About 260|Cartridge
brass (70% copper, 30% zinc). Named for its original use in ammunition cartridge cases. Excellent cold formability — it deep-draws beautifully. Not a machining alloy. In the shop, it’s soft, gummy, and produces long stringy chips. Its strength is in forming: stamped parts, drawn shells, radiator cores, and decorative hardware. Available mainly in sheet, strip, and wire. If someone specs 260 for a machined part, ask why —
C360 machines dramatically better. Compare to C360 (far better machinability) and
230 red brass (higher copper, warmer color, better corrosion resistance).
