EN 10277-5 Grade Ck45 cold drawn or turned and normalized
EN 10277-5 Grade Ck45 cold drawn or turned and normalized introduction
Steel CK 45 is suitable for mean strained parts of higher dimensions (heavy forged parts) and complexer forms in vehicle manufacturing and machine engineering (e.g. ship shafts, transmission parts, wheel hubs). Lowest application temp. -25 °C, favorable creep behaviour up to 480 °C.
Equivalent material: NBN C45-2, GB 45, AFNOR XC48H1, BS 080M46, ISO C45E4, UNI C45, JIS S45C, SS 1672, UNE F.1140-C45K, DIN 1.1191, DIN C45E, DIN GS-Ck45, AFNOR XC45, AFNOR C45E, AFNOR C45RR, BS 080H46, BS CFS8, BS C45E, BS AW2, UNE C45K, AISI 1045, AISI 1045H, SAE 1045, SAE 1045H, JIS S45CM, JIS S48C, EN C45E, EN 1.1191, ISO C45E, ISO CE45E4, ISO CS45, ISO S48C, GOST 45, GB U20452, GB/T 45, GB/T SM45, GB/T T10450, GB/T U20452, GB/T CRB800H, GB/T 45H, GB/T 45AH, GB/T C33457, GB/T ZGD345-570, ASTM Grade 1045, ASTM 1045, UNS H10450, UNS G10450, UNS G10420
EN 10277-5 Grade Ck45 cold drawn or turned and normalized general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 g/cm³ |
EN 10277-5 Grade Ck45 cold drawn or turned and normalized 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 |
| 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 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 10277-5 Grade Ck45 cold drawn or turned and normalized chemical
| Property |
Value |
| Carbon |
Carbon of 0.42 - 0.5 % |
| Manganese |
Manganese of 0.5 - 0.8 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.03 % |
EN 10277-5 Grade Ck45 cold drawn or turned and normalized 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 10277-5 Grade Ck45 cold drawn or turned and normalized mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
-100.0 °C |
Elastic modulus of 217 GPa |
- |
| - |
20.0 °C |
Elastic modulus of 212 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 207 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 199 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 192 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 184 GPa |
- |
| - |
500.0 °C |
Elastic modulus of 175 GPa |
- |
| - |
600.0 °C |
Elastic modulus of 164 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 14 - 16 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Medium Carbon Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 75 - 80 GPa |
Typical for Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 580 - 620 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 305 - 340 MPa |
- |
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