S320GD galvanized steel
Need a complete technical reference for S320GD galvanized steel with Z180 coating for your project specifications? Unlike basic suppliers, GNEE provides detailed technical datasheets tailored to engineering and procurement needs.
We offer S320GD+Z180 galvanized steel with full technical certification, including customized thickness (0.5-12.0mm), width (up to 3000mm), and batch-specific test reports-ensuring compliance with your technical requirements.
Galvanized steel in sheets
Read on for the comprehensive technical data and key properties of S320GD+Z180 galvanized steel to support your design and material selection.
Galvanized steel is carbon steel coated with zinc via hot-dip process to prevent corrosion, widely used in construction, automotive, and industrial applications.
Its technical properties determine suitability for specific uses. S320GD galvanized steel is a high-strength structural grade-with Z180 (180g/m² zinc per side) representing a premium coating weight for enhanced durability in harsh environments.
Chemical Composition of S320GD+Z180 Galvanized Steel
The chemical composition of S320GD+Z180 galvanized steel adheres to EN 10346 standards, ensuring consistent performance:
| Element | Symbol | Content (Max. %) | Test Method | Role in Performance |
|---|---|---|---|---|
| Carbon | C | 0.12 | EN 10036 | Controls strength without reducing weldability |
| Manganese | Mn | 1.60 | EN 10036 | Enhances formability and impact resistance |
| Phosphorus | P | 0.030 | EN 10036 | Minimized to prevent pitting corrosion |
| Sulfur | S | 0.025 | EN 10036 | Reduced to avoid hot cracking during fabrication |
| Silicon | Si | 0.50 | EN 10036 | Improves zinc coating adhesion |
| Aluminum | Al | 0.020 | EN 10036 | Enhances oxidation resistance |
| Titanium | Ti | 0.22 | EN 10036 | Refines grain structure for uniform properties |
| Niobium | Nb | 0.09 | EN 10036 | Stabilizes heat-affected zones in welding |
Mechanical Properties of S320GD+Z180 Galvanized Steel
S320GD+Z180 galvanized steel delivers consistent mechanical performance for structural and fabrication needs:
| Property | Unit | Minimum Value | Test Method | Application Relevance |
|---|---|---|---|---|
| Yield Strength (R<sub>eH</sub>) | MPa | 320 | EN ISO 6892-1 | Ensures structural load capacity |
| Tensile Strength (R<sub>m</sub>) | MPa | 400 | EN ISO 6892-1 | Resists breaking under stress |
| Elongation (A<sub>80mm</sub>) | % | 22 | EN ISO 6892-1 | Enables forming without cracking |
| Bend Test | - | 180° (d=2t) | EN ISO 7438 | Verifies coating and material ductility |
| Impact Energy (0°C) | J | 27 | EN ISO 148-1 | Ensures toughness in cold environments |
| Hardness (HV 0.5) | HV | ≤175 | EN ISO 6507-1 | Prevents tool wear during processing |
Zinc Coating Properties of S320GD+Z180
The Z180 coating is a critical feature of S320GD+Z180 galvanized steel, providing superior corrosion protection:
| Coating Property | Specification | Test Method | Performance Impact |
|---|---|---|---|
| Coating Weight (per side) | 180g/m² (Min.) | EN ISO 1460 | Extends service life in harsh environments |
| Coating Thickness | ~25μm (Min.) | EN ISO 2808 | Ensures uniform corrosion protection |
| Adhesion | Grade 0 | EN ISO 2819 | Prevents coating peeling during fabrication |
| Corrosion Resistance | >1200 hours (no red rust) | ASTM B117 | Withstands salt spray exposure |
| Surface Appearance | Uniform, no bare spots | EN 10169 | Ensures consistent aesthetic and protection |
Size and Dimensional Tolerances of S320GD+Z180
S320GD+Z180 galvanized steel is available in standard and customized sizes with tight tolerances:
| Product Form | Thickness Range | Thickness Tolerance | Width Range | Width Tolerance | Length Range | Length Tolerance |
|---|---|---|---|---|---|---|
| Coils | 0.5-10.0mm | ±0.05mm | 600-3000mm | ±2mm | 500-3000m | ±50mm |
| Sheets | 0.8-12.0mm | ±0.08mm | 800-2500mm | ±3mm | 1000-12000mm | ±5mm |
| Cut-to-Size | 1.0-10.0mm | ±0.05mm | Custom | ±2mm | Custom | ±3mm |
All dimensions comply with EN 10151 standards, ensuring compatibility with standard fabrication processes.
This technical data sheet provides comprehensive specifications for S320GD+Z180 galvanized steel, covering chemical composition, mechanical properties, coating performance, and dimensional tolerances.
These properties make it ideal for demanding structural, automotive, and industrial applications requiring both strength and durability.
At GNEE, we supply S320GD+Z180 galvanized steel with full technical certification. Contact us today to request a batch-specific technical datasheet and a customized S320GD galvanized steel quotation for your project.
- Zinc Thickness
| Zinc Coating Grade | Zinc Coating (g/m²) | Corrosion Resistance | Typical Applications | Remarks |
| Z30 | 30 | Very low | Indoor parts, home appliance inner panels, ventilation ducts | Not suitable for outdoor use |
| Z60 | 60 |
Low |
Indoor structures, temporary facilities | Low cost |
| Z80 | 80 | Medium | Light steel structures, base metal for PPGI | Good cost performance |
| Z100 | 100 | Medium | PPGI, fencing, general construction
|
Common export grade |
| Z120 | 120 | Medium-High |
|
Longer service life |
| Z140 | 140 | Medium-High | Industrial buildings, agricultural facilities | Suitable for outdoor use |
| Z180 | 180 | High | Long-term outdoor structures, equipment housings
|
Recommended for outdoor use |
| Z200 | 200 | Very high | Humid environments, heavy structures
|
Higher cost |
| Z275 | 275 | Excellent
|
Coastal areas, solar mounting systems, high-corrosion environments | High standard |
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