Looking for a reliable P355N Pressure Vessel Steel Plate manufacturer in China? You are in the right place. As a professional EN10028-3 steel plate factory, Gnee Steel produces high-quality, mill-certified P355N steel plates with strict quality control, competitive pricing, and fast delivery for industrial projects.
Overview of P355N/1.0562 Steel Plate
P355N steel plate is a structural steel for pressure purposes, classified under the EN10028-3 standard. Other grades in this standard include P275NH, P275NL1, P275NL2, P355NH, P355NL1, P355NL2, P460NH, P460NL1, P460NL2.
Bebon Steel offers P355N/1.0562 steel plates in normalized rolled or as-rolled conditions. For guaranteed steel properties, low-temperature impact testing at -20°C, normalized heat treatment, and ultrasonic testing are recommended.
EN10028-3 P355N steel plate is mainly used in high-stressed welded constructions, including constructional steelwork, hydraulic steelwork, bridge building, mechanical engineering, shipbuilding, pressure vessels, and penstocks.
Specification of P355N Steel Plate
| Dimension | Range |
|---|---|
| Thickness | 6 mm – 350 mm |
| Width | 1500 mm – 4200 mm |
| Length | 3000 mm – 18000 mm |
| Delivery Condition | Normalized / As-rolled |
| Surface | Shot-blasted / Primer-coated (optional) |
Chemical Composition (%) of P355N Steel Plate
| Element | Max / Range (%) |
|---|---|
| C | ≤ 0.20 |
| Si | ≤ 0.50 |
| Mn | 0.90 – 1.70 |
| P | ≤ 0.03 |
| S | ≤ 0.03 |
| Al | ≤ 0.020 |
| Cr | ≤ 0.30 |
| Cu | ≤ 0.30 |
| Mo | ≤ 0.08 |
| N | ≤ 0.02 |
| Nb | ≤ 0.05 |
| 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 P355N Steel Plate
| 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 |
Impact Test (KV Min, J) of P355N Steel Plate
| Thickness (mm) | Longitudinal | Transverse | Temperature (°C) |
|---|---|---|---|
| 5 – 150 | 40 – 55 | 20 – 31 | -20°C / 0°C / +20°C |
Applications of P355N Steel Plate
- High-stressed welded construction in bridges and buildings
- Hydraulic steelwork and pressure vessels
- Mechanical engineering components
- Shipbuilding and penstocks
- Oil, chemical, and power plant equipment
Equivalent Grades of P355N Steel Plate
| Region / Country | Equivalent Grade |
|---|---|
| Germany | DIN 17102 StE355 |
| Italy | UNI7382 FeE355KG |
| Spain | UNE36081 AE355KG |
| UK | BS1501 223Gr.490 |
Delivery & Logistics Guarantee of P355N Steel Plate
- Container-compliant shipment
- Moisture-proof and abrasion-proof packaging
- Fast and secure shipping, guaranteed on-time delivery
- Experienced logistics team ensures your project timeline
For projects requiring high-quality P355N Pressure Vessel Steel Plate, Bebon Steel is your trusted manufacturer and supplier. We provide mill-certified P355N/1.0562 steel plates, tested chemical composition, and reliable 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.