EN 10269 Grade 20Mn5 normalized or normalized formed (+N)
EN 10269 Grade 20Mn5 normalized or normalized formed (+N) introduction
High-temperature heat-treated steel, application for larger forged parts in machine engineering, for steam boilers and pressure vessel.
Further application for mounting elements at increased temperatures.
Equivalent material: AFNOR 20M5, BS 120M19, ISO F18, JIS SMnC420, UNE F.1515-20Mn6, DIN 20Mn5, AS 1022, AISI 1522, SAE 1522, UNS G15220, IS 18C10H, UNS G10220, DIN 1.1133, AFNOR 20Mn5, BS 20Mn5, AISI 1522H, SAE 1522H, JIS STKM19A, JIS 19A, EN 1.1133, GB 20MnG, GB U42203, GB/T 20MnG, GB/T U42203, ASTM 1522, UNS H15220
EN 10269 Grade 20Mn5 normalized or normalized formed (+N) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.82 - 7.85 g/cm³ |
EN 10269 Grade 20Mn5 normalized or normalized formed (+N) 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 1.39E-5 - 1.45E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 1.41E-5 - 1.49E-5 1/K |
- |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1480 - 1526 °C |
Typical for Low 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 39.6 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 41 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 41 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 39.9 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 38.1 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 35.9 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 33.6 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 11 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 10.6 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 9.9 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.1 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 6.9 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.7 mm²/s |
- |
EN 10269 Grade 20Mn5 normalized or normalized formed (+N) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.02 % |
| Carbon |
Carbon of 0.17 - 0.23 % |
| Chromium |
Chromium of 0.4 % |
| Manganese |
Manganese of 1 - 1.5 % |
| Molybdenum |
Molybdenum of 0.1 % |
| Nickel |
Nickel of 0.4 % |
| Phosphorus |
Phosphorus of 0.03 - 0.04 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.035 % |
EN 10269 Grade 20Mn5 normalized or normalized formed (+N) magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
EN 10269 Grade 20Mn5 normalized or normalized formed (+N) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 2.63E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 3.12E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.85E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.7E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.71E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.88E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.25E-7 Ω·m |
EN 10269 Grade 20Mn5 normalized or normalized formed (+N) 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 - 200 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 192 - 193 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 20 - 22 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Low Carbon Steel |
| Reduction of area |
20.0 °C |
Reduction of area of 55 % |
- |
| Shear modulus |
23.0 °C |
Shear modulus of 82 GPa |
Typical for Low Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 500 - 650 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 300 - 320 MPa |
- |
| - |
50.0 °C |
Yield strength Rp0.2 of 304 - 306 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 278 - 283 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 251 - 260 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 229 - 237 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 213 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 192 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 182 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 173 MPa |
- |
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