EN10028-3 P355NH Pressure Vessel Steel Plates

Pressure Vessel made with Dillinger EN10028-3 P355NH Steel Plate

Pressure Vessel made with Dillinger EN10028-3 P355NH Steel Plate

P355NH is a pressure vessel steel to EN10028-3 that is used for high temperatures. It is normalised and fine grained  with excellent weldability. Like other pressure vessel steel grades we carry large quantities in stock for immediate delivery.

The majority of our P355NH boiler plate is from Dillinger Hutte and thus is of exceptionally high quality and able to meet the most demanding requirements.

P355NH steel plate is typically used in boiler and pressure vessels in a variety of industrial uses. Many use cases are found in the oil and gas and petrochemical industries

P355NH Availability

We have P355NH plates available from 6mm – 200mm, though even thicker plates may be available at the time of ordering. We focus on ensuring that we have a large availability of all plate thicknesses and dimensions so that all normal requirements can be met on an ex-stock basis. We also aim to be able to meet requirements for larger quantities that would normally be ordered from the mill in order to help customers in the oil and gas industries to accelerate deliveries times of their projects.

P355NH Ex-Stock

  • Thickness: 6 mm  to 200 mm
  • Width: Up to 3 metres wide
  • Length: Up to 12 metres
  • Certification: EN10204 3.1/3.2
  • Steel Number: 1.0565

You can check for P355NH plate thicknesses and P355NH steel dimensions normally available for 2m, 2.5m and 3m wide and up to 12m long.


All P355NH plates come with a material test certificate to EN10204 3.1 or 3.2

For customers in Europe P355NH plate can be ordered direct from Dillinger or from stock from AncoferWaldram. The EN 10028-2 standard can be purchased from the BSI


P355 NH Pressure Vessel Steel Chemical Composition

Steel GradeCC (Min)SiMnMn (Min)PSAlNCrCuMoNbNiTiVNb+Ti+V
P355 NH0.
This table provides the main features of the chemical composition of different grades of P355NH boiler plate steel as required by EN10028-3:2009. It is not complete as we have not included many of the minor use cases. These may have a major impact in your application so please use this for reference purposes only and refer to your original and up to date copy of the relevant standard


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