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Cast iron is a class of iron–carbon alloys with a carbon content of more than 2% and silicon content around 1–3%. [1] Its usefulness derives from its relatively low melting temperature.
cast iron, an alloy of iron that contains 2 to 4 percent carbon, along with varying amounts of silicon and manganese and traces of impurities such as sulfur and phosphorus. It is made by reducing iron ore in a blast furnace.
Cast iron is one of the oldest ferrous metals used in construction and outdoor ornament. It has a relatively high carbon content of 2% to 5%. It is primarily composed of iron (Fe), carbon (C) and silicon (Si), but may also contain traces of sulphur (S), manganese (Mn), and phosphorus (P).
Cast iron is a group of iron-carbon alloys with a carbon content of more than 2 to 4 percent. In addition, varying amounts of silicon from 1 to 3% by weight and manganese as well as traces of impurities such as sulfur and phosphorus. Cast iron is made by reducing Iron Ore in a Blast Furnace.
In materials engineering, cast irons are a class of ferrous alloys with carbon contents above 2.14 wt%. The difference is that cast irons can take advantage of eutectic solidification in the binary iron-carbon system, therefore cast irons are an ideal material for sand casting into complex shapes.
What Is Cast Iron? The cast-iron manufacturing process originated in China in the sixth century BCE and has barely changed since. Cast-iron skillets are made by pouring molten metal into a sand mold, which is broken apart when the pan cools, allowing the pan to emerge in one piece, handle included.
Cast iron is made by re-melting pig iron, often along with substantial quantities of scrap iron and scrap steel and taking various steps to remove undesirable contaminants such as phosphorus and sulphur.