EN 10083-1 Grade C30R Steel – Cold‑Sheared (+S) for Automotive & Machine Engineering
Steel C30R is suitable for components without higher ductility requirements and enhanced workability while maintaining mechanical properties in vehicle manufacturing, engine and machine engeneering (transmission parts, crankshafts, cylinder). Lowest working temperature -25 °C.
Properties
General
| Property | Temperature | Value |
|---|---|---|
Density | 20.0 °C | 7.82 - 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 | ||
Poisson's ratio | 23.0 °C | 0.29 [-] | Typical for Medium Carbon Steel |
Shear modulus | 20.0 °C | 81 GPa | |
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 | |
Max service temperature, long | -25 - 0 °C | ||
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 - 480 J/(kg·K) | ||
200.0 °C | 499 - 520 J/(kg·K) | ||
300.0 °C | 517 J/(kg·K) | ||
400.0 °C | 536 - 610 J/(kg·K) | ||
500.0 °C | 558 J/(kg·K) | ||
600.0 °C | 587 J/(kg·K) | ||
Thermal conductivity | 20.0 °C | 48 - 50 W/(m·K) | |
100.0 °C | 48.9 - 51 W/(m·K) | ||
200.0 °C | 47.5 - 48.2 W/(m·K) | ||
300.0 °C | 44.7 - 45.6 W/(m·K) | ||
400.0 °C | 41.6 W/(m·K) | ||
500.0 °C | 38.6 W/(m·K) | ||
600.0 °C | 35.5 W/(m·K) | ||
Thermal diffusivity | 20.0 °C | 13.3 mm²/s | |
100.0 °C | 12.6 mm²/s | ||
200.0 °C | 11.5 mm²/s | ||
300.0 °C | 10.2 mm²/s | ||
400.0 °C | 8.9 mm²/s | ||
500.0 °C | 7.5 mm²/s | ||
600.0 °C | 6 mm²/s | ||
Electrical
| Property | Temperature | Value |
|---|---|---|
Electrical resistivity | 20.0 °C | 1.2E-7 - 2.17E-7 Ω·m |
100.0 °C | 2.62E-7 Ω·m | |
200.0 °C | 3.32E-7 Ω·m | |
300.0 °C | 4.2E-7 Ω·m | |
400.0 °C | 5.23E-7 Ω·m | |
500.0 °C | 6.41E-7 Ω·m | |
600.0 °C | 7.8E-7 Ω·m | |
Chemical properties
| Property | Value |
|---|---|
Carbon | 0.27 - 0.34 % |
Chromium | 0.4 % |
Copper | 0.3 % |
Manganese | 0.5 - 0.8 % |
Molybdenum | 0.1 % |
Nickel | 0.4 % |
Phosphorus | 0.03 - 0.04 % |
Silicon | 0.1 - 0.4 % |
Sulfur | 0.02 - 0.04 % |
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