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How to tell the difference the stainless steel screws, galvanized and nickel plated screws
How to tell the difference the stainless steel screws, galvanized and nickel plated screws from the appearance?
Stainless steel screws are made of stainless steel. The color of stainless steel is mainly an alloy of iron and carbon, so the color is close to that of iron; the surface of galvanized screws is galvanized with white zinc, color zinc, black zinc, etc., so the color of galvanized screws is generally White, colorful, black; the color of nickel-plated screws is related to nickel, and generally presents a very bright silver. Other ways to distinguish between stainless steel screws, zinc-plated screws and nickel-plated screws: distinguish with oxidizer: metallic nickel has a strong passivation ability, and a very thin passivation layer can be quickly formed on the surface during electroplating, so the surface of nickel-plated screws There is a passivation film. The galvanized surface is a layer of zinc. There is nothing on the surface of the stainless steel. It can be distinguished by strong oxidizing agent. It can be distinguished by strong acid and strong alkali. Zinc screws corrode quickly
I believe everyone has a simple understanding of how to distinguish between stainless steel screws, galvanized and nickel-plated screws. I hope it will be helpful to people who want to understand screws and want to buy screws.
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