Brass and copper are easy to machine and bring useful properties—conductivity, corrosion resistance, and a premium look.
Brass — the machinist favorite
Free-machining brass (e.g., C360) cuts cleanly at high speed with minimal tool wear and a beautiful finish. Ideal for fittings, valves, connectors, and decorative hardware.
Copper — the conductor
Excellent electrical and thermal conductivity drives use in bus bars, heat exchangers, and RF parts. It is gummy to machine—sharp tools and positive rake help control built-up edge.
Design tips
- Allow for slight springback in thin brass sections.
- For copper, avoid tight internal corners that trap swarf.
- Both anneal-soften if heavily worked; plan any hardening into the process.
FAQ
Which machines faster? Brass, noticeably—often at higher feeds than copper.
Are they RoHS-friendly? Lead-free grades are available for regulated products. See the materials guide.