Читать книгу Henley's Formulas, Recipes and Processes (Applied Chemistry) - Various - Страница 196

Alloys which fulfill the requirements of the medalist, and capable, therefore, of reproducing all details, are the following:

III.—A soft alloy suitable to take impressions of woodcuts, coins, metals, engravings, etc., and which must melt at a low degree of heat, is made out of bismuth, 3 parts; tin, 1 ¹/₂ parts; lead, 2 ¹/₂ parts; and worn-out type, 1 part.