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iron ingot weight is a quantity used to calculate the amount of iron needed to craft a given item. Iron ingots are created by processing Iron Ore using a Refinery or disassembling components that contain iron. Iron is a relatively soft metal with a Mohs hardness of 4, though it can be strengthened by the addition of impurities, most importantly carbon. This process produces steel which can be much harder than iron.
Iron is the fourth most abundant element in our planet, and it exists in nature mainly in various oxides, representing iron ores. Unlike copper, which can be extracted from its native state, pure iron is not available in the Earth’s crust because it readily oxidizes, becoming rusty and unusable. It is therefore usually obtained by smelting iron ore in blast furnaces with a high-carbon fuel such as coke and a reductant such as limestone, to produce pig iron. This is then cast into ingots, either to be sold as merchant pig iron or to supply integrated steel mills for use in the manufacture of steel and other ferrous castings.
Foundry pig iron is also sometimes cast into ingots and used for the manufacture of ductile iron (also known as nodular or spheroidal graphite – SG) steel, which has better strength, toughness and corrosion resistance than grey or basic pig iron. Ingots may have a tapered shape to facilitate even cooling, and they are often stamped with a mark showing the company which produced them, and possibly where. Ingots are the most refined form of metallic material, and they can be used as a raw material for the production of semifinished and finished casting products by a variety of cold/hot working, cutting and milling operations.