EN 10250-2 Grade C45 normalized and tempered (+NT)
EN 10250-2 Grade C45 normalized and tempered (+NT) introduction
Steel C45 is suitable for mean loaded parts in vehicle, engine and machine engineering (e.g. transmission shafts, gear wheels, clutch parts).
Equivalent material: AS S1045, GB 45, GB U20452, IS 4, IS 45C8, JIS S45C, GOST 45, ASTM A521 Grade 1045, SAE 1045, UNS G10450, DIN 1.0503, DIN GS-C45, DIN C45, AFNOR C45, BS 080M46, UNI C45, SS 1650, UNE F.114, AISI 1045, AISI 1043, SAE 1043, JIS S45CM, EN 2C45, EN 1.0503, ISO C45, ISO CS45, GB/T 45, GB/T U20452, ASTM Grade 1045, UNS G10430, IS C45
EN 10250-2 Grade C45 normalized and tempered (+NT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 g/cm³ |
EN 10250-2 Grade C45 normalized and tempered (+NT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.08E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.19E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.25E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.36E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.41E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.45E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.49E-5 1/K |
- |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1380 - 1514 °C |
Typical for Medium Carbon Steel |
| Specific heat capacity |
-100.0 °C |
Specific heat capacity of 423 J/(kg·K) |
- |
| - |
20.0 °C |
Specific heat capacity of 461 J/(kg·K) |
- |
| - |
100.0 °C |
Specific heat capacity of 479 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 499 J/(kg·K) |
- |
| - |
300.0 °C |
Specific heat capacity of 517 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 536 J/(kg·K) |
- |
| - |
500.0 °C |
Specific heat capacity of 558 J/(kg·K) |
- |
| - |
600.0 °C |
Specific heat capacity of 587 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 41.7 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 43.4 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 43.2 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 41.4 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 39.1 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 36.7 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 34.1 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 11.6 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 11.3 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 10.5 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9.5 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.3 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.1 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.8 mm²/s |
- |
EN 10250-2 Grade C45 normalized and tempered (+NT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.42 - 0.5 % |
| Chromium |
Chromium of 0.4 % |
| Manganese |
Manganese of 0.5 - 0.8 % |
| Molybdenum |
Molybdenum of 0.1 % |
| Nickel |
Nickel of 0.4 % |
| Phosphorus |
Phosphorus of 0.05 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.045 % |
EN 10250-2 Grade C45 normalized and tempered (+NT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 2.5E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.95E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.65E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.53E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.56E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.74E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.13E-7 Ω·m |
EN 10250-2 Grade C45 normalized and tempered (+NT) mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
| - |
20.0 °C |
Elastic modulus of 210.11 - 212 GPa |
| - |
100.0 °C |
Elastic modulus of 205.02 - 207 GPa |
| - |
200.0 °C |
Elastic modulus of 198.84 - 199 GPa |
| - |
300.0 °C |
Elastic modulus of 191.42 - 192 GPa |
| - |
400.0 °C |
Elastic modulus of 183.23 - 184 GPa |
| - |
500.0 °C |
Elastic modulus of 173.19 - 175 GPa |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
| Elongation |
20.0 °C |
Elongation of 15 - 16 % |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 11 - 12 % |
| Hardness, Brinell |
20.0 °C |
Hardness, Brinell of 207 [-] |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
| - |
100.0 °C |
Poisson's ratio of 0.28 [-] |
| - |
200.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
300.0 °C |
Poisson's ratio of 0.29 [-] |
| - |
400.0 °C |
Poisson's ratio of 0.3 [-] |
| - |
500.0 °C |
Poisson's ratio of 0.3 [-] |
| Shear modulus |
20.0 °C |
Shear modulus of 82.04 GPa |
| - |
100.0 °C |
Shear modulus of 80.03 GPa |
| - |
200.0 °C |
Shear modulus of 77.09 GPa |
| - |
300.0 °C |
Shear modulus of 74.16 GPa |
| - |
400.0 °C |
Shear modulus of 70.76 GPa |
| - |
500.0 °C |
Shear modulus of 66.74 GPa |
| Tensile strength |
20.0 °C |
Tensile strength of 530 - 580 MPa |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 530 - 560 MPa |
| Yield strength |
20.0 °C |
Yield strength of 230 - 305 MPa |
| Yield strength, transverse |
20.0 °C |
Yield strength, transverse of 230 - 275 MPa |
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