EN10025-3 S355NL 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 part of the European standard for hot-rolled structural steel products and is particularly suited for applications requiring high strength and good toughness at low temperatures.

Chemical Composition:

The chemical composition of S355NL is carefully controlled to ensure the material's mechanical properties and weldability. The typical chemical composition includes the following elements (in weight percentage):

· Carbon (C): ≤ 0.18%

· Silicon (Si): ≤ 0.55%

· Manganese (Mn): ≤ 1.60%

· 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%

· Copper (Cu): ≤ 0.55%

· Nickel (Ni): ≤ 0.55%

· Chromium (Cr): ≤ 0.30%

· Molybdenum (Mo): ≤ 0.10%

· Boron (B): ≤ 0.005%

Mechanical Properties:

The mechanical properties of S355NL are characterized by its high strength and excellent toughness, which make it suitable for a wide range of applications. The typical mechanical properties are as follows:

· Yield Strength: ≥ 355 MPa

· Tensile Strength: 470 - 630 MPa

· Elongation: ≥ 22%

· Impact Energy : ≥ 27 Joules

Heat Treatment State:

S355NL is supplied in a normalized rolled condition. Normalizing is a heat treatment process that refines the grain structure and improves the mechanical properties of the steel. The rolling process ensures that the steel plate has a uniform thickness and flat surface.

Low-Temperature Impact Test:

S355NL is designed to perform well at low temperatures, and as such, it undergoes a low-temperature impact test at -50°C. This ensures that the material maintains its toughness and impact resistance in cold environments.

Available Dimensions Range:

TJC Steel Group offers S355NL structural steel plates in a wide range of sizes to meet the demands of various projects. The typical available dimensions are:

· Thickness: 6mm - 300mm

· Width: 1500mm - 4020mm

· Length: 3000mm - 18000mm

Main Applications:

S355NL is used in a variety of applications where strength and toughness are paramount, especially in low-temperature environments. Some of the primary applications include:

· Construction of bridges

· Offshore structures

· Power plants

· Mining and earth-moving equipment

· Load-bearing parts for mobile equipment

· Wind tower components

TJC Steel Group Supply Cases:

TJC Steel Group has a proven track record of supplying high-quality S355NL steel plates to various industries worldwide. One notable supply case involved the provision of S355NL plates for a major bridge construction project in Europe, where the steel's strength and durability were crucial for ensuring the structure's longevity and safety. Another case saw TJC supplying these plates for a wind farm development, where the material's ability to withstand harsh weather conditions was essential.

In conclusion, EN10025-3 S355NL is a versatile and reliable structural steel grade that meets stringent mechanical and chemical requirements. TJC Steel Group's commitment to quality and customer satisfaction makes it a trusted supplier of S355NL steel plates for critical applications around the globe.