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Fontainemoreau's Bronzes

Zinc predominates in these bronzes, with copper, cast iron, and lead in varying proportions, according to the quality desired. It is an excellent alloy for casting into metal moulds, the metal being rendered more homogeneous by that mode of casting. The crystalline nature of the zinc is changed by the addition of these alloys, being hard and close-grained, like steel, although it yields to the file better than either copper or zinc. The proportions of those which have been found best for general use are as follows:

Zinc. Copper. Lead. Cast Iron. 90 8 1 1 91 8 1 92 8 92 7 1 97 3 97 2 1/2 1/2 99 1 99 1/2 1/2 See BRONZE; ALLOY; COPPER; ZINC.