SKH53 (tungsten-molybdenum general-purpose high-speed steel).
Tungsten-molybdenum general-purpose high-speed steel is a commonly used tool steel, which is favored for its high hardness, red hardness and wear resistance. Among them, SKH53 steel grade is widely used in various tool manufacturing fields because of its excellent performance. This article will introduce the performance characteristics, manufacturing process and application fields of SKH53 steel grade in detail.
1. Introduction to SKH53 steel grade.
SKH53 steel is a tungsten, molybdenum, vanadium alloy tool steel, also known as high-performance high-speed steel. It has high hardness, red hardness and wear resistance, as well as good toughness. Compared with traditional tungsten high-speed steel, the wear resistance and thermal fatigue resistance of SKH53 steel have been significantly improved.
Second, performance characteristics.
1.High hardness: The hardness of SKH53 steel can reach HRC64-66, making it have a higher cutting speed and cutting depth during machining.
2.Red hardness: SKH53 steel has excellent red hardness, which can still maintain high hardness at high temperatures, thus improving the service life of the tool.
3.Abrasion resistance: Due to the large amount of tungsten and molybdenum elements, the wear resistance of SKH53 steel has been significantly improved, reducing the wear and breakage of tools.
4.Toughness: SKH53 steel still has good toughness while maintaining high hardness, which avoids embrittlement of tools during use.
3. Manufacturing process.
1.Refining: Vacuum induction furnace smelting is used to ensure the purity of the steel.
2.Rolling: The melted ingots are rolled at high temperature to obtain uniform grain structure and good mechanical properties.
3.Forging: High-temperature forging of rolled steel to refine its grain structure and further improve its mechanical properties.
4.Heat treatment: After quenching and tempering treatment, the steel achieves the required hardness and toughness.
5.Surface treatment: In order to improve the wear resistance and corrosion resistance of the tool, SKH53 steel can be treated with a surface coating.
Fourth, the field of application.
Due to the excellent performance of SKH53 steel grade, it is widely used in various tool making fields. For example, it can be used to make high-efficiency machining tools such as cutting tools, drills, and milling cutters, and can also be used to make precision components such as molds and bolts. In these applications, SKH53 steel is able to provide superior processing efficiency and tool life, resulting in increased productivity and reduced production costs.