Abstract
FOR some time past the Shelton Iron, Steel, and Coal Co., of Stoke-on-Trent, has been manu facturing a commercial iron of unusual purity in the basic open-hearth furnace. This iron is guaranteed to be 99-84 per cent, pure, and has been placed on the market under the trade name “Armco Iron.” It differs from wrought-iron in that it has been melted and cast, and thus contains much less slag, and from mild steel in that its carbon content is so low that no pearlite is present. It has been found, however, to possess a peculiar property which militates against its practical usefulness, viz. the property of a char acteristic red-shortness, or brittlenes's, when subjected to mechanical treatment between certain limits of temperature. The reason for this peculiar behaviour, which is not shared by other forms of commercial iron and mild steel of high quality, has been investi gated by Messrs. Brooke and Hunting, and their pre liminary results were communicated in an interesting not to the recent meeting of the Iron and Steel Institute.
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CARPENTER, H. A Commercial Iron of Unusual Purity. Nature 100, 134–135 (1917). https://doi.org/10.1038/100134b0
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DOI: https://doi.org/10.1038/100134b0