DIN 17221 Grade 38Si7 annealed to achieve spheroidized carbides (+AC)
DIN 17221 Grade 38Si7 annealed to achieve spheroidized carbides (+AC) introduction
The steel 38 Si 7 is used for spring rings, spring plates, thread lockers and clamping tools.
Equivalent material: DIN 1.5023, EN 38Si7, EN 1.5023
DIN 17221 Grade 38Si7 annealed to achieve spheroidized carbides (+AC) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
DIN 17221 Grade 38Si7 annealed to achieve spheroidized carbides (+AC) chemical
| Property |
Value |
| Carbon |
Carbon of 0.35 - 0.42 % |
| Manganese |
Manganese of 0.5 - 0.8 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 1.5 - 1.8 % |
| Sulfur |
Sulfur of 0.03 % |
DIN 17221 Grade 38Si7 annealed to achieve spheroidized carbides (+AC) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
20.0 °C |
Elastic modulus of 210 GPa |
- |
| - |
100.0 °C |
Elastic modulus of 206 GPa |
- |
| - |
200.0 °C |
Elastic modulus of 195 GPa |
- |
| - |
300.0 °C |
Elastic modulus of 185 GPa |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Steel |
| Shear modulus |
20.0 °C |
Shear modulus of 80 GPa |
- |
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