Searching for a reliable P355N Pressure Vessel Steel Plate manufacturer in China? Gnee Steel is your trusted source. As a professional EN10028-2 steel plate factory, we produce high-quality, mill-certified P355N steel plates with strict quality control, competitive pricing, and fast delivery.
Overview of P355N Pressure Vessel Steel Plate
P355N Pressure Vessel Steel Plate is a normalized, weldable, fine-grain steel designed for pressure-bearing applications at room temperature. Equivalent materials include DIN 17102 StE355, UNI7382 FeE355KG, UNE36081 AE355KG, BS1501 223Gr.490, ensuring compatibility with global projects.
P355N Pressure Vessel Steel Plate
At Gnee Steel, we provide P355N steel plates for reactors, heat exchangers, separators, spherical tanks, LPG cylinders, nuclear reactor pressure shells, and boiler drums. Our plates combine high yield strength, excellent elongation, and superior toughness for critical industrial applications.
Specifications of P355N Pressure Vessel Steel Plate
| Dimension | Range |
|---|---|
| Thickness | 6 mm – 350 mm |
| Width | 1500 mm – 4200 mm |
| Length | 3000 mm – 18000 mm |
| Surface Treatment | As-rolled / Shot-blasted / Primer-coated |
| Delivery | Standard container shipment, moisture-proof and abrasion-proof packaging |
Chemical Composition of P355N Pressure Vessel Steel Plate (%)
| Element | Max (%) / Range |
|---|---|
| Carbon (C) | ≤ 0.20 |
| Silicon (Si) | ≤ 0.50 |
| Manganese (Mn) | 0.90 – 1.70 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.03 |
| Aluminum (Al) | ≤ 0.020 |
| Chromium (Cr) | ≤ 0.30 |
| Copper (Cu) | ≤ 0.30 |
| Molybdenum (Mo) | ≤ 0.08 |
| Nitrogen (N) | ≤ 0.02 |
| Niobium (Nb) | ≤ 0.05 |
| Nickel (Ni) | ≤ 0.50 |
| Titanium (Ti) | ≤ 0.03 |
| Vanadium (V) | ≤ 0.10 |
This chemical composition ensures excellent strength, weldability, and elevated temperature performance.
Mechanical Properties of P355N Pressure Vessel Steel Plate
| Property | Value |
|---|---|
| Yield Strength | 280 – 355 MPa |
| Tensile Strength | 460 – 650 MPa |
| Elongation (Min) | 20% |
Impact Test of P355N Pressure Vessel Steel Plate
| Delivery Condition | Nominal Thickness (mm) | Impact Energy KV Min (J) at Temperature (°C) |
|---|---|---|
| Longitudinal | 5 – 150 | -50°C: -, -40°C: -, -20°C: 40, 0°C: 47, +20°C: 55 |
| Transverse | 5 – 150 | -50°C: -, -40°C: -, -20°C: 20, 0°C: 27, +20°C: 31 |
These values confirm P355N steel plate's excellent toughness at various temperatures for pressure vessel applications.
Applications of P355N Pressure Vessel Steel Plate
- Oil and gas reactors and separators
- Heat exchangers and boiler drums
- Spherical tanks and LPG cylinders
- Nuclear reactor pressure shells
- Power plant pipelines and high-pressure equipment
GneeSteel ensures all P355N steel plates are mill-certified, ready for fabrication, and suitable for critical high-pressure applications.
Equivalent Grades of P355N Steel Plate
| Region / Country | Equivalent Grade |
|---|---|
| Germany | DIN 17102 StE355 |
| Italy | UNI7382 FeE355KG |
| Spain | UNE36081 AE355KG |
| UK | BS1501 223Gr.490 |
These equivalents make P355N steel plate ideal for global projects, ensuring compatibility with European and international standards.
Delivery & Logistics Guarantee
Container shipment compliant with international standards
Moisture-proof and abrasion-proof steel packaging
Fast, secure, and low-risk shipping for timely delivery
Professional logistics team ensures project schedules are met
For high-pressure and high-temperature applications, P355N Pressure Vessel Steel Plate under EN10028-2 offers normalized, weldable fine-grain properties with global standard compliance. Gnee Steel supplies P355N steel plates with flexible dimensions, certified quality, and rapid 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.