EN 10277‑5 Grade C40E Steel: High‑Temperature Performance & Precision Machining
Steel C40E is suitable for heat-resistant screws and larger forged parts as well as for parts of complexer form (e.g. gear wheels, camshafts) in vehicle and machine engineering. Lowest application temperature -25°C. As a bright steel product it is used in the form of bars, bright, straight, in various conditions (see DIN EN 10277 : 1999-10).
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 | ||
Hardness, Brinell | 20.0 °C | 163 - 211 [-] | |
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 | 550 - 710 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 | |
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 | 461 - 480 J/(kg·K) | ||
100.0 °C | 479 - 500 J/(kg·K) | ||
200.0 °C | 499 - 550 J/(kg·K) | ||
300.0 °C | 517 - 590 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 | 48 - 52 W/(m·K) | |
100.0 °C | 48.9 - 50.6 W/(m·K) | ||
200.0 °C | 47.5 - 48.1 W/(m·K) | ||
300.0 °C | 44.7 - 45.7 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 | 0.37 - 0.44 % |
Chromium | 0.4 % |
Manganese | 0.5 - 0.8 % |
Molybdenum | 0.1 % |
Nickel | 0.4 % |
Phosphorus | 0.03 - 0.04 % |
Silicon | 0.4 % |
Sulfur | 0.035 % |
Metal
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- EN 10277-5 Grade C60R Steel – Rolled & Turned with SH for High‑Load Applications
- EN 10277-5 Grade C35E Rolled & Turned Steel (+SH) – Ideal for High-Load Vehicle & Machine Parts
- EN 10277-5 Grade C35R – Bright, Rolled & Turned Steel for Vehicle & Engine Parts
- EN 10277-5 Grade C40R Steel: Rolled & Turned (SH) – High-Strength, Excellent Workability
- EN 10277-5 Grade C45E Steel – Rolled, Turned & Heat‑Treatable for Heavy‑Duty Applications
- EN 10277-5 Grade C45R Rolled & Turned Steel – High Workability & Reliable Strength (+SH)
- EN 10277‑5 Grade C50E Steel – Rolled, Turned, and Hot‑Finished
- EN 10277-5 Grade C50R: Rolled & Turned Steel for High-Performance Applications
- EN 10277-5 Grade C60E – High-Strength Rolled & Turned Steel for Heavy-Duty Vehicle & Engine Applications