P690Q High Quality Boiler Steel Plate
P690Q pressure vessel steel plate is a special alloy steel used for pressure equipment. The steel contains a small amount of manganese (Mn), silicon (Si), sulfur (S), phosphorus (P), oxygen (O), nitrogen (N) and hydrogen (H). P690Q pressure vessel plate has good ductility, toughness, cold bending performance and weldability.
GNEE steel is a professional exporter and steel distributor of P690Q vessel plate in China. We have more than 50,000 tons of P690Q boiler plate in stock every month. We provide rust removal, cutting, punching, bending, welding and other services. For P690Q vessel steel plate prices, please feel free to contact us by email or phone.
P690Q boiler steel plate chemical composition
| Element | Min | Max | Similar |
|---|---|---|---|
| V | - | 0.1200 | - |
| Ti | - | 0.0500 | - |
| Si | - | 0.8000 | - |
| S | - | 0.0150 | - |
| P | - | 0.0250 | - |
| Ni | - | 2.5000 | - |
| Nb | - | 0.0600 | - |
| N | - | 0.0150 | - |
| Mo | - | 0.7000 | - |
| Mn | 1.2000 | 1.7000 | - |
| Cu | - | 0.3000 | - |
| Cr | - | 1.5000 | - |
| C | - | 0.2000 | - |
| Al | 0.0200 | - | - |
| Zr | - | 0.1500 | - |
| Nb | - | 0.0600 | - |
| Mn | - | 1.7000 | - |
| Cu | - | 0.3000 | - |
| B | - | 0.0050 | - |
P690Q pressure vessel quality steel mechanical property
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 158 (≥) | 932 (≥) | 22 | 12 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 224 |
P690Q boiler quality plates physical property
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.14 | - | |||
| 197 | 998 | - | 13.3 | 443 | - | ||
| 431 | - | 44 | 33.2 | 211 | 122 |
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