SKH55 Advanced Cold Die Tool Steel.
SKH55 is a high-grade cold die tool steel with excellent wear resistance and hardness, so it is widely used in the manufacture of cutting tools, stamping tools, drills and other high-hardness and high-wear-resistant tools. The following is a detailed introduction to SKH55 advanced cold die tool steel.
1. Chemical composition of SKH55.
The chemical composition of SKH55 mainly includes carbon, silicon, manganese, chromium, tungsten, molybdenum and other elements. Among them, the carbon content is higher, which can reach 10% or more, so it has good hardness and wear resistance. At the same time, the addition of other elements also further improves its comprehensive mechanical properties and red hardness.
Second, the performance characteristics of SKH55.
1.High hardness and high wear resistance: After proper heat treatment, the hardness of SKH55 can reach more than HRC60, which has excellent wear resistance and impact resistance, which can ensure the long life and stability of the tool.
2.Good red hardness: SKH55 can still maintain high hardness and wear resistance at high temperatures, and has good red hardness, which can meet the needs of high-speed cutting and high-temperature work.
3.Excellent processing performance: SKH55 has good toughness, is not easy to crack, can be sawed, milled, turned, planed and other processing, excellent processing performance.
4.High strength and high toughness: SKH55 can obtain high strength and toughness through proper heat treatment and processing technology, and can withstand large impact force and pressure.
3. Application fields of SKH55.
Due to its excellent wear resistance, hardness and red hardness, SKH55 is widely used in the manufacture of various high-hardness and high-wear-resistant tools, such as cutting tools, stamping tools, drills, etc. At the same time, it is also widely used in automotive, aviation, energy, electronics and other fields.
Fourth, the heat treatment process of SKH55.
The heat treatment process of SKH55 mainly includes two steps: quenching and tempering. Quenching is the heating of steel above the critical temperature, holding it for a period of time and then cooling it quickly to obtain a martensitic structure with high hardness and high wear resistance. Tempering is to heat the steel to the appropriate temperature, keep it warm for a period of time and then cool it slowly to eliminate internal stress, stabilize the structure and improve toughness. The specific heat treatment process parameters should be adjusted according to the needs of different applications.
5. Advantages and precautions of SKH55.
1.The advantages of SKH55 include high hardness, high wear resistance, high red hardness, excellent processing performance and toughness, etc., which can greatly improve the service life and work efficiency of the tool.
2.When using SKH55, care should be taken to avoid overheating and overuse to avoid deformation and damage to the tool. At the same time, regular maintenance and maintenance should be carried out to keep the tool in good condition.
3.For different application fields and processing needs, the appropriate SKH55 grade and heat treatment process should be selected according to the actual situation to achieve the best use effect.
In a word, as a high-grade cold die tool steel, SKH55 has excellent wear resistance, hardness and red hardness, and is widely used in various high-hardness and high-wear-resistant tool manufacturing fields. Through reasonable heat treatment technology and processing methods, it can give full play to its excellent performance and improve the service life and work efficiency of the tool.