P355Q Pressure vessel Steel
P355Q Boiler Quality Steel Plate Products Description
P355Q vessel plate is a European standard vessel plate, mainly used for manufacturing pressure equipment. In P355Q boiler plate, "P" stands for pressure vessel steel plate, "355" means the minimum yield strength is 355MPa, and "Q" stands for the delivery state of quenching and tempering.
P355Q pressure vessel steel has high strength, good low-temperature impact toughness and excellent welding performance, which is conducive to welding connection in engineering. Strict chemical composition control in P355Q steel boiler plate can ensure the stability of steel plate performance.
P355Q boiler steel plate is suitable for manufacturing large spherical storage tanks, single-layer coil welding containers, multi-layer heat-sleeved coil welding containers, multi-layer wrapped containers and other second and third category pressure vessels, as well as low-temperature pressure vessels, and is widely used in petroleum, chemical, power and other industries.
P355Q Pressure Vessel Steel Product Details
Chemical composition of P355Q pressure vessel quality steel
| C | Si | Mn | P | S | N | B | Cr | Cu | Mo | Nb | Ni | Ti | V |
| ≤0.16 | ≤0.4 | ≤1.5 | ≤0.025 | ≤0.01 | ≤0.015 | ≤0.005 | ≤0.3 | ≤0.3 | ≤0.25 | ≤0.05 | ≤0.5 | ≤0.03 | ≤0.06 |
Mechanical properties of P355Q boiler quality plate
| Grade | Thickness (mm) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation A(％) |
| P355Q | ≤50 | ≥355 | 490-630 | ≥22 |
| 50-100 | ≥335 | 450-590 | ||
| 100-150 | ≥315 | 450-590 |
Impact properties of P355Q vessel plate
| Grade | Thickness (mm) | Impact energy KV/J | ||||
| Test temperature (℃) | ||||||
| -60 | -40 | -20 | 0 | 20 | ||
| P355Q | ≤150 | - | - | 27 | 40 | 60 |
P355Q Boiler Plate Steel Product Image
P355Q Boiler Steel Plate Product Inventory
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