S355N Density and Weight Guide

S355N Density and Weight Guide

At Gangsteel, we’re proud to present a comprehensive guide on S355N density and weight, critical for engineers and project managers designing with this high-strength, low-alloy structural steel under EN 10025-3. Renowned for its fine-grain structure, 355 MPa yield strength, and -20°C toughness, S355N is a top choice for bridges, cranes, and building frameworks in moderate climates.

As part of the en 10025 3 normalized steel plate family, S355N delivers reliable performance. Gangsteel details its density, weight calculation methods, and applications, comparing it to grades like en 10025 3 s420n normalized structural steel plate and en 10025 3 s460n normalized structural steel plate. For stock, quotes, or further details, contact us or visit our en 10025 3 s355n normalized structural steel plate page.

What is S355N Steel?

S355N is a normalized or normalized rolled fine-grain structural steel under EN 10025-3:2019, with:

• S: Structural steel.
• 355: Minimum yield strength of 355 MPa (≤16 mm).
• N: Normalized, with impact toughness tested at -20°C.
• Material Number: 1.0545.

Its fine-grain microstructure ensures high strength, toughness, and weldability, ideal for moderate climates. Compared to en 10025 3 s460n normalized structural steel plate, S355N has lower strength (355 MPa vs 460 MPa) but is more cost-effective for general structural applications.

S355N Steel Density

The density of S355N steel is 7.85 g/cm³ (7850 kg/m³), typical for structural steels due to its iron-based composition with low-alloy elements. This density is consistent across EN 10025-3 grades like en 10025 3 s420n normalized structural steel plate and en 10025 3 s355nl normalized structural steel plate.

Factors Affecting Density

• Composition: S355N’s low-alloy content (e.g., manganese, niobium) has minimal impact on density, as iron dominates (~97%).
• Consistency: Density remains stable across plate sizes (6–200 mm) and normalized processing conditions.

S355N Steel Weight Calculation

The weight of an S355N steel plate is calculated using the formula:
Weight (kg) = Length (m) × Width (m) × Thickness (m) × Density (kg/m³)

Example Calculations

1. Plate: 6 m × 2 m × 10 mm (0.01 m)
   Weight = 6 × 2 × 0.01 × 7850 = 942 kg
2. Plate: 12 m × 3 m × 50 mm (0.05 m)
   Weight = 12 × 3 × 0.05 × 7850 = 14,130 kg
3. Plate: 8 m × 2.5 m × 20 mm (0.02 m)
   Weight = 8 × 2.5 × 0.02 × 7850 = 3,140 kg

These calculations aid in structural design, load-bearing assessments, and logistics planning. Gangsteel provides tailored weight calculations for custom dimensions.

Chemical Composition Supporting S355N Density

The S355N chemical composition under EN 10025-3 ensures its 7.85 g/cm³ density:

Carbon Equivalent (CEV): ≤0.43% (≤63 mm), calculated as CEV = C + Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15, ensuring weldability. The iron-heavy composition (~97%) drives the 7.85 g/cm³ density, consistent with en 10025 3 s275n normalized structural steel plate.

Mechanical Properties Supporting S355N Applications

Gangsteel guarantees S355N’s mechanical properties complement its density:

• Yield Strength: Starts at 355 MPa, ideal for moderate loads.
• Tensile Strength: 470-630 MPa ensures durability.
• Elongation: ≥22% supports complex designs.
• Impact Toughness: ≥27 J at -20°C ensures reliability in moderate climates.
• Hardness: Typically 150-190 HB, balancing machinability and durability.

The 7.85 g/cm³ density ensures an efficient strength-to-weight ratio, comparable to en 10025 3 s355nl normalized structural steel plate.

Delivery Conditions and Specifications

Gangsteel provides S355N with:

• Standard: EN 10025-3:2019.
• Condition: Normalized or normalized rolled.
• Thickness Range: 6–200 mm, custom up to 250 mm.
• Widths: 2000/2500/3000 mm.
• Lengths: Up to 12,000 mm.
• Surface: Hot-rolled, optional priming for corrosion protection.
• Certifications: EN 10204 3.1/3.2, UT testing (EN 10160), ABS/LR/BV/DNV approvals.
• Z-Quality: Optional Z15, Z25, Z35 per EN 10164.

Welding and Heat Treatment

S355N’s density and properties support weldability:

• Welding: GMAW/SAW per EN 1011-2; preheating typically not required for <20 mm; optional for thicker plates (100-150°C).
• PWHT: Optional at 550-650°C.
• Consumables: ER70S-6 (GMAW), EM12K flux with EH14 wire (SAW).

Applications Leveraging S355N Density and Weight

Gangsteel supplies S355N for projects relying on its density and weight:

• Bridges: Predictable weight for girders in moderate climates.
• Cranes: High strength-to-weight ratio for structural components.
• Building Frameworks: Efficient material use in temperate regions.
• Heavy Machinery: Durable components with calculated weights.

For colder climates, consider en 10025 3 s355nl normalized structural steel plate.

Why Choose Gangsteel?

Gangsteel is your trusted source for S355N:

• Inventory: Extensive stock in China.
• Sizes: Thicknesses 6–200 mm, widths up to 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 s355n normalized structural steel plate.

FAQ

What is the S355N steel density?
S355N steel density is 7.85 g/cm³ (7850 kg/m³), typical for structural steels, aiding accurate weight calculations.

How is S355N steel weight calculated?
S355N weight is calculated as: Weight (kg) = Length (m) × Width (m) × Thickness (m) × 7850 kg/m³, e.g., 6 m × 2 m × 0.01 m = 942 kg.

What supports S355N’s mechanical properties?
S355N’s 7.85 g/cm³ density and composition (manganese, niobium) ensure a high strength-to-weight ratio for structural efficiency.

What applications use S355N steel density and weight?
S355N’s density supports weight-efficient designs for bridges, cranes, and frameworks in moderate climates.

How does S355N compare to S460N?
S355N’s density (7.85 g/cm³) matches S460N, but its lower yield strength (355 MPa vs 460 MPa) makes it more cost-effective.

What certifications support S355N steel?
Gangsteel provides S355N with EN 10204 3.1/3.2, UT testing (EN 10160), and ABS/LR/BV/DNV approvals.

Summary

S355N steel, with a density of 7.85 g/cm³ (7850 kg/m³), offers a reliable strength-to-weight ratio for structural applications under EN 10025-3.

Its weight is calculated using the formula Weight (kg) = Length (m) × Width (m) × Thickness (m) × 7850, enabling precise design and logistics for bridges, cranes, and frameworks.

Gangsteel’s inventory supports thicknesses from 6–200 mm, with global delivery in 7-30 days and certifications like EN 10204 3.1/3.2.

Compared to S460N, S355N’s lower yield strength and similar density make it a cost-effective choice for moderate-load structures in temperate climates.