Zinc is a shiny metal capable of being alloyed with various other metals. One of these is iron. Zinc-iron resembles zinc in colour and other characteristics and both are popular plating metals. Yet, although we perform both types of plating at DeKalb Metal Finishing, some clients actually prefer, zinc-iron plating. They select it more often than straight zinc plating because its properties are more advantageous in several ways including ease of further finishing.
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Zinc-iron is an alloy of two metals: zinc and iron. It is the result of zinc plating with the addition of an iron alloy. The content of iron resides between 0.3 and 1.0%. At DeKalb Metal Finishing, our zinc-iron deposits typically contain 0.4 to 0.8% by weight.
The purpose of such product is to improve the existing properties of zinc. Zinc-iron plating works with the substrate metal component to further enhance and improve the properties of the base metal. This gives zinc-iron plated materials some advantages over a non-plated component
Why do we use it:-
One important advantage of applying a zinc-iron layer to a substrate is improved corrosion resistance. Since zinc has a high resistance, by alloying zinc and iron to plate an item, you are increasing its resistance between 25 and 50%. At the same time, zinc-iron plating provides the substrate layer with other benefits, which include:
- Solid weldability
- Good ductility
- Excellent surface appearance
- Even distribution over even edged and irregular components
- Superior lubricity
- High level of hardness
- 500+ hours of salt spray resistance
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