Product Description
- SCM440 has good hardness and strength, and is a high-strength alloy steel.
- With proper heat treatment, high hardness and good wear resistance can be obtained, making it suitable for manufacturing wear-resistant and high-load parts.
- It has good hardenability, and the microstructure after heat treatment is uniform and fine, which improves the strength and toughness of the material.
Detailed introduction
SCM440 is a high-strength alloy steel commonly used in the manufacture of machine parts and tools.
| SCM440 main components | percentage |
|---|---|
| Carbon (C) | 0.38-0.43% |
| Silicon (Si) | 0.15-0.35% |
| Manganese (Mn) | 0.60-0.85% |
| Phosphorus (P) | ≤ 0.030% |
| Sulfur (S) | ≤ 0.040% |
| Chromium (Cr) | 0.90-1.20% |
| Molybdenum (Mo) | 0.15-0.25% |
| Nickel (Ni) | ≤ 0.030% |
| Iron (Fe) | The remaining part |
Country Numbers
| nation | Steel grade |
|---|---|
| Japan JIS | JIS G 4053 SCM440 JIS SCM440 |
| American AISI / SAE | ASTM A29 AISI 4140 |
| China GB | GB/T 3077-1999 |
| Europe EN | EN 10083-3 |
| German DIN | DIN 42CrMo4 |
♦The standards and grades of chemical components 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
- Mold manufacturing: Due to its excellent wear resistance and high hardness, SCM440 is often used in the manufacture of molds, hot and cold pressing molds, etc.
- Mechanical parts: The high strength and hardness of SCM440 make it an ideal material for manufacturing various mechanical parts, such as bearings, screws, gears, etc.
- Bearings and moving parts: In bearings and moving parts, SCM440 can be used to manufacture parts that withstand high loads and high speeds, such as axles and bushings.
- Automotive parts: SCM440 is commonly used in the manufacture of automotive parts, such as drive shafts, gears, bolts, etc., to meet the requirements of high load and high strength.
- Tool manufacturing: Due to its excellent wear resistance and high hardness, SCM440 is suitable for manufacturing various cutting tools, molds and hot and cold stamping dies.
- Mechanical Structures: SCM440 can also be used to manufacture load-bearing structural components in mechanical structures, such as bolts and nuts.
In summary, SCM440 is widely used in engineering and manufacturing fields that require high strength, high hardness, and high wear resistance due to its excellent mechanical properties and wear resistance.
Application
