DX54D Galvanized Steel
DX54D Galvanized Steel Coil and Sheet is widely traded in international markets due to its compliance with EN 10346 standards, excellent formability, and dependable corrosion resistance. For global buyers, understanding export standards, quality testing, and supplier reliability is essential to ensuring consistent performance.
DX54D galvanized steel coil and sheet are manufactured for applications requiring deep drawing and high surface quality. As export-oriented products, they must meet strict dimensional tolerances, mechanical performance criteria, and coating standards to satisfy buyers in different regions.
Export Quality Testing Standards
|
Test Item |
Applicable Standard |
|---|---|
| Tensile and Elongation Test | EN 10002 |
| Zinc Coating Thickness | EN ISO 1460 |
| Surface Quality Inspection | EN 10143 |
| Dimensional Tolerance | EN 10143 |
Table 1: Quality Testing Standards for DX54D Galvanized Steel
These tests ensure that DX54D galvanized steel coil and sheet maintain consistent performance across shipments.
Dimensional and Coating Tolerances
| Parameter | Tolerance |
|---|---|
| Thickness | ±0.02 mm |
| Width | ±5 mm |
| Zinc Coating Weight | ±10% |
Table 2: Standard Tolerances for Export DX54D Galvanized Steel
Strict tolerance control is especially important for automated production lines, where even small deviations can affect efficiency.
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 |
Spangle
The "spangle" is a type of surface morphology found on hot-dip galvanized (pure zinc-coated) steel coils. When the steel strip passes through the zinc pot, its surface becomes coated with liquid zinc. As the zinc layer naturally solidifies, zinc grains nucleate and grow, forming what is known as "spangle."
The name "spangle" comes from the fact that the complete zinc crystals display a snowflake-like pattern, which is quite vivid and descriptive.
Packaging and Transportation Considerations
DX54D galvanized steel coil and sheet must be properly packaged for export to prevent moisture damage and mechanical deformation. Common practices include moisture-proof wrapping, steel strip reinforcement, and eye-to-wall or eye-to-sky coil positioning depending on customer requirements.
Beyond price, buyers should evaluate suppliers based on production experience, quality control systems, export documentation capability, and long-term service reliability. A supplier with proven international cooperation experience significantly reduces procurement risks.
Since its establishment in 2008, GNEE STEEL has focused on supplying high-quality DX54D galvanized steel coil and sheet to international markets. Serving over 8000 customers in more than 160 countries with a professional workforce of 200+ employees, GNEE STEEL combines strict quality control, stable production capacity, and efficient logistics support, making it a reliable partner for global steel buyers seeking consistent and compliant DX54D galvanized steel products.
