P355QL1 Cylinder Steel Plate
P355QL1 pressure vessel steel plate is a weldable fine grain steel. P355QL1 vessel steel plate is commonly used in specialty alloys and pressure equipment due to its excellent plasticity, resistance, cold bending performance and welding performance.
The specifications, shapes and tolerances of P355QL1 boiler steel plates produced by GNEE meet the requirements of EN10028-1 2007+A1:2009. The boiler plates are usually delivered in quenched and tempered state, and the steel plates less than 40mm are delivered in shear or flame cutting.
P355QL1 vessel steel plate chemical composition
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Nb | V | Ti | N | Zr | B |
| ≤0.16 | ≤0.4 | ≤1.5 | ≤0.025 | ≤0.010 | ≤0.5 | ≤0.3 | ≤0.25 | ≤0.3 | ≤0.05 | ≤0.06 | ≤0.03 | ≤0.015 | ≤0.05 | ≤0.005 |
P355QL1 boiler 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) |
|---|---|---|---|---|---|---|
| 656 (≥) | 613 (≥) | 21 | 43 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 141 |
P355QL1 pressure vessel quality steel physical properties
| emperature (°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 |
|---|---|---|---|---|---|---|---|
| 33 | - | - | 0.34 | - | |||
| 674 | 235 | - | 32.3 | 422 | - | ||
| 463 | - | 34 | 14.2 | 113 | 411 |
P355QL1 boiler quality plates thermal properties
| Property | Value | Comment |
|---|---|---|
|
Coefficient of thermal expansion |
12.02 1/K |
Predicted Value |
|
Specific heat capacity |
449.7 J/(kg·K) |
Predicted Value |
|
Thermal conductivity |
37.01 W/(m·K) |
Predicted Value |
P355QL1 pVQ steel plate electrical properties
| Property | Value | Comment |
|---|---|---|
|
Electrical conductivity |
5 S/m |
Predicted Value |
|
Electrical resistivity |
37 Ω·m |
Predicted Value |
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