Galvalume Coil

1. Corrosion resistance: galvanized sheet has strong corrosion resistance, and its normal service life can reach 25 years, which is 3-6 times longer than galvanized sheet, and is suitable for stainless steel. The corrosion resistance of galvanized sheet comes from the barrier protection function of aluminum and the dedication protection function of zinc. While zinc sacrifices protection against cut edges, scratches, and scratches on the coating, aluminum forms an insoluble oxide layer that acts as a barrier protection. Al-Zn-coated alloy steel coils have been subjected to more than 20 years of outdoor exposure tests in various atmospheric environments, and it has been proved that the edge protection performance of 55% Al-Zn-coated steel plates is better than that of galvanized steel plates and 5% Al-Zn-coated steel plates. better.

2. Heat resistance: The galvanized steel plate has a high heat reflectivity and is suitable as a roof material. The galvanized steel plate itself has excellent heat resistance and can be used in a high temperature environment up to 315 degrees.

3. Recoatability: (Paint film adhesion) The galvanized sheet can maintain good adhesion with the paint film, and can be directly sprayed with paint or powder without special pre-treatment.

4. Corrosion resistance after painting: After the galvanized sheet itself is partially painted and baked, the corrosion resistance of the unpainted part is slightly reduced. The performance is much better than that of electro-galvanized color zinc, electro-galvanized sheet and hot-dip galvanized sheet.

5. Machinability: (shearing, stamping, spot welding, seam welding) galvanized steel plate has excellent processing performance, can be stamped, sheared, welded, etc., and the coating has good adhesion and impact resistance.

6. Conductivity: The surface of the galvanized sheet is specially waxed to meet the needs of electromagnetic shielding.