Galvanized Steel Coil
Wondering why S550GD is preferred for structural projects? You've come to the right place. As a direct factory with 20 years of experience, GNEE Steel explains how Mechanical Properties Of S550GD make S550GD Galvanized Steel Coil the top choice-plus factory prices and 2026 availability.
S550GD galvanized steel coil is a high-strength, corrosion-resistant material for load-bearing applications. It's part of the EN 10346 grade series, widely used in construction, infrastructure, and industrial machinery.
Compared to lower grades like S350GD (yield strength ≥350MPa) or S420GD (≥420MPa), Mechanical Properties Of S550GD offer 26-43% higher strength, making it suitable for heavier loads.
Galvanized Steel Coil
Mechanical Properties Of S550GD vs. Lower Galvanized Grades
The Mechanical Properties Of S550GD outperform lower grades, justifying its use in demanding projects. Here's the comparison for galvanized steel coils:
| Mechanical Property | S550GD | S420GD | S350GD | Advantage of S550GD |
|---|---|---|---|---|
| Yield Strength (ReH) | ≥550 MPa | ≥420 MPa | ≥350 MPa | 31% higher than S420GD; 57% higher than S350GD |
| Tensile Strength (Rm) | 600-730 MPa | 500-630 MPa | 450-570 MPa | 20% higher than S420GD; 33% higher than S350GD |
| Elongation (A80mm) | ≥12% | ≥13% | ≥14% | Slightly lower but still sufficient for structural flexibility |
| Impact Energy (KV) | ≥27 J (-40°C) | ≥27 J (-40°C) | ≥27 J (-40°C) | Equal low-temperature performance |
| Hardness (HB) | 180-220 | 160-200 | 140-180 | Higher wear resistance for heavy-use components |
This makes S550GD Galvanized Steel Coil ideal for projects where strength is prioritized.
Application-Specific Benefits of Mechanical Properties Of S550GD
Each Mechanical Property Of S550GD addresses specific structural needs, making S550GD Galvanized Steel Coil versatile across industries:
1. Bridge Construction
Yield Strength (≥550MPa): Supports heavy traffic loads without deformation.
Tensile Strength (600-730MPa): Resists tension in bridge girders and suspension cables.
Impact Energy (≥27J): Withstands dynamic loads from vehicles and weather.
2. High-Rise Building Framing
High Yield Strength: Reduces material usage (thinner coils for same load), cutting construction costs.
Elongation (≥12%): Provides flexibility during seismic activity, enhancing safety.
3. Heavy Machinery Manufacturing
Hardness (180-220HB): Resists wear from moving parts in excavators and cranes.
Tensile Strength: Handles mechanical stress from lifting heavy loads.
4. Transmission Towers
Low-Temperature Impact Energy: Performs reliably in cold regions.
Strength-to-Weight Ratio: Reduces tower weight while maintaining stability.
Testing Mechanical Properties Of S550GD at GNEE Steel
GNEE Steel uses rigorous testing to verify Mechanical Properties Of S550GD for every S550GD Galvanized Steel Coil:
| Test Type | Equipment Used | Testing Frequency | Acceptance Criteria |
|---|---|---|---|
| Tensile Test | Universal Testing Machine (UTM) | 1 sample per 10 tons | Meets EN 10346 strength and elongation requirements |
| Impact Test | Charpy Impact Tester | 1 sample per 20 tons | ≥27 J at -40°C |
| Bend Test | Bend Testing Machine | 1 sample per 15 tons | 180° bend without cracking |
| Hardness Test | Brinell Hardness Tester | 3 points per coil | 180-220 HB |
Test reports are provided with every order for transparency.
2026 Pricing of S550GD Galvanized Steel Coil
The Mechanical Properties Of S550GD come at a competitive price. 2026 pricing from GNEE Steel:
Base Price: $890-$990 per ton (ex-factory, thickness 0.8-3.0mm)
- Price Factors:
Thickness: Coils over 6.0mm cost 13-19% more (higher material for heavy loads)
Coating Weight: Heavy zinc coating (200+ g/m²) adds 6-9% (extra corrosion protection)
Order Quantity: Bulk orders (50+ tons) qualify for 7-10% discounts
Delivery Time: Standard lead time 10-15 days; rush orders (7 days) incur 12% premium
The Mechanical Properties Of S550GD-superior strength, wear resistance, and low-temperature performance-make S550GD Galvanized Steel Coil the ideal choice for demanding structural projects. Its advantages over lower grades justify the investment in long-term safety and durability.
GNEE Steel ensures every S550GD coil meets or exceeds mechanical property standards. Reach out to GNEE Steel now to discuss how S550GD's properties fit your project and get a personalized quotation!
Click here to get your 2026 latest price list !
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