The fastest metal in our shop. C360 runs like butter.

The ~3% lead addition acts as a solid lubricant and creates small chip-breaking discontinuities at the cutting edge. Chips break into small curls rather than stringy long chips. Tools last 3–5× longer than on stainless. Combined with brass's moderate hardness, this makes C360 the defining "machinability = 100%" reference for all other metals.

Not without restriction. Leaded brasses (C360, C353, C377) are restricted from potable water applications in many jurisdictions (USA under California Prop 65, Safe Drinking Water Act). For drinking water fittings, specify low-lead or lead-free brass (C693, C87850 Eco-Brass, C69300). For food contact, similar restrictions apply — use certified food-grade brass.

Yes — brass develops patina when exposed to moisture and air, progressing from bright gold → warm brown → dark brown → verdigris green over years. For outdoor service where bright appearance matters, lacquer or clear coat the brass. For architectural applications where patina is desired (rooftops, building facades), allow the process naturally.

Poorly — zinc in brass vaporizes during welding, creating fumes and porosity. Brazing is the preferred joining method, using copper-based filler at 700–850 °C. For small-scale repair, silver solder (Ag-Cu) works well. Press-fits, threaded connections, and crimping are usually better than welding for brass assemblies.

Bronze (copper-tin alloys like C932 bearing bronze) generally outperforms brass for bearing applications due to tin content providing harder, more wear-resistant surface and better oil retention. Brass is adequate for light-duty bushings and where cost matters; bronze is preferred for loaded bearings, journals, and sleeve bearings.