Bessemer pig

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Revision as of 03:38, 7 November 2006 by 71.250.2.240 (talk) (Based on Glossary of Bridge Terminology; Chapter LXXX of J.A.L. Waddell's Bridge Engineering (New York: Wiley, 1916))
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Pig iron used in making Bessemer steel or acid open-hearth steel, in which the silicon content ranges from one per cent to two per cent; phosphorus not over one-tenth of one per cent; and sulphur not over one-half of one per cent.