We supply optimised materials exceeding the standards to fulfil your orders:

  • Intermediate widths: 2.250 and 2.750 mm and overwidths: 3.250, 3.500 and 4.000 mm in P265GH, P295GH, P355GH, P275NH, P275NL2/NL1 and P355NL2/NH
  • Lengths up to 16.000 mm
  • 13CrMo4-5, 10CrMo9-10 and X12CrMo5 with notch impact test at -20 °C
  • Stock availability of 13CrMo4-5, 10CrMo9-10 and X12CrMo5, with the highest possible tempering temperatures
Pressure vessel steels (as per EN 10028-2/3)
QualitiesMaterial No.Thicknesses (mm)Widths (mm)Lengths (mm)Inspection certificates acc. to
DIN EN 10204
P265GH1.04253 – 2201.000 – 4.000to 16.0003.1
P295GH1.04816 – 1201.000 – 4.000to 16.0003.2 TüV, 3.1
P355GH1.04734 – 3501.500 – 4.000to 16.0003.2 TüV, 3.1
16Mo31.54151,5 – 2501.500 – 3.500to 16.0003.2 TüV, 3.1
13CrMo4-51.73354 – 2501.500 – 3.000to 12.0003.2 TüV
10CrMo9-101.73804 – 1001.500 – 3000to 12.0003.2 TüV
X12CrMo51.73626 – 1002.000 – 3.000to 12.0003.2 TüV
P275NH1.04874 – 1502.000 – 4.000to 16.0003.1
P275NL2/NL11.1104/1.04884 – 1502.000 – 4.000to 16.0003.1
P355NL2/NH1.1106/1.05663 – 3501.500 – 4.000to 16.0003.2 TüV, 3.1
P460NL2/NH1.8918/1.89355 – 4002.000 – 3.000to 16.0003.2 TüV

Heavy plate and strips for pressure vessel and boilermaking

UnionStahl stocks a large number of pressure vessel steel qualities and is therefore an excellent partner for the production of pressure vessels, heat exchangers, transport containers and floors.
Customers for the heavy plates and strips we stock for pressure vessel and boilermaking come from the petrochemical, chemical and pharmaceutical industries, the food industry, waste management and power station engineering, and the energy and environment field.
The demands on the properties of the employed pressure vessel steels are high. Pressure vessel steel, for example, must withstand high pressures. In addition, the steels must be suitable for use with high or low temperatures, depending on application and location. A further required property is good weldability.
If the application demands corrosion resistance, UnionStahl is your strong partner. We are specialised in these steels and stock suitable sour gas-resistance steels.
UnionStahl stocks materials from renowned European manufacturers approved for deployment by major energy, and oil and gas sector players.

A broad range of pressure vessel steels

The pressure vessel and boilermaking steels supplied by us correspond to international standards and regulations.
In our warehouse you will find pressure vessel steel – non-alloy, alloy, high-temperature – compliant with DIN EN 10028-2 and weldable, fine grain structural steels – normalised – compliant with DIN EN 10028-3.
UnionStahl stocks heavy plate for pressure vessel and boilermaking in as many dimensions as possible in order to optimally service all our customers’ demands Widths up to 4,000 mm and lengths up to 16,000 mm – these unusual sizes are not uncommon.
Our stock of intermediate thicknesses facilitates weight savings in the finished vessels.
Our services include subsequent testing processes, such as PWHT, hardness tests, tensile tests and notch impact tests, allowing us to meet a wide range of different and extensive customer specifications. We offer support in compiling your specifications and advise you in implementing your projects.