Overview of P355GH Steel
P355GH steel is a high-quality, low-alloy carbon steel designed for pressure vessel and boiler applications. Compliant with EN 10028-2, it offers excellent mechanical strength, heat resistance, and weldability, ensuring safe and durable operation in high-pressure and high-temperature environments. P355GH is widely used in power generation, petrochemical, chemical processing, and oil & gas industries.
This steel grade features a minimum yield strength of 355 MPa for plates up to 16mm, high tensile strength, and excellent toughness. It is available in plates, hot rolled sheets, tubes, and forgings, providing versatile solutions for critical industrial equipment.
Request a Quote Now
Technical Specifications of P355GH Steel
Chemical Composition (% Max)
| Element | C | Si | Mn | P | S | Cu | Cr | Ni | Mo | Nb | Ti | V |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| P355GH | 0.10–0.22 | 0.60 | 1.10–1.70 | 0.025 | 0.015 | 0.30 | 0.30 | 0.30 | 0.08 | 0.04 | 0.03 | 0.02 |
Mechanical Properties
| Thickness (mm) | Yield Strength (MPa) | Tensile Strength (MPa) | Elongation (%) | Impact Energy (KVJ) |
|---|---|---|---|---|
| ≤16 | 355 | 510–650 | ≥20 | 27–40 |
| 16–40 | 345 | 510–650 | ≥20 | 27–40 |
| 40–60 | 335 | 510–650 | ≥20 | 27–40 |
| 60–100 | 315 | 490–630 | ≥20 | 27–40 |
| 100–150 | 295 | 480–630 | ≥20 | 27–40 |
| 150–250 | 280 | 470–630 | ≥20 | 27–40 |
Available Dimensions
Thickness: 1mm – 250mm
Width: 1500mm – 3500mm
Length: 3000mm – 27000mm
Delivery: Plates, hot rolled sheets, tubes, and forgings
Applications of P355GH Steel
- P355GH steel plates and sheets are widely used in industrial pressure vessels and high-temperature applications:
- Boilers & Boiler Drums: Shells, water walls, superheater tubes, economizer tubes.
- Heat Exchangers & Steam Generators: Shell-and-tube exchangers, industrial heaters, process coolers.
- High-Pressure Storage Tanks: Petroleum, gas storage, LPG tanks, and pressurized fluid containment.
- Chemical & Petrochemical Processing: Reactors, distillation columns, fractionators, and high-temperature piping.
- Power Generation Equipment: Nuclear plant pressure vessels, feedwater heaters, condensers, and steam generators.
- Tubes & Forgings: Seamless and welded tubes, forged components for assembling pressure vessels.
Advantages of P355GH Steel
- High Strength & Thermal Resistance: Withstand high-pressure and high-temperature industrial conditions.
- Excellent Weldability: Low carbon content and controlled alloy composition reduce welding defects.
- Good Ductility & Toughness: Fine-grain structure ensures elongation ≥20% and impact resistance at -20°C.
- Versatility: Available as plates, sheets, tubes, and forgings, with customizable sizes.
- Strict Quality Assurance: EN 10204 3.1/3.2 certified, optional dual certification with ASTM A516 equivalents.
- Industrial Reliability: Provides long-term stability and safety for critical equipment.
EN 10028-2 P355GH steel is a trusted choice for industrial pressure vessels and boilers, offering strength, high-temperature stability, and ease of fabrication.
Its consistent quality, weldability, and performance ensure reliable operation in power generation, petrochemical, chemical, and oil & gas applications.
Gnee Industrial provides fully certified P355GH steel plates, sheets, tubes, and forgings with global shipping, delivering safe, durable, and cost-effective solutions for critical industrial projects.
Get Your P355GH Steel Plate Quote Today.
Contact now to get P355GH Boiler Quote
Application
What is P355GH material?
P355GH steel gives optimum performance for pressurised products that must support a creep limit greater than 180N/mm2 at 400ºC. These types of steel are characterised by good weldability. They are used above all for manufacturing boilers, pressure vessels and pipes for the transportation of hot liquids.
What is en 10028 P355GH equivalent to?
P355GH pressure vessel steel is an equivalent to ASTM A516 Grade 70 and ASME SA516 Grade 70.
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 P235gh pipe equivalent ASTM material?
P235gh grade is an alloy of European standard EN 10028-2, which is also called the A2885 grade C steel, The P235gh Equivalent Astm Material is the ASTM A285 or the A285M standard.
What is the yield strength of P355GH?
Carbon steels that are characterised by a greater resistance to pressure, capable of bearing significant pressure both at high and low temperatures. The yield strength ranges between 315 and 355 MPa, according to the range of thicknesses and its tensile strength goes from 510 to 650 MPa.