Product Description
  • SNCM220 has good hardness and strength, and is a high-strength alloy steel.
  • With proper heat treatment, high hardness and wear resistance can be obtained, making it suitable for parts that withstand high loads and high pressures.
  • 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

SNCM220 is a high-strength alloy steel, mainly used to manufacture mechanical parts that withstand high loads and high temperatures.

SNCM220 main components percentage
Carbon (C) 0.17-0.23%
Silicon (Si) 0.15-0.35%
Manganese (Mn) 0.40-0.70%
Phosphorus (P) ≤ 0.030%
Sulfur (S) ≤ 0.030%
Chromium (Cr) 0.90-1.20%
Molybdenum (Mo) 0.15-0.30%
Nickel (Ni) 0.20-0.35%
Iron (Fe) The remaining part
Country Numbers
nation Steel grade
Japan JIS JIS G 4103 SNCM220
JIS SNCM220
American AISI / SAE ASTM A29
AISI 8620
China GB GB/T 3077-1999
Europe EN EN 10083-3
German DIN DIN 20NiCrMo2-2

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
  • Mechanical parts manufacturing: Due to its good strength, hardness and wear resistance, SNCM220 is often used to manufacture mechanical parts such as bearings, gears, bolts and nuts.
  • Mold making: SNCM220 has good wear resistance and high temperature stability, and is suitable for manufacturing molds, pressure machinery parts and injection molds, etc.
  • Automotive Industry: In the automotive manufacturing industry, the SNCM220 can be used to manufacture components such as engine parts, transmission parts, drive shafts, and wheel bearings.
  • Aerospace: Due to its excellent strength and corrosion resistance, SNCM220 can be used to manufacture parts in the aerospace industry, such as aircraft engine parts and aerospace structural components.
  • Bearings and moving parts: The strength and hardness of SNCM220 make it suitable for manufacturing bearings, rolling bearings, moving parts and mechanical transmission systems.
Application