Need high-quality P355N Pressure Vessel Steel Plates? Gnee, a professional EN10028-3 steel factory in China, delivers mill-certified P355N plates with precise chemical composition, superior mechanical properties, and consistent quality. Your dependable partner for pressure vessel projects.
P355N Pressure Vessel Steel Plates
P335N pressure vessel steel plate is a normalized, weldable fine grain structural steel designed for pressure vessel applications. It is widely used in industrial boilers, welded pressure vessels, and heat exchangers, engineered to perform reliably under elevated temperature service.
Gnee can supply P355N steel plates in thickness ranges from 6 mm to 300 mm, guaranteeing the steel's chemical composition and mechanical properties. For large orders, such as 1000 tons, the general rolling time is within 30 days.
Specification of P355N Steel Plate
| Dimension | Range |
|---|---|
| Thickness | 6 mm – 300 mm |
| Width | 1500 mm – 4200 mm |
| Length | 3000 mm – 15000 mm |
| Delivery Condition | Normalized / As-rolled |
| Surface | Shot-blasted / Painted / Galvanized (optional) |
Chemical Composition (%) of P355N Steel Plate
| Element | Range (%) |
|---|---|
| C | 0.10 – 0.22 |
| Mn | 0.10 – 1.70 |
| S | 0.015 |
| N | 0.012 |
| Cu | 0.30 |
| Nb | 0.020 |
| Ti | 0.03 |
| Si | 0.60 |
| P | 0.025 |
| Al | 0.020 |
| Cr | 0.30 |
| Mo | 0.08 |
| Ni | 0.30 |
| V | 0.02 |
Mechanical Properties of P355N Steel Plate
| Thickness (mm) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact Energy (KV J) -20°C / 0°C / +20°C |
|---|---|---|---|---|
| ≤16 | 355 | 510–650 | 20 | 27 / 34 / 40 |
| 16–40 | 345 | 510–650 | 20 | 27 / 34 / 40 |
| 40–60 | 335 | 460–580 | 20 | 27 / 34 / 40 |
| 60–100 | 315 | 490–630 | 20 | 27 / 34 / 40 |
| 100–150 | 295 | 480–630 | 20 | 27 / 34 / 40 |
| 150–250 | 280 | 470–630 | 20 | 27 / 34 / 40 |
Applications of P355N Steel Plate
- Industrial boilers and pressure vessels
- Heat exchangers and chemical reactors
- High-stressed welded constructions in bridges and buildings
- Shipbuilding, penstocks, and oil & gas equipment
- Mechanical engineering components
Equivalent Grades of P355N Steel Plate
| Region / Country | Equivalent Grade |
|---|---|
| Europe / EN | EN10028-2 P355 GH |
| Germany / DIN | StE355 / EU113 / 17135 / 17165 / 17102 |
| Japan / JIS | 19Mn8 / SPV355 / SB480 |
| USA / ASTM | A537 Class 1 |
| Italy / UNI | FeE355 KG / KW / KT |
Gnee offers comprehensive steel processing services, including cutting, welding, drilling, shot blasting, painting, and galvanizing. Steel packaging is moisture-proof and abrasion-proof, and shipping is fast and secure, ensuring on-time delivery.
For high-quality P355N Pressure Vessel Steel Plate, GneeSteel is your trusted manufacturer and exporter. We provide mill-certified EN10028-3 P355N steel plates with guaranteed chemical composition, mechanical properties, and fast delivery.
Contact Gnee today for competitive prices, full specifications, and professional service for your pressure vessel projects.
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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.