Properties and use of fine-grained
steel boiler plates according to 
EN 10028-3

Boiler plates made of fine-grained stainless steel are distinguished by excellent resistance to high pressure, temperature and corrosion. They are characterized by excellent weldability and low carbon content. Boiler plates made of fine-grained steel, whose technical requirements are specified by regulation EN 10028-3, have guaranteed mechanical properties at low (−50 ℃) and high (400 ℃) temperatures.

Their properties guarantee use even in demanding applications permanently exposed to high temperatures and pressure. Suitable for extremely stressed pressure vessels and equipment. You will use them on boilers, reactors, gas reservoirs and transport containers. They are also suitable for production of condensers, compressors, turbines and where handling of coolants is required. Boiler plates can be used in the chemical, food, pharmaceutical and petrochemical industries or in the field of energy, waste management or the environment.

Choose from a wide range of sizes.

We supply sheets in the following dimensions:

  • length: max. 18,000 mm,
  • width: 1000-3200mm,
  • thickness: 5-100 mm,
  • weight: max. 12,500 kg.

The stated dimensions are only approximate. The resulting appearance depends on the combination of individual parameters and material specification. Upon agreement, we are able to produce sheets up to a length of 21,000 mm and a thickness of 200 mm.

Equivalent marking of steels

EN 10028-3 DIN 17102
Quality P275NH WStE 285
Quality P275NL1 TStE 285
Quality P275NL2 EStE 285
Quality P355N StE 355
Quality P355NH WStE 355
Quality P355NL1 TStE 355
Quality P355NL2 EStE 355
Quality P460NH WStE 460
Quality P460NL1 TStE 460
Quality P460NL2 EStE 460

Basic characteristics of individual qualities

Steel brand Minimum yield strength
ReH1) [MPa]
Minimum yield strength 0.2%
Rp022) [MPa]
Strength limit
Rm [MPa]
Minimum ductility
[%]
Minimum impact work
KV [°C/J]
CEV max.3) Thickness4)
[mm]
P275NH/1.0487 275 179 390–510 24 -20/30 0.40 5-80
P275NL1/1.0488 275 179 390–510 24 -40/27 0.40 5-80
P275NL2/1.1104 275 179 390–510 24 -50/27 0.40 5-80
P355N/1.0562 355 - 490-630 22 -20/30 0.43 5-80
P355NH/1.0565 355 232 490-630 22 -20/30 0.43 5-80
P355NL1/1.0566 355 232 490-630 22 -40/27 0.43 5-80
P355NL2/1.1106 355 232 490-630 22 -50/27 0.43 5-80
P460NH/1.8935 460 300 570-720 17 -20/30 0.53 6-80
P460NL1/1.8915 460 300 570-720 17 -40/27 0.53 6-80
P460NL2/1.8918 460 300 570-720 17 -50/27 0.53 6-80
  1. Valid for thicknesses up to 16 mm, larger thicknesses according to the standard
  2. Testing by agreement, values ​​apply to a temperature of 300 °C and a thickness of up to 16 mm, other temperatures or greater thickness according to the standard
  3. Maximum carbon equivalent value according to the relationship
     by agreement
  4. Greater thickness up to 100 mm by agreement
  5. By agreement according to EU PED 2014/68/EU and AD 2000 – Merkblatt W1/W10

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