Looking for reliable EN10028-3 P355N boiler steel plate manufacturers in China? You are in the right place. EN10028-3 steel is a weldable fine grain normalized steel grade widely used in pressure vessels, boilers, and pipelines.

EN10028-3 P355N boiler steel plate
Gnee is a leading steel supplier in China and offers factory-direct pricing, large stock, and fast delivery for P355N, P355NH, P355NL1, P355NL2, P275NH, P460NH, P460NL1, P460NL2, P275NL1, and P275NL2 steel plates.
EN10028-3 Steel Grades Overview
EN10028-3 standard specifies flat products made of steels for pressure purposes, including room temperature, high temperature, and low-temperature grades.
Specifications of EN10028-3 P355N Steel Plate
| Parameter | Specification |
|---|---|
| Thickness | 6 – 250 mm |
| Width | 1150 – 3700 mm |
| Length | 3000 – 18000 mm |
| Minimum Order Quantity | 2 PCS |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | T/T, Irrevocable at sight L/C |
| Delivery Time | 20 – 35 days |
| Standard | EN10028-3 |
| Services Available | Cutting, Welding, Sand Blasting, Painting, Flaw-Detection (Grade 1 & 2), Heat Treatment, Galvanizing |
Chemical and Mechanical Properties of EN10028-3 P355N Steel Plate
Chemical Composition (% Max):
| C | Si | Mn | P | S | Cu | Nb | Ti | Cr | Mo | Ni | Al | V |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.20 | 0.50 | 0.90-1.70 | 0.03 | 0.03 | 0.30 | 0.05 | 0.03 | 0.30 | 0.08 | 0.50 | 0.020 | 0.10 |
Mechanical Properties
| Thickness (mm) | Yield Strength MPa | Tensile Strength MPa | Elongation % |
|---|---|---|---|
| ≤16 | 355 | 490–630 | 22 |
| 16–35 | 355 | 490–630 | 22 |
| 35–50 | 345 | 490–630 | 22 |
| 50–70 | 325 | 490–630 | 22 |
| 70–100 | 315 | 470–610 | 21 |
| 100–150 | 295 | 450–590 | 21 |
| >150 | 295 | 450–590 | 21 |
Applications of EN10028-3 P355N Steel Plate
- Pressure vessels, industrial boilers, and heat exchangers
- Oil and gas storage tanks, liquefied gas cylinders
- High-pressure pipelines and hydropower station components
- Reactors, separators, turbine casings, and other industrial equipment
EN10028-3 P355N Steel Plate is a high-quality weldable fine grain normalized steel suitable for pressure vessels, boilers, and pipelines across petroleum, chemical, power, and hydropower industries.
Gnee is a professional EN10028-3 P355N Steel Plate supplier in China, offering competitive prices, reliable stock, and comprehensive steel processing services. Contact us now for the latest EN10028-3 P355N Steel Plate price and availability.
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What is the difference between P355GH and P355NH?
P355GH: This steel is designed for high-temperature applications and is characterized by high strength at temperatures up to 500 °C. P355NH: This steel is designed for low-temperature applications and is characterized by high toughness at low temperatures.
What is P355GH equivalent to ASTM material?
P355GH pressure vessel steel is an equivalent to ASTM A516 Grade 70 and ASME SA516 Grade 70.
What is P355NH material?
A pressure vessel steel grade with good weldability and high resistance to brittle cracking, P355NH is used by the world's fabricators for the manufacture of pressure vessel tanks for the storage of pressurised gases.
What is the temperature range of P355NH?
Its most widespread use is in application environments up to 400 ºC. P355NH steel is supplied in the normalised condition. The normalising temperature is 900 - 950 ºC, and it must be left in the furnace after temperature equalising for approximately 1 minute per millimetre of thickness of the plate.

