Source : Metal Casting India
Cast iron is an iron, carbon and silicon alloy that has been melted and poured into a mould to form a shape. The Chinese developed furnaces for making cast iron around 500 BC. These furnaces were hot enough to melt cast iron so that it could be poured into moulds to make many products including weapons, jewellery and cast iron cookware.The structure of cast iron, which is graphite flakes in a relatively pure iron matrix, has several useful properties. Firstly, the metal expands slightly on solidifying as the graphite precipitates, resulting in sharp, well defined castings. The graphite content also offers good corrosion resistance, particularly when compared to mild steel. Graphite acts as a lubricant, improving wear resistance.Typical Applications for Cast Iron Castings:
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