 |
Galvanized Steel/sheet metal coil/gi coil/hot rolled steel coil
Product Details:
| Place of Origin: | China |
| Brand Name: | bluesteel |
| Certification: | SGS,CE |
Payment & Shipping Terms:
| Minimum Order Quantity: | 25T |
|---|---|
| Price: | 500-700 |
| Packaging Details: | about 5T/one roll |
| Delivery Time: | 30days |
| Payment Terms: | T/T |
| Supply Ability: | 1000T/per month |
|
Detail Information |
|||
| High Light: | galvalume steel coil,galvanised steel coil |
||
|---|---|---|---|
Product Description
Galvanized Steel/sheet metal coil/gi coil/hot rolled steel coil
The galvanized steel refers to a surface treatment technique that coats a layer of zinc on the surface of a metal, alloy or other material for aesthetics, rust prevention, and the like. The main method used is hot-dip galvanizing. Zinc is easily soluble in acid and soluble in alkali, so it is called an amphoteric metal. Zinc hardly changes in dry air. In moist air, a dense zinc carbonate film is formed on the zinc surface. In the atmosphere containing sulfur dioxide, hydrogen sulfide and marine, the corrosion resistance of zinc is poor, especially in the atmosphere containing high temperature and high humidity containing organic acid, the zinc coating is easily corroded. The standard electrode potential of zinc is -0.76V. For steel substrates, zinc coating is an anodic coating. It is mainly used to prevent corrosion of steel. Its protective performance has a great relationship with the thickness of the coating. After passivation, dyeing or coating of the photoresist, the zinc coating can significantly improve its protection and decorative properties.