SEW 555 Grade 22CrMoNiWV8-8 quenched and tempered (+QT)
SEW 555 Grade 22CrMoNiWV8-8 quenched and tempered (+QT) introduction
The high temperature alloy steel 22CrMoNiWV8-8 is used for larger preshaped components in the quenched and tempered condition in turbine and generator installations, in particular as shafts and discs.
The steel is weldable if the relevant measures required are observed.
Equivalent material: DIN 1.6945, EN 22CrMoNiWV8-8, EN 1.6945
SEW 555 Grade 22CrMoNiWV8-8 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
SEW 555 Grade 22CrMoNiWV8-8 quenched and tempered (+QT) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.01 % |
| Carbon |
Carbon of 0.2 - 0.24 % |
| Chromium |
Chromium of 2 - 2.2 % |
| Manganese |
Manganese of 0.6 - 0.8 % |
| Molybdenum |
Molybdenum of 0.8 - 0.9 % |
| Nickel |
Nickel of 0.7 - 0.8 % |
| Phosphorus |
Phosphorus of 0.01 % |
| Silicon |
Silicon of 0.1 % |
| Sulfur |
Sulfur of 7E-3 % |
| Tungsten |
Tungsten of 0.6 - 0.7 % |
| Vanadium |
Vanadium of 0.25 - 0.35 % |
SEW 555 Grade 22CrMoNiWV8-8 quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 190 - 210 GPa |
Typical for Steel |
| Elongation, transverse |
20.0 °C |
Elongation, transverse of 12 - 13 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Steel |
| Reduction of area, transverse |
20.0 °C |
Reduction of area, transverse of 40 % |
- |
| Tensile strength, transverse |
20.0 °C |
Tensile strength, transverse of 650 - 930 MPa |
- |
| Yield strength Rp0.2 |
100.0 °C |
Yield strength Rp0.2 of 585 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 560 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 550 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 535 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 520 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 500 MPa |
- |
| - |
450.0 °C |
Yield strength Rp0.2 of 480 MPa |
- |
| - |
500.0 °C |
Yield strength Rp0.2 of 440 MPa |
- |
| Yield strength Rp0.2, transverse |
20.0 °C |
Yield strength Rp0.2, transverse of 560 - 700 MPa |
- |
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