ASTM B121/B121M-01

Standard Specification for Leaded Brass Plate, Sheet, Strip, and Rolled Bar

This specification covers copper-zinc-lead alloys (leaded brass) plate, sheet, strip, and rolled bar. The following alloys are covered: Nominal Composition, % Copper Alloy Previously Used UNS No. 2 Designation Copper Zinc Lead Iron C33500 2 65.0 34.5 0.5 ... C34000 3 65.0 34.0 1.0 ... C34200 5 65.0 33.0 2.0 ... C35000 ... 61.5 37.4 1.1 ... C35300 4 61.2 37.0 1.8 ... C35340 ... 61.2 36.8 1.8 0.2 C35600 6 61.2 36.3 2.5 ... 1.2 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.