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Overview of EN 10028-3 P355N Steel
P355N steel is a weldable, normalized fine-grain steel designed for pressure vessel applications. It offers excellent mechanical properties, including high yield strength, tensile strength, elongation, impact resistance, and corrosion resistance.
P355N steel
This steel grade belongs to the EN 10028-3 standard, which also includes P275 and P460 grades, differentiated by minimum yield strength for plates 16 mm thick and by impact test temperature: NH (0°C and above), NL1 (-20°C and above), NL2 (-40°C and above).
Chemical Composition (%) of EN 10028-3 P355N Steel
| Element | Max % |
|---|---|
| C | 0.20 |
| Si | 0.50 |
| Mn | 0.90 – 1.70 |
| P | 0.03 |
| S | 0.025 |
| Al (min) | 0.02 |
| N | 0.02 |
| Cr | 0.30 |
| Cu | 0.30 |
| Mo | 0.08 |
| Nb | 0.005 |
| Ni | 0.50 |
| Ti | 0.03 |
| V | 0.10 |
Carbon Equivalent: Ceq = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15
Mechanical Properties of EN 10028-3 P355N Steel
| Thickness (mm) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact Energy KVJ (min) |
|---|---|---|---|---|
| ≤16 | 355 | 490–630 | 22 | -20°C: 40, 0°C: 47, +20°C: 55 |
| 16–35 | 355 | 490–630 | 22 | -20°C: 40, 0°C: 47, +20°C: 55 |
| 35–50 | 345 | 490–630 | 22 | -20°C: 40, 0°C: 47, +20°C: 55 |
| 50–70 | 325 | 490–630 | 22 | -20°C: 40, 0°C: 47, +20°C: 55 |
| 70–100 | 315 | 470–610 | 21 | -20°C: 40, 0°C: 47, +20°C: 55 |
| 100–150 | 295 | 450–590 | 21 | -20°C: 40, 0°C: 47, +20°C: 55 |
Typical Dimensions of EN 10028-3 P355N Steel
| Thickness | Width | Length |
|---|---|---|
| 6 – 300 mm | 1500 – 4050 mm | 3000 – 15000 mm |
Equivalent Grades of EN 10028-3 P355N Steel
| Region | Equivalent Grade |
|---|---|
| Europe / EN | Fe E355 |
| Belgium | D52-1,2 |
| Germany / DIN | A St52 |
| France | A52CP |
| Italy | Fe510-1-KW |
| Sweden | SS 21,06,01 |
| Japan | SPV 355 |
Applications of EN 10028-3 P355N Steel
- Boilers and pressure vessels
- Heat exchangers and reactors
- Temperature-controlled vessels
- Industrial storage tanks
- Low-pressure vessels and pipelines
- P355N steel is widely used in oil, chemical, and power industries for high-pressure, high-temperature environments.
Certification & Delivery of EN 10028-3 P355N Steel
- Mill Test Reports: Available as per EN 10204 3.1
- Packing: Break bulk or on pallets as required
- Delivery Time: 7–30 days
- FOB Price: $800 – $1600 / Ton
- Port of Loading: India, China, Europe, UAE
For reliable EN 10028-3 Grade P355N pressure vessel steel plates, Metline is your trusted supplier and manufacturer. We provide tested P355N steel plates with guaranteed chemical composition, mechanical properties, and fast delivery.
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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.