Product Description
- SKH51 possesses the characteristics of high carbon (C) and high speed steel (W), providing excellent hardness, wear resistance, and heat resistance.
- It has excellent cutting performance and is suitable for high-speed cutting and cutting of metal materials such as steel, cast iron, and stainless steel.
- It has good thermal stability and can maintain hardness and cutting performance at high temperatures, making it suitable for high-temperature machining environments.
Detailed introduction
SKH51 is a high-speed steel, also known as M2 high-speed steel, which has excellent cutting performance and heat resistance and is widely used in the manufacture of cutting tools, drills and inserts.
| SKH51 main ingredients | percentage |
|---|---|
| Carbon (C) | 0.80-0.90% |
| Silicon (Si) | 0.20-0.45% |
| Manganese (Mn) | 0.20-0.45% |
| Phosphorus (P) | ≤ 0.030% |
| Sulfur (S) | ≤ 0.030% |
| Chromium (Cr) | 3.75-4.50% |
| Molybdenum (Mo) | 4.50-5.50% |
| Cobalt (Co) | 5% |
| Nickel (Ni) | ≤ 0.60% |
| Vanadium (V) | ≤ 0.30% |
| Titanium (Ti) | ≤ 0.20% |
Country Numbers
| nation | Steel grade |
|---|---|
| Japan JIS | JIS G 4403 SKH51 |
| American AISI / SAE | ASTM A600 M2 |
| China GB | GB/T 9943 W6Mo5Cr4V2 |
| Europe EN | EN ISO 4957 HS6-5-2 |
| German DIN | DIN EN ISO 4957 HS6-5-2 |
♦The standards and grades of chemical composition vary slightly from country to country. The information in the table above is for reference only. For detailed ingredient content, please refer to the databases of each country.
Main application scope
- Cutting tool manufacturing: SKH51 is commonly used in the manufacture of various high-speed cutting tools, such as drills, end mills, and cutting tools. Its excellent hardness and wear resistance enable it to meet the demands of high-speed cutting and provide good machinability.
- Mold manufacturing: Due to its good thermal stability and high-temperature hardness, SKH51 is often used in the manufacture of molds, especially high-speed molds and high-temperature molds, such as hot press molds and injection molds.
- Cold working tool manufacturing: SKH51 is also widely used in the manufacture of cold working tools, such as cooling molds and cutting molds, to meet the needs of cold working and has excellent cutting performance and wear resistance.
- Special tool manufacturing: In addition to the above application areas, SKH51 is also often used to manufacture special tools, such as pipe cutting tools and drilling tools, to meet special processing needs.
Application


