Difference between galvanized sheet and aluminum sheet.

Update:Jun 22,2026
Summary:Galvanized sheet is steel-based galvanized, and aluminum sheet is aluminum-based. There are obvious differences between them in weight, corrosion res......

Galvanized sheet is steel-based galvanized, and aluminum sheet is aluminum-based.

There are obvious differences between them in weight, corrosion resistance, cost and strength. Simply put, aluminum plate is lighter and more corrosion-resistant but expensive, and galvanized plate is harder, cheaper and heavier.

Material and weight difference Different base materials: the essence of galvanized sheet is that the surface of steel plate is coated with zinc and the inside is iron; The aluminum plate is made of aluminum or aluminum alloy, and the inside is aluminum. Disparity in weight: Aluminum plate has a low density, and its weight is only about one third of that of galvanized plate under the same volume, which is suitable for scenes that need to reduce the load (such as bridges and high-rise buildings).

Hardness and strength: galvanized sheet has high hardness, difficult deformation and strong impact resistance; Aluminum plate is relatively soft, so it should be prevented from extrusion deformation during transportation and installation, except for high-strength aluminum alloy.