EN 10222-4 Grade P355QH1 quenched and tempered (+QT)
EN 10222-4 Grade P355QH1 quenched and tempered (+QT) introduction
Steel P355QH is a tempered weldable fine grained steel with a yield strength of max. 355 N/mm².
Application: pressure vessel construction, apparatus engineering, general machine and toolbuilding.
Equivalent material: DIN P355QH1, ISO PL35, ISO PLH35, DIN 1.0571, AFNOR P355QH1, BS P355QH1, EN 1.0571, GB/T L13455, GB/T Q345q-E, GB/T Q345HD
EN 10222-4 Grade P355QH1 quenched and tempered (+QT) general
| Property |
Temperature |
Value |
| Density |
20.0 °C |
Density of 7.83 g/cm³ |
EN 10222-4 Grade P355QH1 quenched and tempered (+QT) 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 |
-100.0 °C |
Thermal conductivity of 37.6 W/(m·K) |
- |
| - |
20.0 °C |
Thermal conductivity of 42.2 W/(m·K) |
- |
| - |
100.0 °C |
Thermal conductivity of 43.2 W/(m·K) |
- |
| - |
200.0 °C |
Thermal conductivity of 42.9 W/(m·K) |
- |
| - |
300.0 °C |
Thermal conductivity of 41.2 W/(m·K) |
- |
| - |
400.0 °C |
Thermal conductivity of 39.1 W/(m·K) |
- |
| - |
500.0 °C |
Thermal conductivity of 36.6 W/(m·K) |
- |
| - |
600.0 °C |
Thermal conductivity of 34.1 W/(m·K) |
- |
| Thermal diffusivity |
-100.0 °C |
Thermal diffusivity of 12.9 mm²/s |
- |
| - |
20.0 °C |
Thermal diffusivity of 11.7 mm²/s |
- |
| - |
100.0 °C |
Thermal diffusivity of 11.2 mm²/s |
- |
| - |
200.0 °C |
Thermal diffusivity of 10.3 mm²/s |
- |
| - |
300.0 °C |
Thermal diffusivity of 9.4 mm²/s |
- |
| - |
400.0 °C |
Thermal diffusivity of 8.3 mm²/s |
- |
| - |
500.0 °C |
Thermal diffusivity of 7.1 mm²/s |
- |
| - |
600.0 °C |
Thermal diffusivity of 5.7 mm²/s |
- |
EN 10222-4 Grade P355QH1 quenched and tempered (+QT) chemical
| Property |
Value |
| Aluminium |
Aluminium of 0.02 - 0.06 % |
| Carbon |
Carbon of 0.18 - 0.2 % |
| Chromium |
Chromium of 0.3 % |
| Copper |
Copper of 0.2 - 0.3 % |
| Manganese |
Manganese of 0.9 - 1.65 % |
| Molybdenum |
Molybdenum of 0.08 - 0.25 % |
| Nickel |
Nickel of 0.3 - 0.5 % |
| Niobium |
Niobium of 0.05 % |
| Nitrogen |
Nitrogen of 0.02 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.1 - 0.5 % |
| Sulfur |
Sulfur of 0.01 - 0.015 % |
| Vanadium |
Vanadium of 0.1 % |
EN 10222-4 Grade P355QH1 quenched and tempered (+QT) magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
EN 10222-4 Grade P355QH1 quenched and tempered (+QT) electrical
| Property |
Temperature |
Value |
| Electrical resistivity |
-100.0 °C |
Electrical resistivity of 1.82E-7 Ω·m |
| - |
20.0 °C |
Electrical resistivity of 2.47E-7 Ω·m |
| - |
100.0 °C |
Electrical resistivity of 2.96E-7 Ω·m |
| - |
200.0 °C |
Electrical resistivity of 3.68E-7 Ω·m |
| - |
300.0 °C |
Electrical resistivity of 4.55E-7 Ω·m |
| - |
400.0 °C |
Electrical resistivity of 5.56E-7 Ω·m |
| - |
500.0 °C |
Electrical resistivity of 6.75E-7 Ω·m |
| - |
600.0 °C |
Electrical resistivity of 8.13E-7 Ω·m |
EN 10222-4 Grade P355QH1 quenched and tempered (+QT) 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 19 - 23 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Low Carbon Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 82 GPa |
Typical for Low Carbon Steel |
| Tensile strength |
20.0 °C |
Tensile strength of 470 - 630 MPa |
- |
| Yield strength |
20.0 °C |
Yield strength of 275 - 355 MPa |
- |
| - |
200.0 °C |
Yield strength of 255 MPa |
- |
| - |
250.0 °C |
Yield strength of 235 MPa |
- |
| - |
300.0 °C |
Yield strength of 216 MPa |
- |
| - |
350.0 °C |
Yield strength of 196 MPa |
- |
| - |
400.0 °C |
Yield strength of 167 MPa |
- |
| Yield strength Rp0.2 |
20.0 °C |
Yield strength Rp0.2 of 265 - 305 MPa |
- |
| - |
50.0 °C |
Yield strength Rp0.2 of 266 - 305 MPa |
- |
| - |
100.0 °C |
Yield strength Rp0.2 of 235 - 304 MPa |
- |
| - |
150.0 °C |
Yield strength Rp0.2 of 215 - 284 MPa |
- |
| - |
200.0 °C |
Yield strength Rp0.2 of 197 - 255 MPa |
- |
| - |
250.0 °C |
Yield strength Rp0.2 of 179 - 235 MPa |
- |
| - |
300.0 °C |
Yield strength Rp0.2 of 160 - 216 MPa |
- |
| - |
350.0 °C |
Yield strength Rp0.2 of 142 - 196 MPa |
- |
| - |
400.0 °C |
Yield strength Rp0.2 of 117 - 179 MPa |
- |
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