EN 10083-2 Grade C55R - Normalized or Normalized Formed Steel for High-Performance Applications
Steel C55R is suitable for parts requiring improved workability while maintaining constant strength qualities in vehicle manufacturing, engine and machine engeneering (e.g. gear wheels, shafts, pinions).
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.8 - 7.85 g/cm³ |
Mechanical
| Property | Temperature | Value | Comment |
|---|---|---|---|
Elastic modulus | -100.0 °C | 217 GPa | |
20.0 °C | 210 - 212 GPa | ||
100.0 °C | 205 - 207 GPa | ||
200.0 °C | 195 - 199 GPa | ||
300.0 °C | 185 - 192 GPa | ||
400.0 °C | 175 - 184 GPa | ||
500.0 °C | 175 GPa | ||
600.0 °C | 164 GPa | ||
Elongation | 20.0 °C | 11 - 12 % | |
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Medium Carbon Steel |
Shear modulus | 20.0 °C | 81 GPa | |
Tensile strength | 20.0 °C | 620 - 680 MPa | |
Yield strength | 20.0 °C | 300 - 370 MPa | |
Thermal
| Property | Temperature | Value | Comment |
|---|---|---|---|
Coefficient of thermal expansion | -100.0 °C | 1.08E-5 1/K | |
20.0 °C | 1.19E-5 1/K | ||
100.0 °C | 1.11E-5 - 1.25E-5 1/K | ||
200.0 °C | 1.21E-5 - 1.3E-5 1/K | ||
300.0 °C | 1.29E-5 - 1.36E-5 1/K | ||
400.0 °C | 1.35E-5 - 1.41E-5 1/K | ||
500.0 °C | 1.45E-5 1/K | ||
600.0 °C | 1.49E-5 1/K | ||
Max service temperature | 500 °C | Typical for Carbon Steel | |
Melting point | 1380 - 1514 °C | Typical for Medium Carbon Steel | |
Specific heat capacity | -100.0 °C | 423 J/(kg·K) | |
20.0 °C | 460 - 461 J/(kg·K) | ||
100.0 °C | 479 J/(kg·K) | ||
200.0 °C | 499 J/(kg·K) | ||
300.0 °C | 517 J/(kg·K) | ||
400.0 °C | 536 J/(kg·K) | ||
500.0 °C | 558 J/(kg·K) | ||
600.0 °C | 587 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 41.7 - 52 W/(m·K) | |
100.0 °C | 43.4 - 50.6 W/(m·K) | ||
200.0 °C | 43.2 - 48.1 W/(m·K) | ||
300.0 °C | 41.4 - 45.7 W/(m·K) | ||
400.0 °C | 39.1 W/(m·K) | ||
500.0 °C | 36.7 W/(m·K) | ||
600.0 °C | 34.1 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 11.6 mm²/s | |
100.0 °C | 11.3 mm²/s | ||
200.0 °C | 10.5 mm²/s | ||
300.0 °C | 9.5 mm²/s | ||
400.0 °C | 8.3 mm²/s | ||
500.0 °C | 7.1 mm²/s | ||
600.0 °C | 5.8 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.2E-7 - 2.5E-7 Ω·m |
100.0 °C | 2.95E-7 Ω·m | |
200.0 °C | 3.65E-7 Ω·m | |
300.0 °C | 4.53E-7 Ω·m | |
400.0 °C | 5.56E-7 Ω·m | |
500.0 °C | 6.74E-7 Ω·m | |
600.0 °C | 8.13E-7 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.52 - 0.6 % |
Chromium | 0.4 % |
Copper | 0.3 % |
Manganese | 0.6 - 0.9 % |
Molybdenum | 0.1 % |
Nickel | 0.4 % |
Phosphorus | 0.03 % |
Silicon | 0.1 - 0.4 % |
Sulfur | 0.02 - 0.04 % |
Metal
- EN 10083‑2 Grade C60R: Normalized & Normalized‑Formed Steel for High‑Load Applications
- EN 10083-2 Grade 28Mn6: Normalized or Normalized Formed Steel for Automotive and Machine Components
- EN 10083-2 Grade C40E – Normalized or Normalized Formed Steel for High-Temperature Applications
- EN 10083-2 Grade C45R Normalized or Normalized Formed Steel (+N) – Ideal for Automotive & Machine Components
- EN 10083-2 Grade C50R: Normalized or Formed Steel for High Workability and Strength
- EN 10083-2 Grade C55 Normalized Steel for High-Load, Wear-Resistant Applications
- EN 10083-2 Grade C60: Normalized or Normalized-Formed Steel for High-Strength Applications
- EN 10083-2 Grade C55E: Normalized/Normalized Formed Steel for Heavy‑Duty Applications
- EN 10083-2 Grade C60E – Normalized/Normalized Formed Steel for Heavy-Duty Applications
- EN 10083-2 Grade C35E – Normalized/Normalized Formed Steel for Vehicle & Machine Engineering