| | | Well suited for processing chemically aggressive and acid-releasing plastics such as PVC, amino plastics and halogenated flame retardant additives. Modified corrosion-resistant mould steel, polishable, etch-grain-able and economic to machine. Applications: Injection moulds, mould inserts, slit dies, profile dies, extrusion dies, drop forging tools and coaxial housings for processing PVC amino plastics and additives; blow moulds. The steel Buderus 2316 ISO-B mod. is machined and used in the hardened and tempered state. It has a wear-resistant surface, | | is pressure-resistant and tough, and can be used hardened to about 50 HRC because of its modified composition. When processing amino plastics and PVC alloys, highly aggressive by-products such as hydrochloric acid (HCl) can occur at high working temperatures (> 160 °C), causing corrosive attack of the mould | | surface. No mould steel is resistant to that. A production temperature of 160 °C should therefore not be exceeded. To avoid inter-crystalline corrosion effects (surface and pitting corrosion), environmental factors such as the plastic, operating temperature and corrosiveness of the cooling water must be taken into account. | | |