Chemical Composition Base Element Cu (Copper) Cu (Copper) 82 % Pb (Lead) 0.5 % Sn (Tin) 11 % Zn (Zinc) 3.5 % Balance [none specified] Other elements 3.0 Ni-Sn hardener Other Information Material Class Nonferrous Alloy Country USA Description For gears, bearings; wear resistant. Designation ATLAS NO. 57 Specification Type Manufacturer's Specification Specification Status Obsolete Source Woldman's Engineering Alloys 9th ed. J. Frick Editor, ASM International 2000 Available forms Bearing Similar Alloys Click here to find similar alloys Links Organizations Atlas Pattern & Model Works
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Chemical Composition