1.6523 (AISI 8620, 20NiCrMo2) is an alloy steel type that is commonly used in applications that require high hardness, durability, and strength properties.
1.6523 (AISI 8620, 20NiCrMo2) is an alloy steel type that is commonly used in applications that require high hardness, durability, and strength properties.
1.6523 (AISI 8620, 20NiCrMo2) steel contains elements such as nickel, chromium, molybdenum, manganese, carbon, and iron. When processed to have a hardened core, this steel provides high strength and impact resistance. Additionally, it is suitable for surface-hardening processes.
1.6523 (AISI 8620, 20NiCrMo2) steel is popular due to its high strength and durability properties. However, there are also some disadvantages to this steel. For instance, difficulties in welding processes can occur, and oxidation might take place at high temperatures. Therefore, proper application and processing are essential.
The surface hardness and hardness depth of 1.6523 (AISI 8620, 20NiCrMo2) steel can be adjusted through case hardening.
Chemical Component and Material Code:
Carbon |
Manganese |
Molybdenum |
Silicon |
Phosphorus |
Sulfur |
Chromium |
Nickel |
0,17 - 0,23 |
0,65 - 0,95 |
0,15 - 0,25 |
Max 0,40 |
Max 0,025 |
Max 0,035 |
0,35 - 0,70 |
0,40 - 0,70 |
Hardness |
24-34 |
HRC |
Tensile Strength |
530 |
MPa |
Yield Strength |
385 |
MPa |
Elongation L=5D |
18 |
% |
Coefficient of Thermal Expansion |
6,6 |
1/K * 10-6 |
Thermal Conductivity (20°C) |
46.6 |
W/mK |
Density |
7.85 |
g/cm3 |
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