Brass CNC Machining
Brass is one of the easiest metals to machine — ideal for complex fittings, valves, connectors, and decorative components with excellent surface finish straight off the machine.
Alloy Grades & Properties
| Grade | Properties | Applications |
|---|---|---|
| C360 (Free-Cutting) | Excellent machinability, good strength | Fittings, fasteners, valves, connectors |
| C260 (Cartridge Brass) | Good formability, corrosion resistant | Electrical terminals, decorative parts, ammunition components |
| C464 (Naval Brass) | Dezincification resistant, marine-grade | Marine hardware, propeller shafts, pump components |
Machining Tolerances
Standard ±0.05mm · Precision ±0.01mm · Threaded fittings per ISO/G thread standards
Surface Finishing Options
- As-machined (excellent surface finish)
- Nickel plating
- Chrome plating
- Polishing & buffing
- Tumbling
Common Applications
- Plumbing and hydraulic fittings
- Electrical connectors and terminals
- Musical instrument components
- Decorative hardware
- Valve bodies and stems
DFM & Machining Tips
- C360 machines 3× faster than steel — ideal for high-complexity small parts
- Achieve Ra 0.8μm as-machined with sharp tools and appropriate speeds
- Design for single-setup turning on Swiss-type lathes for fittings
- Avoid thin walls below 0.5mm — brass is dense and can deform under clamping
Frequently Asked Questions
Is brass suitable for potable water?
Lead-free brass alloys (C69300, C87850) are available for potable water applications. Specify your regulatory requirement (NSF, WRAS) in your RFQ.
Can you plate brass parts?
Yes — nickel, chrome, and gold plating through certified partners. Parts are machined, deburred, and prepared for plating in-house.
Brass vs bronze — which is better for my fitting?
Brass (C360) for easy machining and general fittings. Bronze for higher strength and wear resistance in bearing and marine applications.
Need Parts in Brass?
Upload your design for a free quote and DFM feedback within 24 hours. Our engineers will recommend the optimal grade and finishing.
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