EN 10277-3 Grade 46SPb20 cold drawn
EN 10277-3 Grade 46SPb20 cold drawn introduction
The free cutting case hardening steel 46SPb20 is used for bulk parts of higher strength, especially for lower ductility demands in transversal direction compared to other C-steels (e.g. C45). Machinability enhancement is achieved by Pb-content. Application in car industry, apparatus, equipment and machine engineering (e.g. screws, nuts, small-size parts). 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: DIN 45SPb20, ISO 46SPb20, DIN 1.0757, DIN 46SPb20, AFNOR 46SPb20, BS 46SPb20, UNI 46SPb20, AISI 41L50, SAE 41L50, EN 1.0757
EN 10277-3 Grade 46SPb20 cold drawn general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
EN 10277-3 Grade 46SPb20 cold drawn thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
100.0 °C |
Coefficient of thermal expansion of 1.1E-5 1/K |
- |
| - |
200.0 °C |
Coefficient of thermal expansion of 1.18E-5 1/K |
- |
| - |
400.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
- |
| 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 |
100.0 °C |
Specific heat capacity of 490 J/(kg·K) |
- |
| - |
200.0 °C |
Specific heat capacity of 530 J/(kg·K) |
- |
| - |
400.0 °C |
Specific heat capacity of 600 J/(kg·K) |
- |
| Thermal conductivity |
20.0 °C |
Thermal conductivity of 49 W/(m·K) |
- |
EN 10277-3 Grade 46SPb20 cold drawn chemical
| Property |
Value |
| Carbon |
Carbon of 0.42 - 0.5 % |
| Lead |
Lead of 0.15 - 0.35 % |
| Manganese |
Manganese of 0.7 - 1.1 % |
| Phosphorus |
Phosphorus of 0.06 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.15 - 0.25 % |
EN 10277-3 Grade 46SPb20 cold drawn electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
20.0 °C |
Electrical resistivity of 1.2E-7 Ω·m |
EN 10277-3 Grade 46SPb20 cold drawn mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 210 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 193 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 185 GPa |
- |
| - |
400.0 °C |
Elastic modulus of 175 GPa |
- |
| Elongation |
20.0 °C |
Elongation of 5 - 8 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Medium Carbon Steel |
| Shear modulus |
20.0 °C |
Shear modulus of 81 GPa |
- |
| Tensile strength |
20.0 °C |
Tensile strength of 580 - 980 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 340 - 570 MPa |
- |
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