Galvanized Steel Coil
Looking for detailed Mechanical Properties Of S550GD for your structural project? You've come to the right place. As a direct factory with 20 years of structural steel experience, GNEE Steel provides comprehensive data on Mechanical Properties Of S550GD for our S550GD Galvanized Steel Coil-plus factory prices and 2026 delivery timelines.
Galvanized Steel Coil
S550GD galvanized steel coil is a high-strength structural material with a hot-dip zinc coating. It belongs to the EN 10346 standard series, designed for load-bearing applications like bridge components, high-rise framing, and heavy machinery.
Common galvanized steel grades include S280GD, S350GD, and S420GD. S550GD stands out for its superior mechanical properties, especially yield strength (≥550MPa), making it ideal for demanding projects.
Core Mechanical Properties Of S550GD for Galvanized Steel Coil
The Mechanical Properties Of S550GD define its performance in structural applications. Below is the standard data for S550GD Galvanized Steel Coil per EN 10346:
| Mechanical Property | Standard Requirement | Test Method | Unit |
|---|---|---|---|
| Yield Strength (ReH) | ≥550 | EN ISO 6892-1 | MPa |
| Tensile Strength (Rm) | 600-730 | EN ISO 6892-1 | MPa |
| Elongation (A80mm) | ≥12 | EN ISO 6892-1 | % |
| Impact Energy (KV) | ≥27 | EN ISO 148-1 | J |
| Bend Test Result | Pass (180° bend) | EN ISO 7438 | - |
| Hardness (HB) | 180-220 | EN ISO 6506-1 | HB |
GNEE Steel tests every production batch to ensure these properties are met or exceeded.
How Mechanical Properties Of S550GD Support Structural Safety
The Mechanical Properties Of S550GD are critical for structural safety, as they determine how the steel handles loads and environmental stress:
- Yield Strength (≥550MPa): Prevents permanent deformation under heavy loads, ensuring structural stability for bridges and high-rises.
- Tensile Strength (600-730MPa): Resists breaking under tension, making it suitable for suspension components in infrastructure projects.
- Elongation (≥12%): Allows slight deformation without cracking, absorbing energy during seismic activity or wind loads.
- Low-Temperature Impact Energy (≥27J at -40°C): Ensures performance in cold climates, avoiding brittle failure in winter conditions.
These properties make S550GD Galvanized Steel Coil a reliable choice for safety-critical applications.
Chemical Composition Supporting Mechanical Properties Of S550GD
The Mechanical Properties Of S550GD are directly influenced by its chemical composition. Here's how elements contribute to performance:
| Element | Content (Max, %) | Role in Mechanical Properties |
|---|---|---|
| Carbon (C) | 0.18 | Enhances yield and tensile strength |
| Manganese (Mn) | 2.00 | Boosts tensile strength and hardenability |
| Silicon (Si) | 0.50 | Improves strength without reducing ductility |
| Phosphorus (P) | 0.030 | Controls brittleness to maintain impact energy |
| Sulfur (S) | 0.025 | Minimized to preserve elongation and ductility |
| Aluminum (Al) | 0.020 | Refines grain structure for better impact toughness |
GNEE Steel precisely controls this composition to ensure consistent mechanical performance.
Standard Sizes of S550GD Galvanized Steel Coil
To match its mechanical properties with project needs, GNEE Steel offers S550GD Galvanized Steel Coil in versatile sizes:
| Thickness | Width Range | Inner Diameter | Coil Weight | Zinc Coating Weight |
|---|---|---|---|---|
| 0.8mm-3.0mm | 900mm-1250mm | 508mm | 5-15 tons | 60-180 g/m² |
| 3.1mm-6.0mm | 1000mm-1500mm | 508mm | 8-20 tons | 80-220 g/m² |
| 6.1mm-12.0mm | 1250mm-1800mm | 508mm | 10-25 tons | 100-275 g/m² |
Custom sizes are available for bulk orders (minimum 5 tons).
The Mechanical Properties Of S550GD-superior yield strength, tensile strength, and impact resistance-make S550GD Galvanized Steel Coil an excellent choice for demanding structural projects. GNEE Steel's strict quality control ensures these properties are consistent across every coil.
Whether you're building bridges, high-rises, or heavy machinery, our S550GD coils deliver reliable performance. Contact GNEE Steel today to get a detailed mechanical property report and quotation for S550GD Galvanized Steel Coil!
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Galvanized steel coil packaging