A Treatise on the Metallurgy of Iron: Containing Outlines of the History of Iron Manufacture, Methods of Assay, and Analyses of Iron Ores, Processes of Manufacture of Iron and Steel, Etc., Etc

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Virtue & Yorston, 1868 - 406 páginas
 

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Página 37 - PROPERTIES. 1. Malleable iron . 0-25 Is not sensibly hardened by sudden cooling. 2. Steely iron 0-35 Can be slightly hardened by quenching. 3. Steel 0-50 Gives sparks with a flint when hardened. 4.

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