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What is the difference between coated and uncoated sheet metal?

Update:22-02-2020
Summary:

Sheet metal coated parts: The coated part of any kind o […]

Sheet metal coated parts:

The coated part of any kind of metal sheet or strip metal is nothing but non-corrosive metal.
By coating, we can improve the corrosion resistance of the corresponding material, which increases the service life of the material.

Galvanized steel:-Galvanized steel sheet, indicating that it has been coated with electrolytic zinc.
Galavanneled steel sheet:-Galvannealed coating offers stripping / compared to traditional galvanization, in addition to foaming of the coating, it also improves more durable corrosion resistance.
Tin coating: It is widely used in food and some can be used for painting.

Uncoated shoelace material:

Fewer metals cannot be coated due to weight issues. However, for example, Al-Cu alloys or Cu alloys have no need for coating because they have corrosion resistance, and stainless steel does not need to be coated.

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