EN10025-3 S420NL is a normalized rolled structural steel plate grade that is widely recognized for its excellent mechanical properties and versatility in various engineering applications. This grade is particularly appreciated for its ability to withstand extreme temperatures and harsh environments, making it a preferred choice for construction projects that require high strength and durability.

Chemical Composition:

The chemical composition of S420NL is strictly controlled to ensure the material's mechanical properties and weldability. The typical chemical composition includes the following elements:

· Carbon (C): ≤ 0.18%

· Silicon (Si): ≤ 0.60%

· Manganese (Mn): ≤ 1.70%

· Phosphorus (P): ≤ 0.025%

· Sulfur (S): ≤ 0.020%

· Aluminum (Al): ≥ 0.020%

· Niobium (Nb): ≤ 0.05%

· Titanium (Ti): ≤ 0.03%

· Vanadium (V): ≤ 0.12%

· Nitrogen (N): ≤ 0.015%

Mechanical Properties:

The mechanical properties of S420NL are characterized by its high strength and toughness. The typical values for these properties are as follows:

· Yield Strength: ≥ 355 MPa

· Tensile Strength: 480 - 620 MPa

· Elongation: ≥ 20%

· Impact Energy : ≥ 27 Joules

Heat Treatment State:

S420NL is supplied in a normalized state, which provides a uniform microstructure and enhanced mechanical properties. The normalization process involves heating the steel to a temperature above its critical point and then cooling it in air.

Low-Temperature Impact Test:

The material is subjected to a low-temperature impact test at -20°C to ensure that it maintains its toughness and impact resistance in cold environments. This is crucial for applications in areas with low temperatures.

Available Dimensions:

TJC Steel Group offers S420NL structural steel plates in a wide range of sizes to meet the diverse needs of our clients. The typical available dimensions are:

· Thickness: 6mm - 300mm

· Width: 1500mm - 4020mm

· Length: 3000mm - 18000mm

Main Applications:

S420NL is used in a variety of applications where high strength and good toughness are required, such as:

· Bridges

· Buildings

· Cranes

· Offshore structures

· Pressure vessels

· Renewable energy structures (e.g., wind turbines)

TJC Steel Group Supply Cases:

TJC Steel Group has supplied S420NL steel plates to numerous projects around the world, demonstrating our commitment to quality and customer satisfaction. One notable supply case involved the construction of a high-speed railway bridge, where the high strength and excellent low-temperature impact properties of S420NL were crucial for ensuring the structure's safety and longevity.

In conclusion, EN10025-3 S420NL is a versatile and reliable structural steel grade that is well-suited for applications in challenging environments. TJC Steel Group is proud to offer this high-quality material, backed by our extensive experience and dedication to excellence in steel production and supply.