Analysis of the application range of die steel: What is the difference between cold work die steel, hot work die steel and plastic die steel?

When the mold is used, since the mold is widely used, the working conditions of the various molds are very different. Therefore, the material for manufacturing the mold is wide, and the most widely used mold material is the mold steel. From general carbon structural steel, carbon tool steel, alloy structural steel, alloy tool steel, spring steel, high speed tool steel, stainless heat resistant steel to maraging steel and powder high speed steel for special molds, Powder high alloy mold steel, etc. According to the application, die steel can be divided into three categories: cold work die steel, hot work die steel and plastic die steel.

Cold work die steel

Cold work die steel is mainly used to manufacture molds for press forming workpieces in a cold state. Such as: cold blanking die, cold stamping die, cold drawing die, imprinting die, cold extrusion die, thread pressing die and powder pressing die. Cold work die steels range from a wide range of carbon tool steels, alloy tool steels, high speed tool steels to powder high speed tool steels and powder high alloy die steels.

Hot work die steel

Hot work die steel is mainly used to manufacture molds for press working on workpieces at high temperatures. Such as: hot forging die, hot extrusion die, die-casting die, hot upsetting die, etc. Commonly used hot work die steels are: medium-high carbon content alloy mold steel with added alloying elements such as Cr, W, Mo, V; special hot work die steel, sometimes made of high alloy austenitic heat-resistant die steel .

Plastic mold steel

Due to the wide variety of plastics, the requirements for plastic products vary widely, and various performance requirements are also imposed on the materials used to make plastic molds. Therefore, many industrially developed countries have formed a wide range of plastic mold steel series. Including carbon structural steel, carburized plastic mold steel, pre-hardened plastic mold steel, age-hardening plastic mold steel, corrosion-resistant plastic mold steel, easy-cut plastic mold steel, integral hardened plastic mold steel, martensite Aging steel and plastic mold steel for mirror polishing.