EN 10277-3 Grade 38SMn28 cold drawn and quenched and tempered (+C+QT)
EN 10277-3 Grade 38SMn28 cold drawn and quenched and tempered (+C+QT) introduction
The free cutting case hardening steel 38SMn28 is used for production of turned parts of higher strength demands. As a bright steel product it is used in the form of bars, bright, straight, in various conditions (see DIN EN 10277 : 1999-10).
Equivalent material: ISO 38SMn28, DIN 1.0760, DIN 38SMn28, AFNOR 38SMn28, BS 38SMn28, JIS SUM42, EN 1.0760, GOST A40G, GB/T L20409, GB/T Y40Mn
EN 10277-3 Grade 38SMn28 cold drawn and quenched and tempered (+C+QT) general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Medium Carbon Steel |
EN 10277-3 Grade 38SMn28 cold drawn and quenched and tempered (+C+QT) thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
Typical for Medium Carbon Steel |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1380 - 1514 °C |
Typical for Medium Carbon Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 470 - 520 J/(kg·K) |
Typical for Medium Carbon Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 21 - 52 W/(m·K) |
Typical for Medium Carbon Steel |
EN 10277-3 Grade 38SMn28 cold drawn and quenched and tempered (+C+QT) chemical
| Property |
Value |
| Carbon |
Carbon of 0.35 - 0.4 % |
| Manganese |
Manganese of 1.2 - 1.5 % |
| Phosphorus |
Phosphorus of 0.06 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.24 - 0.33 % |
EN 10277-3 Grade 38SMn28 cold drawn and quenched and tempered (+C+QT) electrical
| Property |
Temperature |
Value |
Comment |
| Electrical resistivity |
23.0 °C |
Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m |
Typical for Carbon Steel |
EN 10277-3 Grade 38SMn28 cold drawn and quenched and tempered (+C+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Medium Carbon Steel |
| Elongation |
20.0 °C |
Elongation of 15 - 16 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Medium Carbon Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 75 - 80 GPa |
Typical for Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 630 - 850 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 380 - 420 MPa |
- |
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