EN 10277-2 Grade St 50-2 cold drawn or turned and normalized
EN 10277-2 Grade St 50-2 cold drawn or turned and normalized introduction
St 50-2 is a structural steel for wear and strength loaded parts (bolts, shafts, spindles, keys).
Equivalent material: NBN A490-2, AFNOR A50-2, BS 50B, GOST S285, ISO Fe490, UNI Fe490, JIS SS5D, ÖNORM St490, SS 2172-00, UNE A50-2, ASTM 50, DIN E295, DIN 1.0050, AFNOR E295, BS E295, UNI FE50, JIS SM50YA, JIS SS500, JIS SBPDN930/1080, JIS SBPDN1080/1230, JIS SBPDL1080/1230, JIS SBPDN1275/1420, JIS SBPDL1275/1420, EN E295, EN 1.0050, GOST St5ps, GOST St5sp, GB/T Q275, GB/T U12752
EN 10277-2 Grade St 50-2 cold drawn or turned and normalized general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
EN 10277-2 Grade St 50-2 cold drawn or turned and normalized 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 1.25E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.3E-5 1/K |
- |
| - |
300.0 °C |
Coefficient of thermal expansion of 1.36E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.41E-5 1/K |
- |
| - |
500.0 °C |
Coefficient of thermal expansion of 1.45E-5 1/K |
- |
| - |
600.0 °C |
Coefficient of thermal expansion of 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 53.4 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 52.9 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 50.3 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 46.7 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 43.3 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 39.8 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 36.7 W/(m·K) |
- |
| Thermal diffusivity |
20.0 °C |
Thermal diffusivity of 14.8 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 13.6 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 12.1 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 10.6 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 9.2 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.7 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 6.2 mm²/s |
- |
EN 10277-2 Grade St 50-2 cold drawn or turned and normalized chemical
| Property |
Value |
| Carbon |
Carbon of 0.3 % |
| Phosphorus |
Phosphorus of 0.05 % |
| Sulfur |
Sulfur of 0.05 % |
EN 10277-2 Grade St 50-2 cold drawn or turned and normalized magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
EN 10277-2 Grade St 50-2 cold drawn or turned and normalized electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.95E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.42E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.14E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.02E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.02E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.21E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 7.55E-7 Ω·m |
EN 10277-2 Grade St 50-2 cold drawn or turned and normalized 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 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 |
- |
| Elongation |
20.0 °C |
Elongation of 18 - 20 % |
- |
| Poisson's ratio |
20.0 °C |
Poisson's ratio of 0.28 [-] |
- |
| Shear modulus |
23.0 °C |
Shear modulus of 82 GPa |
Typical for Low Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 470 - 610 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 265 - 295 MPa |
- |
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