EN10028-3 P275NL1 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 operate at low temperatures, making it suitable for applications in the petrochemical, chemical, and energy industries where low-temperature resistance is a critical requirement.

Chemical Composition:

The chemical composition of EN10028-3 P275NL1 is carefully controlled to ensure the material's toughness and weldability. The typical chemical composition includes:

· Carbon (C): ≤ 0.16%

· Silicon (Si): ≤ 0.35%

· Manganese (Mn): ≤ 1.40%

· Phosphorus (P): ≤ 0.025%

· Sulfur (S): ≤ 0.015%

· Aluminum (Al): ≥ 0.020%

· Niobium (Nb): ≤ 0.05%

· Titanium (Ti): ≤ 0.03%

· Vanadium (V): ≤ 0.05%

· Nickel (Ni): ≤ 0.30%

· Chromium (Cr): ≤ 0.30%

· Molybdenum (Mo): ≤ 0.08%

· Copper (Cu): ≤ 0.30%

Mechanical Properties:

The mechanical properties of P275NL1 are characterized by its high strength and good ductility, which are essential for pressure vessel applications. The typical mechanical properties are as follows:

· Yield Strength: ≥ 275 MPa

· Tensile Strength: 430 - 580 MPa

· Elongation: ≥ 22%

· Impact Energy (at -40°C): ≥ 40J

Heat Treatment:

P275NL1 is generally supplied in the normalized condition. Normalization is a heat treatment process that refines the grain structure and improves the mechanical properties of the steel. The steel is heated to a temperature above its upper critical point and then cooled in air.

Low-Temperature Impact Test:

The material is subjected to a low-temperature impact test to ensure its toughness at sub-zero temperatures. The impact energy values are measured at -40°C, which is a standard temperature for low-temperature applications.

Available Dimensions:

TJC Steel Group offers EN10028-3 P275NL1 pressure vessel steel plates in a wide range of sizes. The typical available dimensions include:

· Thickness: 6mm - 300mm

· Width: 1500mm - 4020mm

· Length: 3000mm - 18000mm

Main Applications:

Due to its excellent properties, P275NL1 is commonly used in the following applications:

· Pressure vessels

· Boilers

· Heat exchangers

· Storage tanks

· Columns and towers in refineries and chemical plants

· Equipment for the oil and gas industry

TJC Steel Group Supply Cases:

TJC Steel Group has extensive experience in supplying EN10028-3 P275NL1 steel plates to various industries worldwide. One notable supply case involved the delivery of P275NL1 plates for a major petrochemical project in the Middle East. The plates were used to construct high-pressure vessels that required exceptional toughness and resistance to low-temperature conditions.

In another instance, TJC supplied P275NL1 steel to a European energy company for the construction of a new power plant. The steel plates were utilized in the production of boiler components, where their high strength and weldability were crucial for the project's success.

Conclusion:

EN10028-3 P275NL1 is a versatile pressure vessel steel grade that offers a unique combination of strength, toughness, and weldability. TJC Steel Group's commitment to quality and customer satisfaction ensures that clients receive high-quality P275NL1 steel plates that meet the stringent requirements of their projects. With a wide range of available sizes and a proven track record of successful supply cases, TJC is a trusted supplier of P275NL1 steel for critical applications in various industries.