Is galvanized steel rust proof?
Galvanized steel takes a long time to rust, but it will eventually rust. This type is carbon steel that has been galvanized or coated with a thin layer of zinc. The zinc acts as a barrier preventing oxygen and water from reaching the steel, providing advanced corrosion protection.
The zinc coating of hot-dipped galvanized steel will last in the harshest soil is 35 to 50 years and in less corrosive soil 75 years or more. Although humidity affects corrosion, temperature itself has less of an impact.
| Item name | SGCC HDGI gi coil z90 z120 hot dipped galvanized steel coils | ||
| Grade | DX51D+Z | S250GD+Z | |
| SGCC | DX52D+Z | S280GD+Z | |
| SGCD | DX53D+Z | S350GD+Z | |
| SGCE | DX54D+Z | S550GD+Z | |
| DX56D+Z | |||
| Thickness | 0.12 ~ 3.00 mm (cold rolled) | ||
| 1.20 ~ 4.60 mm (Hot-rolled ) | |||
| Width | 10 - 600 mm (strip) | ||
| 600 - 1250 mm (coil) | |||
| Tolerance | Thickness: ±0.01 mm | ||
| Width: ±2 mm | |||
| Coil ID | 508 mm - 610 mm | ||
| Coil weight | 3 - 8 ton or as client requirement. | ||
| Zinc coating | 30g - 275g / m2 | ||
| Spangle | Big spangle,Regular spangle,Mini spangle,Zero spangle | ||
| Surface treatment | Oil,Passivation, Chromated, Skin-passed, Anti-finger Print | ||
| HS code | code 72104900 | ||
| Application | Widely used in road, railway, civil construction, water conservancy construction; all kinds of machinery, electrical appliances, window protection and aquaculture, etc. | ||
| Package | Standard export package (Plastic film in the first layer,second layer is Kraft paper. Third layer is galvanized sheet) | ||
| Delivery time | Within 15 workdays after deposit received | ||
| Remarks | Insurance per to Contract terms; MTC will be handed on with shipping documents; We accept the third party certificatation test. |
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