DIN 17243 Grade 20Mn5 normalized or normalized formed (+N)
DIN 17243 Grade 20Mn5 normalized or normalized formed (+N) introduction
High temperature quenched and tempered steel.
Application:
larger forgings for mechanical engineering, steam vessels, pressure vessels
Equivalent material: AFNOR 20M5, BS 120M19, ISO F18, JIS SMnC420, UNE F.1515-20Mn6, DIN 1.0436, DIN P305GH, AFNOR P305GH, BS P305GH, EN P305GH, EN 1.0436, ASTM Grade WPL6, UNS K12447, UNS K02007, DIN 1.1133, AFNOR 20Mn5, BS 20Mn5, AISI 1522H, AISI 1522, SAE 1522H, SAE 1522, JIS STKM19A, JIS 19A, EN 20Mn5, EN 1.1133, GB 20MnG, GB U42203, GB/T 20MnG, GB/T U42203, ASTM 1522, UNS H15220, UNS G15220
DIN 17243 Grade 20Mn5 normalized or normalized formed (+N) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.82 g/cm³ |
DIN 17243 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 |
- |
DIN 17243 Grade 20Mn5 normalized or normalized formed (+N) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.015 - 0.05 % |
| Carbon |
Carbon of 0.17 - 0.23 % |
| Chromium |
Chromium of 0.3 % |
| Manganese |
Manganese of 1 - 1.5 % |
| Phosphorus |
Phosphorus of 0.04 % |
| Silicon |
Silicon of 0.6 % |
| Sulfur |
Sulfur of 0.03 % |
DIN 17243 Grade 20Mn5 normalized or normalized formed (+N) magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
DIN 17243 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 |
DIN 17243 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 |
| Shear modulus |
23.0 °C |
Shear modulus of 82 GPa |
Typical for Low Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 490 - 610 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 260 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 245 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 225 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 210 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 190 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 170 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 150 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 130 MPa |
- |
| - |
450.0 °C |
Yield strength Rp0.2 of 105 MPa |
- |
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