Copper ASTM B1, B2, B3, B152, B124, R133 Contains Copper 99.9% -used for Electrical Equipment and Roofing Screen. Gilding Metal ASTM B36 Cu-95% + Zinc 5% Coins and Bullet Jackets. Cartridge Brass ASTM B14, B19, B36, B134, B135 Cu 70% + Zinc 30% -used for Cold Working Radiators, Hardware Electrical, Drawn Cartridge Cases. Phosphor Bronze ASTM B103, B139, and B159 Cu 89.75%+ Sn-10% + P-0.25% -used for high fatigue strength Spring quality and Worm Gears.
