DIN 17230 Grade 100CrMnMo8 annealed to achieve spheroidized carbides (+AC)
DIN 17230 Grade 100CrMnMo8 annealed to achieve spheroidized carbides (+AC) introduction
100 CrMnMo 8 is an anti-friction bearing steel that is hardened all the way through. It reaches surface hardnesses of approximately 62 HRC and is used for heavy rings and rolls with high finished wall thicknesses.
Equivalent material: ISO 5, DIN 100CrMnMoSi8-4-6, DIN 1.3539, BS 100CrMnMoSi8-4-6, JIS 100CrMnMoSi8-4-6, EN 1.3539, ISO 100CrMnMoSi8-4-6, ASTM 100CrMnMoSi8-4-6
DIN 17230 Grade 100CrMnMo8 annealed to achieve spheroidized carbides (+AC) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.8 - 7.85 g/cm³ |
DIN 17230 Grade 100CrMnMo8 annealed to achieve spheroidized carbides (+AC) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
-100.0 °C |
Coefficient of thermal expansion of 1.05E-5 1/K |
- |
| - |
20.0 °C |
Coefficient of thermal expansion of 1.15E-5 1/K |
- |
| - |
100.0 °C |
Coefficient of thermal expansion of 1.21E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.27E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.36E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.4E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.44E-5 1/K |
- |
| Melting point |
- |
Melting point of 1382 - 1529 °C |
Typical for Chromium 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 33.7 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 36.2 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 37.8 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 37.2 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 35.7 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 34 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 32 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 9.4 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 9.4 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 9.2 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 8.5 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 7.6 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 6.6 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.4 mm²/s |
- |
DIN 17230 Grade 100CrMnMo8 annealed to achieve spheroidized carbides (+AC) chemical
| Property |
Value |
| Carbon |
Carbon of 0.9 - 1.05 % |
| Chromium |
Chromium of 1.8 - 2.05 % |
| Copper |
Copper of 0.3 % |
| Manganese |
Manganese of 0.8 - 1.1 % |
| Molybdenum |
Molybdenum of 0.5 - 0.6 % |
| Nickel |
Nickel of 0.3 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.4 - 0.6 % |
| Sulfur |
Sulfur of 0.025 % |
DIN 17230 Grade 100CrMnMo8 annealed to achieve spheroidized carbides (+AC) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 3.09E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 3.54E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 4.18E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 5.05E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 6.09E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 7.27E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.67E-7 Ω·m |
DIN 17230 Grade 100CrMnMo8 annealed to achieve spheroidized carbides (+AC) 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 |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Chromium Steel |
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