Brass CNC Machining Service

Brass is one of the most satisfying materials to machine. It cuts clean, leaves a beautiful finish, and holds tight tolerances with minimal tool wear. If your part needs corrosion resistance, electrical conductivity, or a classic look, brass is a solid choice.

We machine all common brass alloys—C360, C464, C260—and offer plating, polishing, and other finishing options.

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Why Brass for Custom CNC Machined Parts?

Good electrical conductivity

Great for connectors, terminals, and RF components

Corrosion resistant

Handles moisture and many chemicals without rusting

Excellent machinability

C360 brass is the benchmark for free‑machining materials – cuts fast, good finish

Recyclable

Environmentally friendly

Non‑sparking

Safe for use in explosive environments (oil & gas, chemical plants)

Antimicrobial properties

Naturally resists bacterial growth – used in door hardware and medical settings

Common Brass Alloys We Machine

We offer a wide range of material options for your brass CNC machining parts. 

Alloy Key Properties Applications
C360 Free‑machining, excellent chip breaking, great finish Fittings, valves, gears, bushings, screw machine parts
C260 High ductility, good cold working radiator cores, decorative hardware

Not sure which alloy you need? Tell us your application, and we’ll recommend the right one.

Surface Finishing for CNC Brass Parts

Brass can be used as‑machined, but it tarnishes over time. We offer several finishes to protect and enhance it:

As machined

Clean, deburred, natural brass color – will tarnish

Bead blast

Uniform matte finish, hides minor marks

Plating (nickel, chrome)

Adds durability, changes appearance to silver/chrome

Clear coat (lacquer)

Seals the surface, prevents tarnish

Powder coating

Durable colors, any RAL

Mechanical polish

Satin to mirror finish – brings out the warm gold tone

Laser marking

Logos, serial numbers, 2D codes

If the part will be handled or exposed to air, we recommend clear coating to prevent tarnish.

Design Tips for Brass CNC Machining

    • Take advantage of C360: If you don’t need high strength, specify C360. It machines faster and cheaper than other brasses.

    • Avoid sharp corners: Like any material, radiused corners are easier to machine.

    • Threads are easy in brass: Tapping works well—no need to thread mill unless you have non‑standard sizes.

    • Watch for burrs: Brass is ductile and can form fine burrs. We deburr all parts, but specify “no burrs” if it’s critical.

    • Consider tarnish: If appearance matters long‑term, plan for clear coating or plating.

Typical Applications for CNC Machined Brass

    • Plumbing & hydraulics: Valves, fittings, hose connectors, pipe nipples

    • Electrical: Terminals, connectors, switch components, bus bars

    • Marine: Hardware, through‑hull fittings, propeller shaft components

    • Architectural: Door hardware, hinges, railings, decorative trim

    • Automotive: Sensors, fittings, fluid handling components

    • Musical instruments: Trumpet valves, clarinet keys, guitar hardware

Why Engineers Pick Us for Brass Work

  • We know brass. We’ve run it on Swiss lathes, turning centers, and mills. We know when to use carbide vs. HSS, when to increase feed, and when to add a deburring pass.

  • Free DFM feedback: We review your design and suggest ways to save cost or improve function.

  • Fast turnaround: Most brass parts ship in 7 business days; rush available.

  • Flexible quantities: From one prototype to 10,000+ pieces – no MOQ hassles.

  • Full inspection: Dimensional reports, material certs, photos – we document what we ship.

Brass CNC Machining FAQs

No – C360 brass is one of the easiest materials to machine. It cuts clean, produces small chips, and holds tolerances well. That’s why it’s a favorite for high‑volume screw machine work.

C360 is free‑machining – chips break easily, excellent surface finish. C464 (naval brass) has better corrosion resistance in saltwater and marine environments. Use C360 for general parts, C464 for marine applications.

No – brass doesn’t rust like steel. It can tarnish and darken over time when exposed to air and moisture. Clear coating or plating prevents tarnish.

Yes – we offer mechanical polishing up to a mirror finish. It’s labor‑intensive, so cost depends on part size and geometry.

Yes – we provide mill test reports (MTRs) from our suppliers. Just specify “MTR required” on your drawing or purchase order.

Yes – we provide material test reports (MTRs) from our suppliers. Just specify “MTR required” on your drawing or purchase order.

Yes, most free‑machining brasses (C360, C385) contain lead for machinability. If lead is a concern (e.g., for potable water or medical applications), we can use lead‑free alternatives like C464 (naval brass) or C260. Tell us your requirement.

Yes – C360 brass is ideal for Swiss machining. We can produce small, complex parts with high precision.

Ready to Make Something in Brass?

Upload your drawing. We’ll review it, suggest the best alloy and process, and send you a quote – usually within hours.

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