: at **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 cool
