Galvanized Steel Coil
Need verified data on the chemical composition of S550GD galvanized steel coil? You've come to the right place. As a direct factory with 20 years of structural steel experience, GNEE Steel provides transparent testing results for the Chemical Composition Of S550GD Galvanized Steel Coil-plus factory prices and compliance documentation.
Galvanized Steel Coil
S550GD galvanized steel coil is a high-strength, corrosion-resistant material for structural applications. It's defined by EN 10346, which specifies both chemical composition and performance requirements.
Compared to other galvanized grades (S350GD, S420GD), S550GD's composition is optimized for higher strength, making it suitable for heavy-load projects like bridge girders and industrial machinery frames.
Testing Methods for Chemical Composition Of S550GD Galvanized Steel Coil
GNEE Steel uses advanced testing methods to verify the Chemical Composition Of S550GD Galvanized Steel Coil, ensuring accuracy and compliance:
| Testing Method | Equipment Used | Elements Tested | Accuracy Level |
|---|---|---|---|
| Optical Emission Spectrometry (OES) | SpectroLab M10 | C, Mn, Si, P, S, Al, N | ±0.001% for most elements |
| X-Ray Fluorescence (XRF) | XEPOS | Mn, Si, P, S, Al | ±0.005% |
| Combustion Analysis | CS-844 | C, S | ±0.0001% |
| Inert Gas Fusion | ONH-836 | O, N, H | ±0.1 ppm |
Every production batch undergoes OES testing as the primary method, with XRF verification for critical orders.
Compliance Certifications for Chemical Composition
The Chemical Composition Of S550GD Galvanized Steel Coil from GNEE Steel meets multiple international standards, supported by official certifications:
| Standard | Key Requirements for Composition | Certification Type |
|---|---|---|
| EN 10346 | C≤0.18%, Mn≤2.00%, Si≤0.50%, P≤0.030%, S≤0.025% | EN 10204 3.1 Certificate |
| ISO 683-18 | Same as EN 10346 for high-strength structural steel | ISO 9001 Quality System Certificate |
| ASTM A653 | C≤0.25%, Mn≤2.00%, P≤0.040%, S≤0.050% (compliant with stricter EN limits) | ASTM Material Certificate |
| CE Marking | Compliance with EN 10346 for structural use | CE Declaration of Performance |
Customers receive full certification documents with every order.
Typical vs. Standard Chemical Composition Values
GNEE Steel's production consistently exceeds minimum standards. Here's the comparison for Chemical Composition Of S550GD Galvanized Steel Coil:
| Element | EN 10346 Max (%) | GNEE Steel Typical Value (%) | Advantage of Typical Value |
|---|---|---|---|
| Carbon (C) | 0.18 | 0.15-0.17 | Better weldability while maintaining strength |
| Manganese (Mn) | 2.00 | 1.80-1.95 | Optimal strength without excessive hardness |
| Silicon (Si) | 0.50 | 0.35-0.45 | Improved coating adhesion without brittleness |
| Phosphorus (P) | 0.030 | 0.015-0.025 | Enhanced low-temperature toughness |
| Sulfur (S) | 0.025 | 0.010-0.020 | Superior ductility and forming properties |
| Aluminum (Al) | 0.020 | 0.018-0.022 | Consistent grain refinement |
This tighter control ensures more predictable performance across projects.
Size Range of S550GD Galvanized Steel Coil
Compliant composition needs matching size options. GNEE Steel offers S550GD Galvanized Steel Coil in:
| Thickness | Width Options | Coil Weight Range | Application Suitability |
|---|---|---|---|
| 0.8mm-2.0mm | 900mm, 1000mm, 1250mm | 5-12 tons | Roofing, light framing |
| 2.1mm-5.0mm | 1000mm, 1250mm, 1500mm | 8-18 tons | Medium-load structures |
| 5.1mm-12.0mm | 1250mm, 1500mm, 1800mm | 12-25 tons | Heavy machinery, bridge components |
Custom widths up to 2000mm are available for bulk orders.
Verified testing and strict compliance ensure the Chemical Composition Of S550GD Galvanized Steel Coil from GNEE Steel meets the highest standards. Our advanced testing methods and tighter composition control deliver reliable, high-performance coils for your structural projects.
Don't compromise on material quality-choose certified S550GD coils. Contact GNEE Steel today to request detailed testing reports and a competitive quotation for S550GD Galvanized Steel Coil!
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Galvanized Steel Coil