ISO 683-3 Grade 20MnCr5 normalized or normalized formed (+N)
ISO 683-3 Grade 20MnCr5 normalized or normalized formed (+N) introduction
Steel 20MnCr5 is compared to 16MnCr5 suitable for higher dimension parts of higher core strength and favorable ductility qualities in vehicle manufacturing and machine engineering (gears, joint parts, gear wheels, bolts).
Equivalent material: AS 5120, AS 5120H, GB 20CrMnH, GB A22205, EN 1.7147, IS 20Mn5Cr5(-S), ISO 20MnCr5, JIS SMnC420H, GOST 18ChG, GOST 18ХГ, KS SMnC420H, ASTM A434 Grade 5120, UNS G51200, SAE 5120, GB 20CrMn, GB A22202, GB 20CrMnAH, GB A22207, DIN 1.7147, DIN 20MnCr5, AFNOR 20MnCr5, BS 20MnCr5, AISI 5120H, AISI 4820, SAE 5120H, SAE 4820, JIS SMnC420RCH, JIS SMnCRCH, JIS 20MnCr5, JIS SMnC21H, GOST 18CHG, ASTM 5120, UNS H51200, UNS G48200
ISO 683-3 Grade 20MnCr5 normalized or normalized formed (+N) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
ISO 683-3 Grade 20MnCr5 normalized or normalized formed (+N) 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 45.9 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 46.4 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 45.6 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 43.5 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 40.9 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 38.2 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 35.5 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 12.7 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 12 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 11 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9.9 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.7 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.3 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 6 mm²/s |
- |
ISO 683-3 Grade 20MnCr5 normalized or normalized formed (+N) chemical
| Property |
Value |
| Carbon |
Carbon of 0.17 - 0.22 % |
| Chromium |
Chromium of 1 - 1.3 % |
| Copper |
Copper of 0.4 % |
| Manganese |
Manganese of 1.1 - 1.4 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.15 - 0.4 % |
| Sulfur |
Sulfur of 0.035 % |
ISO 683-3 Grade 20MnCr5 normalized or normalized formed (+N) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 2.27E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.76E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.46E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.31E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.32E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.48E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 7.81E-7 Ω·m |
ISO 683-3 Grade 20MnCr5 normalized or normalized formed (+N) mechanical
| Property |
Temperature |
Value |
| 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 |
20.0 °C |
Poisson's ratio of 0.28 [-] |
Build a solid foundation for success with our reliable and robust steel products.
-- Our promise
Similar or equivalent steel materials
Get a quote