Die steel is a type of steel that is specifically used to make molds and can be divided into many different types according to its chemical composition, heat treatment process, and use. Here are a few common types of die steel.
Cold work die steel.
Cold work die steel is mainly used to manufacture cold work dies, such as stamping dies, shearing dies, bending dies, etc. This steel has high hardness, wear and impact resistance, is able to work at low temperatures, and maintains good dimensional stability. Common cold work die steels include CR12, CR12MOV, CR12MO1V1, etc.
2.Hot work die steel.
Hot work die steel is mainly used to manufacture hot work molds, such as die-casting molds, plastic molds, hot shear molds, etc. This steel has high heat, wear and impact resistance, is able to work at high temperatures, and can maintain good dimensional stability. Common hot work die steels are H13, H11, H21, etc.
3.Plastic mold steel.
Plastic mold steel is mainly used to manufacture plastic molds, such as injection molds, extrusion molds, blow molds, etc. This steel has high hardness, wear and corrosion resistance, is able to work at high temperatures, and can maintain good dimensional stability. Common plastic mold steels include P, NAK80, etc.
4.High-speed steel.
High-speed steel is mainly used to make cutting tools such as cutters, milling cutters, drills, etc. This steel has high hardness, wear resistance and high temperature resistance, can work under high-speed cutting conditions, and can maintain good cutting performance. Common high-speed steels include W18Cr4V, W6Mo5Cr4V2, etc.
5.Stainless steel.
Stainless steel is mainly used to make some special parts of the mold, such as guide pillars, guide bushings, threaded sleeves, etc. This steel has high corrosion and wear resistance, can work in wet, corrosive environments, and can maintain good dimensional stability. Common stainless steels include SUS420, SUS440C, etc.
6.High-strength steel.
High-strength steel is mainly used to make large molds, such as automobile molds, ship molds, etc. This steel has high strength, toughness and wear resistance, can withstand large loads, and can maintain good dimensional stability. Common high-strength steels include 718H, P20H, etc.
The above are a few common types of die steel, each with its specific chemical composition, heat treatment process and application requirements. When choosing a mold steel, it is necessary to choose according to the specific mold type, working conditions and requirements to ensure the quality and performance of the mold.