DIN 17200 Grade C45 quenched and tempered (+QT)
DIN 17200 Grade C45 quenched and tempered (+QT) introduction
Steel C 45 is suitable for mean strained parts in vehicle manufacturing, engine and machine engineering (e.g. transmission shafts, gear wheels, transmission parts). Lowest application temp. -25 °C, favorable creep behaviour up to 480 °C.
Equivalent material: NBN C45-1, AFNOR AF65C45, BS 080M46, GOST 45, ISO C45, UNI C45, PN 45, SS 1672, ASTM 1045, DIN 1.0503, DIN GS-C45, AFNOR C45, SS 1650, UNE F.114, AISI 1045, AISI 1043, SAE 1045, SAE 1043, JIS S45C, JIS S45CM, EN C45, EN 2C45, EN 1.0503, ISO CS45, GB 45, GB U20452, GB/T 45, GB/T U20452, ASTM Grade 1045, UNS G10430, UNS G10450, IS C45
DIN 17200 Grade C45 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 - 7.85 g/cm³ |
DIN 17200 Grade C45 quenched and tempered (+QT) 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 1.11E-5 - 1.25E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.21E-5 - 1.3E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.29E-5 - 1.36E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.35E-5 - 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 |
| Max service temperature, long |
- |
Max service temperature, long of -25 - 480 °C |
- |
| 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 - 480 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 - 52 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 43.4 - 50.6 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 43.2 - 48.1 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 41.4 - 45.7 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 |
- |
DIN 17200 Grade C45 quenched and tempered (+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.42 - 0.5 % |
| Manganese |
Manganese of 0.5 - 0.8 % |
| Phosphorus |
Phosphorus of 0.05 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.045 % |
DIN 17200 Grade C45 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.2E-7 - 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 |
DIN 17200 Grade C45 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
| - |
20.0 °C |
Elastic modulus of 210 - 212 GPa |
| - |
100.0 °C |
Elastic modulus of 205 - 207 GPa |
| - |
200.0 °C |
Elastic modulus of 195 - 199 GPa |
| - |
300.0 °C |
Elastic modulus of 185 - 192 GPa |
| - |
400.0 °C |
Elastic modulus of 175 - 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 14 - 17 % |
| 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 [-] |
| Reduction of area |
20.0 °C |
Reduction of area of 30 - 40 % |
| Shear modulus |
20.0 °C |
Shear modulus of 81 - 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 630 - 850 MPa |
| Yield strength |
20.0 °C |
Yield strength of 370 - 500 MPa |
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