HOT WORK TOOL STEELS

Hot work steels are designed to work at high temperatures. Its chemical and physical properties are not found in carbon and structural steels. The material properties required to work in such difficult conditions are listed below;

• Hot wear resistance
• Erosion resistance
• Oxidation resistance
• Thermal fatigue and hot cracking resistance
• Thermal shock resistance
• Temper strength
• Softness and toughness
• Excellent machinability
• High thermal conductivity
• Low coefficient of friction

These features are obtained after a balanced chemical analysis and a specific production process.

Oxidation is carried out at the working temperature to increase the surface resistance and hot jump resistance and to prevent the parts to lose their properties in a short time.

Hot work steels are absolutely sensitive to softening and resistant to heat. Also, at high operating temperatures, the grain size of the material must be affected at least in this situation.