EN 10273 Grade P355QH quenched and tempered (+QT)
EN 10273 Grade P355QH quenched and tempered (+QT) introduction
The steel P355QH is a high temperature steel suitable for welding.
Application: use in pressure vessel engineering.
Equivalent material: DIN 1.8867, EN 1.8867
EN 10273 Grade P355QH quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.85 g/cm³ |
EN 10273 Grade P355QH quenched and tempered (+QT) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.018 % |
| Boron |
Boron of 5E-3 % |
| Carbon |
Carbon of 0.16 % |
| Chromium |
Chromium of 0.3 % |
| Copper |
Copper of 0.3 % |
| Manganese |
Manganese of 1.5 % |
| Molybdenum |
Molybdenum of 0.25 % |
| Nickel |
Nickel of 0.5 % |
| Niobium |
Niobium of 0.05 % |
| Nitrogen |
Nitrogen of 0.02 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.4 % |
| Sulfur |
Sulfur of 0.01 - 0.015 % |
| Titanium |
Titanium of 0.03 % |
| Vanadium |
Vanadium of 0.06 % |
| Zirconium |
Zirconium of 0.05 % |
EN 10273 Grade P355QH quenched and tempered (+QT) mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 190 - 210 GPa |
Typical for Steel |
| Elongation |
20.0 °C |
Elongation of 22 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.3 [-] |
Typical for Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 450 - 630 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 315 - 355 MPa |
- |
| Yield strength Rp0.2 |
50.0 °C |
Yield strength Rp0.2 of 280 - 340 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 250 - 310 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 225 - 285 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 200 - 260 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 175 - 235 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 155 - 215 MPa |
- |
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