P355QH boiler quality plate
P355QH steel boiler plate is a kind of high-temperature pressure vessel steel plate specified in European standard EN 10028-6.P355QH pressure vessel plate has high strength and high temperature resistance, which is suitable for manufacturing high-temperature pressure vessels and boilers and other equipment.
The P355QH pressure vessel steel plate we offer can be customised in size, cut, welded, punched and other processing services according to your end-use requirements for P355QH pressure vessel plate material products.
pressure vessel plate material 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 | ≤0.015 | ≤0.5 | ≤0.3 | ≤0.25 | ≤0.3 | ≤0.05 | ≤0.06 | ≤0.03 | ≤0.015 | ≤0.05 | ≤0.005 |
vessel steel plate mechanical property
| Grade | Delivery state | Thickness mm | Mechanical properties | |
| P355QH | quenching and tempering | <5 | ReH(MPa) | ≥355 |
| Rm(MPa) | 490～630 | |||
| A(%) | ≥22 | |||
| P355QH | 5~50 | ReH(MPa) | ≥355 | |
| Rm(MPa) | 490～630 | |||
| A(%) | ≥22 | |||
| Impact temperature ℃ | -20 | |||
| Akv(J) | ≥27 | |||
| P355QH | >50~100 | ReH(MPa) | ≥335 | |
| Rm(MPa) | 490～630 | |||
| A(%) | ≥22 | |||
| Impact temperature ℃ | -20 | |||
| Akv(J) | ≥27 | |||
| P355QH | >100~150 | ReH(MPa) | ≥315 | |
| Rm(MPa) | 450～590 | |||
| A(%) | ≥22 | |||
| Impact temperature ℃ | -20 | |||
| Akv(J) | ≥27 | |||
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We have excellent after-sales service. If you have any questions about P355QH boiler quality plate, you can contact us and we will reply you within two hours.
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