Corrosion Resistant Zinc-Aluminum-Magnesium Steel Coil with Self-Healing Coating and Environmentally Friendly Zn-Al-Mg Alloys
- Zn Mg Al Steel provides 5~8 times the corrosion resistance of standard galvanized steel plate flat surfaces
- Unique cut-off coating with self-healing anti-corrosion performance
- Excellent acid and alkali corrosion resistance, capable of replacing stainless steel in some applications
- Superior abrasive resistance compared to GI and GL coatings
- Stable machinability under severe conditions, suitable as a replacement for hot-dip galvanized plate
- Environmentally friendly product containing no heavy metal ions, meeting ROHS standards
Zn Mg Al Steel offers better anti-corrosion performance than GI and GL coatings, with excellent cutting port protection and welding performance. It can serve as a viable replacement for stainless steel in certain applications.
Zinc Aluminum Magnesium steel is a new type of high-corrosion-resistant coated steel. The composite effect of added elements further improves corrosion inhibition. It features excellent processing properties under severe conditions (stretching, bending, etc.), with high coating hardness and superior damage resistance. Compared to ordinary galvanized products, it achieves better corrosion resistance with smaller plating adhesion. This super corrosion resistance enables it to replace stainless steel or aluminum in various fields.
| Product Name | Zn-Al-Mg Alloys Steel Coil |
| Grade | DD51D+ZM, S350GD+ZM, DX51D+ZM |
| Standard | AISI, ASTM, BS, DIN, JIS, GB, JIS A653 |
| Thickness | 0.4mm - 6.0mm (customizable) |
| Width | 900mm - 1500mm |
| Coil Weight | 5 - 14 Tons |
| Zinc Coating | 40 - 600 g/m² |
| Place of Origin | China |
It is widely used for metal roofing, siding, pre-engineered metal buildings, HVAC ductwork, automotive parts, and appliances.
While highly durable, it is generally not recommended for use within 1,500 feet (approx. 500m) of severe marine environments where salt spray is constant, as salt can accelerate the breakdown of the aluminum oxide layer.
No. Contact with copper or lead (e.g., copper pipes or lead flashing) causes galvanic corrosion, which will rapidly destroy the coating. Use plastic or stainless steel accessories instead.
Generally, no. The chemicals in modern pressure-treated wood (like ACQ) are highly corrosive to Galvalume. Use a barrier tape or a physical separator between the wood and the metal.
It is not recommended for the interior of animal confinement buildings (like pig barns) because the ammonia vapors from animal waste react poorly with the coating.
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