S460NL 1.8903 Steel Specifications

S460NL 1.8903 Steel Specifications

At Gangsteel, we’re excited to dive into the specifications of S460NL 1.8903, a high-strength, low-alloy structural steel under EN 10025-3, known for its exceptional strength and toughness in cold climates. Designated as 1.8903 in the EN standard, this normalized or normalized rolled steel is a top choice for demanding applications like offshore platforms, bridges, and wind turbine towers.

As part of the en 10025 3 normalized steel plate family, S460NL 1.8903’s fine-grain structure ensures reliability in harsh environments. Gangsteel provides a comprehensive look at its specifications, chemical composition, mechanical properties, and applications, comparing it to grades like en 10025 3 s420nl normalized structural steel plate and en 10025 3 s355nl normalized structural steel plate. For more details, visit our en 10025 3 s460nl normalized structural steel plate page.

What is S460NL 1.8903 Steel?

S460NL 1.8903 is a high-strength structural steel under EN 10025-3, offering a minimum yield strength of 460 MPa for plates up to 16 mm thick. Its designation breaks down as:

• S: Structural steel.
• 460: Minimum yield strength in MPa.
• NL: Normalized or normalized rolled, tested for impact toughness at -50°C.
• 1.8903: EN material number for S460NL.

The normalization process refines the grain structure, enhancing S460NL 1.8903’s strength, toughness, and weldability, making it ideal for cold environments. Compared to en 10025 3 s355nl normalized structural steel plate, S460NL 1.8903 offers superior strength for heavier structural demands.

Chemical Composition of S460NL 1.8903

Gangsteel ensures S460NL 1.8903 meets strict EN 10025-3 chemical composition standards for optimal performance:

Key Elements:

• Low Carbon: 0.20% max ensures clean welds and toughness.
• Manganese: 1.00-1.70% boosts strength for heavy structures.
• Aluminum & Niobium: Refine grains for -50°C toughness, a core S460NL 1.8903 specification.
• Low Sulfur & Phosphorus: Minimize inclusions for superior weld quality.

The Carbon Equivalent (CEV) is capped at 0.48% for plates up to 63 mm, calculated as CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15, ensuring weldability, similar to en 10025 3 s420nl normalized structural steel plate.

Mechanical Properties of S460NL 1.8903

Gangsteel guarantees S460NL 1.8903’s mechanical properties deliver top performance for high-strength applications:

• Yield Strength: Starts at 460 MPa for thin plates, ideal for heavy loads in structures like offshore platforms.
• Tensile Strength: 540-720 MPa ensures durability under high tensile forces.
• Elongation: ≥17% supports complex structural designs.
• Impact Toughness: ≥27 J at -50°C ensures reliability in cold climates, outperforming en 10025 3 s355n normalized structural steel plate.
• Hardness: Typically 170-210 HB (Brinell), balancing machinability and durability.

Delivery Conditions and Specifications

Gangsteel provides S460NL 1.8903 with the following specifications:

• Standard: EN 10025-3:2019.
• Condition: Normalized or normalized rolled for consistent microstructure.
• Thickness Range: 6–200 mm, with custom options up to 250 mm.
• Widths: 2000, 2500, or 3000 mm.
• Lengths: Up to 12,000 mm.
• Surface: Hot-rolled, with optional priming for corrosion protection.
• Certifications: EN 10204 3.1/3.2 certificates, ultrasonic testing (UT) per EN 10160, and approvals from ABS, LR, BV, or DNV for marine and structural use.
• Z-Quality: Optional Z15, Z25, or Z35 per EN 10164 for through-thickness properties, reducing lamellar tearing risk, similar to en 10025 3 s420n normalized structural steel plate.
• Tolerances: Per EN 10029 for thickness, width, and length, ensuring precision for structural applications.

Welding and Heat Treatment

S460NL 1.8903 specifications include excellent weldability with a low CEV (≤0.48%):

• Welding: Compatible with GMAW and SAW per EN 1011-2. Preheating (100-150°C) for plates >20 mm; post-weld heat treatment (PWHT) at 550-650°C optional for critical welds.
• Consumables: ER70S-6 for GMAW, EM12K flux with EH14 wire for SAW.
• Weld Quality: Matches en 10025 3 s460n normalized structural steel plate for reliable, high-strength joints.

The fine-grain structure and low impurities ensure minimal weld imperfections, ideal for heavy structural fabrication.

Applications Leveraging S460NL 1.8903 Specifications

Gangsteel supplies S460NL 1.8903 for projects that rely on its specifications:

• Offshore Platforms: Built for Arctic marine conditions with -50°C toughness.
• Wind Turbine Towers: Resists cyclic loads in cold climates like northern Europe.
• Bridges and Cranes: Load-bearing components in northern regions, such as Scandinavia.
• Heavy Machinery: Strong structural parts for extreme environments.

For less demanding projects, consider en 10025 3 s275nl normalized structural steel plate.

Why Choose Gangsteel?

Gangsteel is your trusted source for S460NL 1.8903:

• Inventory: Extensive stock in China for rapid delivery.
• Sizes: Thicknesses from 6–200 mm, widths up to 3000 mm, lengths up to 12,000 mm.
• Delivery: Ships globally in 7-30 days.
• Certifications: EN 10204 3.1/3.2, UT testing (EN 10160), and ABS/LR/BV/DNV approvals.
• Processing: Cutting, welding, and bending tailored to your project needs.

Contact us for en 10025 3 s460nl normalized structural steel plate.

FAQ

What are the key S460NL 1.8903 specifications?
S460NL 1.8903 specifications include a yield strength of ≥460 MPa, tensile strength of 540-720 MPa, ≥17% elongation, and ≥27 J impact toughness at -50°C, per EN 10025-3.

How do S460NL 1.8903 specifications support cold climates?
S460NL 1.8903 specifications, with ≥27 J impact toughness at -50°C, ensure resistance to brittle fracture in arctic environments, ideal for offshore platforms and bridges.

Is S460NL 1.8903 weldable?
Yes, S460NL 1.8903 specifications include a CEV ≤0.48%, enabling easy welding with GMAW or SAW and preheating (100-150°C for >20 mm) for strong joints.

What applications use S460NL 1.8903 specifications?
S460NL 1.8903 specifications support offshore platforms, wind towers, bridges, and cranes in cold climates, ensuring durability under heavy loads.

How do S460NL 1.8903 specifications compare to S355NL?
S460NL 1.8903 specifications include higher yield strength (460 MPa vs 355 MPa) than S355NL, with similar -50°C toughness, for more demanding projects.

What certifications support S460NL 1.8903 specifications?
Gangsteel provides S460NL 1.8903 with EN 10204 3.1/3.2, UT testing (EN 10160), and ABS/LR/BV/DNV approvals, ensuring compliance for global projects.