Brass H59 is a 60/40 copper-zinc brass with high strength and hardness, good hot-forming behavior, and fair machinability. It is a lower-cost choice for hardware, fittings, and general mechanical parts.
Brass H59 is a common copper-zinc brass (about 57–60% copper, balance zinc, lead at most 0.5%), roughly equivalent to CuZn40 (CW509L) and C28000.
Brass H59 is a good option for hot-forged parts, nuts and bolts, hardware, and architectural profiles where cost matters more than machinability.