S355NL Steel Density and Weight

S355NL Steel Density and Weight

S355NL density and S355NL material density are critical properties for engineers designing with this high-strength, low-alloy structural steel under EN 10025-3, which specifies normalized or normalized rolled weldable fine grain structural steels. With a density of approximately 7.85 g/cm³, S355NL supports weight calculations for structural applications in cold climates, such as offshore platforms and bridges. This article details the density, weight calculations, chemical composition, mechanical properties, and applications of S355NL, addressing core keywords s355nl density and s355nl material density. For more details, visit our EN 10025-3 S355NL normalized structural steel plate.

What is S355NL Steel?

S355NL is a fine-grain structural steel under EN 10025-3, designed for high strength and low-temperature performance. Its designation indicates:

• S: Structural steel.
• 355: Minimum yield strength of 355 MPa (≤16 mm).
• NL: Normalized or normalized rolled, with impact toughness tested at -50°C.

The S355NL density and S355NL material density are essential for weight optimization in structural designs.

S355NL Density and Weight Calculations

The S355NL material density is 7.85 g/cm³ (7850 kg/m³), typical for structural steels with low alloy content, consistent across EN 10025-3 grades like S355N and S420NL. This density enables precise weight calculations for structural engineering:

• Density: 7.85 g/cm³ = 7850 kg/m³.
• Weight Calculation: Weight (kg) = Density (7850 kg/m³) × Volume (m³).
• Example: A S355NL plate of 1 m × 1 m × 10 mm (0.01 m) has a volume of 0.01 m³, weighing 0.01 × 7850 = 78.5 kg.
• Practical Use: The S355NL density supports weight optimization in applications like wind turbine towers, ensuring efficient design without compromising strength.

Chemical Composition Supporting Density

The S355NL material density is influenced by its composition, which is optimized for strength and toughness:

Key Elements:

• Low Alloy Content: Minimal alloying (Nb, V, Ti) maintains the standard density of 7.85 g/cm³, similar to other structural steels.
• Low Carbon (C): ≤0.18% ensures toughness and weldability without affecting density.
• Manganese (Mn): 0.90-1.65% enhances strength, supporting load-bearing capacity.

Carbon Equivalent (CEV): ≤0.43% (≤63 mm), calculated as CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15, ensures weldability, complementing the S355NL density.

Mechanical Properties Supporting Structural Use

The mechanical properties of S355NL complement its density for structural applications:

• Yield Strength: ≥355 MPa (≤16 mm) supports heavy loads.
• Tensile Strength: 470-630 MPa ensures durability.
• Elongation: ≥22% allows ductility for complex designs.
• Impact Toughness: ≥27 J at -50°C ensures cold-climate reliability.

The S355NL material density of 7.85 g/cm³, combined with these properties, enables lightweight yet robust structural designs.

Welding and Heat Treatment

S355NL is weldable, supporting structural fabrication:

• Welding: Compatible with GMAW and SAW per EN 1011-2. Preheating (100-150°C) for >20 mm; no preheat for thinner plates.
• PWHT: Optional at 550-650°C for critical welds.
• Consumables: ER70S-6 (GMAW), EM12K flux with EH14 wire (SAW).

The low CEV and fine-grain structure ensure weld integrity without affecting S355NL density.

Applications

The S355NL material density supports weight-efficient applications in:

• Offshore Platforms: Cold marine environments (e.g., Arctic seas).
• Wind Turbine Towers: Sub-zero climates (e.g., northern Europe).
• Bridges and Cranes: Northern regions (e.g., Scandinavia).
• Pressure Vessels: Low-temperature storage (e.g., LNG systems).

Explore EN 10025-3 S420NL normalized structural steel plate.

Why Choose Gangsteel?

Gangsteel supplies S355NL:

• Inventory: Extensive stock in China.
• Sizes: Thickness 6–250 mm, widths 2000/2500/3000 mm, lengths up to 12,000 mm.
• Delivery: 7-30 days globally.
• Certifications: EN 10204 3.1/3.2, UT testing (EN 10160), ABS/LR/BV/DNV approvals.
• Processing: Cutting, welding, bending.

Contact us for EN 10025-3 S355NL normalized structural steel plate.

FAQ

What is the S355NL density?
The S355NL density is 7.85 g/cm³ (7850 kg/m³), enabling accurate weight calculations for structural designs (e.g., a 1 m² × 10 mm plate weighs 78.5 kg).

How is S355NL material density used in design?
S355NL material density of 7.85 g/cm³ supports weight optimization in offshore platforms and wind towers, ensuring efficient designs with high strength (355 MPa yield) and -50°C toughness.

What properties complement S355NL density?
S355NL properties include 355 MPa yield, 470-630 MPa tensile strength, ≥22% elongation, and ≥27 J at -50°C, ideal for cold-climate structures.

Is S355NL suitable for cold climates?
Yes, S355NL’s -50°C toughness (≥27 J) and 7.85 g/cm³ density ensure reliability in arctic offshore platforms and bridges.