EN 10083-3 Grade 20MnB5 quenched and tempered (+QT)
EN 10083-3 Grade 20MnB5 quenched and tempered (+QT) introduction
Boron-alloyed tempering steel for general machine engineering and vehicle manufacturing.
The steel is shearable in the non-treated condition.
Equivalent material: EN 1.5530, IS 20MnB5, DIN 21MnB5, DIN 1.5530, DIN 20MnB5, UNI 20MnB5, UNI 21B3, UNE 20MnB5, UNE 21B3, BS 174H20, SAE 15B21, JIS SWRCHB620, JIS SWCHB620
EN 10083-3 Grade 20MnB5 quenched and tempered (+QT) general
| Property | Value | Comment |
|---|---|---|
| Density | Density of 7.8 - 7.9 g/cm³ | Typical for Low Carbon Steel |
EN 10083-3 Grade 20MnB5 quenched and tempered (+QT) thermal
| Property | Value | Comment |
|---|---|---|
| Coefficient of thermal expansion | Coefficient of thermal expansion of 1.32e-05 - 1.38e-05 1/K | Typical for Low Carbon Steel |
| Max service temperature | Max service temperature of 328.7 °C | Predicted Value, Long |
| - | 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 | Specific heat capacity of 465 J/(kg·K) | Typical for Low Carbon Steel |
| Thermal conductivity | Thermal conductivity of 25 - 93 W/(m·K) | Typical for Low Carbon Steel |
EN 10083-3 Grade 20MnB5 quenched and tempered (+QT) chemical
| Property | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|
| Boron | Boron of 0.0008 - 0.005 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat |
| - | Boron of 0.001 - 0.005 % | quenched and tempered (+QT) | EN 10083-3, ISO 683-2 | Bar, Forging, Sheet, Strip, Flat |
| Carbon | Carbon of 0.17 - 0.23 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat |
| Copper | Copper of 0.4 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat |
| Manganese | Manganese of 1.1 - 1.4 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat |
| Phosphorus | Phosphorus of 0.025 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat |
| Silicon | Silicon of 0.4 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat |
| Sulfur | Sulfur of 0.035 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat |
EN 10083-3 Grade 20MnB5 quenched and tempered (+QT) magnetic
| Property | Value | Comment |
|---|---|---|
| Curie temperature | Curie temperature of 770 °C | Typical for Low Carbon Steel |
EN 10083-3 Grade 20MnB5 quenched and tempered (+QT) electrical
| Property | Value | Comment |
|---|---|---|
| Electrical conductivity | Electrical conductivity of 7 S/m | Predicted Value |
| Electrical resistivity | Electrical resistivity of 1.43e-07 - 1.74e-07 Ω·m | Typical for Carbon Steel |
EN 10083-3 Grade 20MnB5 quenched and tempered (+QT) mechanical
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
| Elastic modulus | - | Elastic modulus of 200 - 215 GPa | - | - | - | Typical for Low Carbon Steel |
| Elongation | - | Elongation of 10.2 % | - | - | - | Predicted Value, A200 |
| - | - | Elongation of 11.2 % | - | - | - | Predicted Value, A80 |
| - | - | Elongation of 12.5 % | - | - | - | Predicted Value, Transverse |
| - | - | Elongation of 16.6 % | - | - | - | Predicted Value, A5 |
| - | - | Elongation of 16.8 % | - | - | - | Predicted Value, A50 |
| - | - | Elongation of 19.1 % | - | - | - | Predicted Value, A80 Transverse |
| - | 20 °C | Elongation of 14 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| - | 20 °C | Elongation of 15 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| Hardness, Brinell | - | Hardness, Brinell of 252 [-] | - | - | - | Predicted Value, Transverse |
| Poisson's ratio | - | Poisson's ratio of 0.29 [-] | - | - | - | Typical for Low Carbon Steel |
| Reduction of area | - | Reduction of area of 43.0 % | - | - | - | Predicted Value, Transverse |
| - | 20 °C | Reduction of area of 55 % | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| Shear modulus | - | Shear modulus of 82 GPa | - | - | - | Typical for Low Carbon Steel |
| Shear strength | - | Shear strength of 502.3 MPa | - | - | - | Predicted Value |
| Tensile strength | 20 °C | Tensile strength of 750 - 1050 MPa | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| - | 20 °C | Tensile strength of 750 - 900 MPa | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| - | 20 °C | Tensile strength of 900 - 1050 MPa | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| - | 20 °C | Tensile strength of 900 MPa | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| Yield strength | - | Yield strength of 305.9 MPa | - | - | - | Predicted Value, RP05 |
| - | - | Yield strength of 320.1 MPa | - | - | - | Predicted Value, RP1 |
| - | - | Yield strength of 325.6 MPa | - | - | - | Predicted Value, RP1 Transverse |
| - | - | Yield strength of 457.7 MPa | - | - | - | Predicted Value, RP02 Transverse |
| - | - | Yield strength of 466.6 MPa | - | - | - | Predicted Value, Transverse |
| - | - | Yield strength of 640.2 MPa | - | - | - | Predicted Value, RP02 |
| - | - | Yield strength of 709.8 MPa | - | - | - | Predicted Value, RP002 |
| - | 20 °C | Yield strength of 600 MPa | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
| - | 20 °C | Yield strength of 700 MPa | quenched and tempered (+QT) | ISO 683-2, EN 10083-3 | Bar, Forging, Sheet, Strip, Flat | - |
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