EN10028-3 P355NL1 Pressure Vessel Steel Plate

​EN10028-3 P355NL1 is a pressure vessel steel grade that is widely used in the fabrication of pressure vessels and boilers due to its excellent mechanical properties and chemical composition. This grade is designed to meet the stringent requirements of the boiler and pressure vessel industry, ensuring safety and reliability in various applications.
Chemical Composition:
The chemical composition of P355NL1 is carefully controlled to provide the necessary strength and toughness for pressure vessel applications. The typical chemical composition includes:

• Carbon (C): ≤ 0.18%
• Silicon (Si): ≤ 0.50%
• Manganese (Mn): ≤ 1.60%
• Phosphorus (P): ≤ 0.025%
• Sulfur (S): ≤ 0.015%
• Aluminum (Al): ≥ 0.020%
• Niobium (Nb): ≤ 0.05%
• Titanium (Ti): ≤ 0.03%
• Vanadium (V): ≤ 0.05%

Mechanical Properties:
P355NL1 offers a good balance of strength and ductility, making it suitable for a wide range of applications. The mechanical properties include:

• Yield Strength: ≥ 355 MPa
• Tensile Strength: 490 - 630 MPa
• Elongation: ≥ 22%
• Impact Energy (at -40°C): ≥ 40 Joules

Heat Treatment:
The steel is generally supplied in a normalized condition. Normalizing involves heating the steel to a temperature above its critical point and then cooling it in air. This process refines the grain structure and improves the mechanical properties of the steel.
Low-Temperature Impact Test:
P355NL1 is required to undergo a low-temperature impact test at -40°C, ensuring that the material maintains adequate toughness at low temperatures. The minimum impact energy is specified as 40 Joules to ensure the material's suitability for cold environments.
Available Dimensions:
TJC Steel Group offers P355NL1 in a wide range of sizes to meet the diverse needs of its customers. The available dimensions include:

• Thickness: 6mm - 300mm
• Width: 1500mm - 4020mm
• Length: 3000mm - 18000mm

Main Applications:
P355NL1 is commonly used in the construction of pressure vessels, boilers, and other high-pressure equipment. It is particularly suited for applications where low-temperature toughness is required, such as in the petrochemical, chemical, and power generation industries.
TJC Steel Group Supply Cases:
TJC Steel Group has a proven track record of supplying high-quality P355NL1 steel plates to various industries. One notable supply case involved the delivery of 500 tons of P355NL1 plates for a major petrochemical plant expansion project. The steel plates were used in the construction of high-pressure reactors and separators, where their excellent mechanical properties and low-temperature toughness were crucial for the safety and efficiency of the operation.
In conclusion, EN10028-3 P355NL1 is a versatile and reliable pressure vessel steel grade that meets the rigorous demands of the boiler and pressure vessel industry. TJC Steel Group's commitment to quality and customer satisfaction ensures that clients receive the highest quality P355NL1 steel plates for their critical applications.