Durapur 3520: Premium 100CrMnSi6-4 Steel for High-Performance Rolling Bearings
1.3520 (100CrMnSi6-4) is used in the rolling bearing industry for balls and rollers up to 90mm in diameter, as well as rings up to a finished wall thickness of 50 mm.
Properties
General
| Property | Value |
|---|---|
Density | 7.6 g/cm³ |
Mechanical
| Property | Value | Comment |
|---|---|---|
Elastic modulus | 210 GPa | |
Hardness, Brinell | 217 - 375 [-] | Depending on the delivery condition |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | 100 °C | 1.15e-05 1/K | for 20°C to the mentioned temperature |
200 °C | 1.25e-05 1/K | for 20°C to the mentioned temperature | |
300 °C | 1.33e-05 1/K | for 20°C to the mentioned temperature | |
400 °C | 1.39e-05 1/K | for 20°C to the mentioned temperature | |
Specific heat capacity | 470 J/(kg·K) | ||
Thermal conductivity | 42.6 W/(m·K) |
Electrical
| Property | Value |
|---|---|
Electrical resistivity | 1.9e-07 Ω·m |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.93 - 1.05 % |
Chromium | 1.4 - 1.65 % |
Iron | Balance |
Manganese | 1 - 1.2 % |
Molybdenum | 0.1 % |
Phosphorus | 0.025 % |
Silicon | 0.45 - 0.75 % |
Sulfur | 0.015 % |
Technological properties
| Property | ||
|---|---|---|
| Application areas | It is used in the rolling bearing industry for balls, rollers and rings. | |
| Heat Treatment | Normalizing 860-890°C (Air), Soft annealing: 740-790°C, Stress Relieving: 600-650°C (Air), Quenching: 830-870°C (Oil, Polymer) | |
| Hot forming | It is formable at 850-1100°C should then cooled more slowly or in still air. | |
| Processing history | Quenched and Tempered | |
| Welding | It is not weldable. | |
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