Hot Work Tool Steel

Durable H-Series for High-Temperature Tooling

Hot work tool steels are engineered for tools exposed to high heat, pressure, and thermal cycling. H-series grades retain hardness and strength at elevated temperatures to keep tooling stable under load. They resist thermal fatigue and heat checking during repeated heating and cooling cycles. Balanced alloy designs provide good hardenability and consistent heat treatment response. Hot work tool steels support reliable machining and deliver long service life in harsh conditions. They are widely used in die casting, hot extrusion, forging, and other high-temperature processes.