Brass CNC Machining Services

High-Precision Machining for Corrosion-Resistant & Conductive Brass Parts
Custom Prototypes and Production with Superior Surface Finish

What is Brass CNC Machining?

Brass CNC machining covers free-machining and structural brasses (e.g., C360, C353, C260, C464). Brass cuts cleanly, holds tight tolerances, and is ideal for connectors, valves, gears, and aesthetic parts thanks to its smooth finish.

Tooling: Sharp carbide/HSS with positive rake; polished flutes reduce built-up edge.
Chip control: Consistent chip load; use chip-breakers on turning to avoid long strings.
Coolant: Often optional; mist or light flood helps finish and tool life on long cycles.
Finishing: Easy deburr; supports plating, passivation, polishing, and engraving.

Brass CNC machining overview with polished carbide tools

Brass machinability and surface finish considerations

Key Considerations

Brass machines fast with minimal heat—great for short cycle times. Use higher SFM than steels, maintain steady feeds to prevent rubbing, and choose fine-edge tools for clean edges. For show-face parts, plan a light finish pass and gentle deburr/polish.

Avoid overly aggressive clamping on thin walls; brass can deform. For threads, form taps or sharp cut taps keep crests crisp.

Precision Brass CNC Machining

3, 4, 5-Axis CNC Milling

High-speed milling for precise pockets, thin walls, and cosmetic faces. Polished flutes, balanced toolholders, and light finish passes deliver bright surfaces ready for plating or anodic finishes (where applicable).

Brass CNC turning and mill-turn for fittings and connectors

CNC Turning & Mill-Turn

Rapid-cycle turning for fittings, inserts, and connectors with crisp threads and chamfers. Mill-turn consolidation reduces setups and keeps concentricity and finish consistent.

Brass CNC Machining Capabilities

Feature	Detail
Max Part Size (X/Y/Z)	2300 × 1500 × 600 mm
Minimum Feature Size	⌀1 mm
Wall Thickness	0.25 mm
Tolerance	±0.005 mm
Surface Finish (as milled)	Ra 0.4–3.2 µm
Standard Lead Time	3 working-days for rapid prototyping
Pricing Level	To be confirmed after design review
Type of Machine	Gantry CNC / 3-4-5-Axis CNC / Mill-Turn Compound CNC / Swiss-Type CNC / Turning Machine...etc...
Brass Grades	C360 (Free-Machining), C353 (Eco/Low-Lead), C260 (Cartridge), C464 (Naval)

Brass Grades

Common grades for fast machining and clean cosmetic finishes. Need a special spec? Contact us.

C360 (Free-Machining) C353 (Eco/Low-Lead) C260 (Cartridge) C464 (Naval)

C360 brass free-machining turned fittings (3:2)

C360 (Free-Machining)

Excellent machinability; bright finish
Ideal for high-volume turned parts
Threads and knurls form cleanly
Common for connectors and fittings

Run high SFM with sharp tools; minimal coolant often sufficient.

C353 (Eco/Low-Lead)

Lead-reduced alternative to C360
Good machinability; RoHS-friendly
Plumbing, electronics, consumer
Polishes well for cosmetics

Similar parameters to C360; tune SFM/feeds per bar lot.

C260 (Cartridge)

Higher ductility; good formability
Slightly lower machinability vs C360
Decorative, architectural, hardware
Takes polish and plating well

Use sharp tools and light finish passes for cosmetic faces.

C464 (Naval)

Excellent seawater corrosion resistance
Good strength; bearings, marine fittings
Machines cleanly with sharp edges
Often used for valves and hardware

Keep chip load steady; polish or passivate per spec.

Display of Our CNC Machining Brass Parts

Brass CNC machined control knob with knurled edge

Brass CNC machined valve body with milled ports

Brass CNC machined pipe fitting with smooth threads

Brass CNC machined electrical connector with tapped holes

Brass CNC machined bushing with reamed inner bore

Material Machining Guide

Brass CNC Machining: Selection, Process, and Quality Notes

Brass is commonly considered for threaded fittings, bushings, connectors, valves, and decorative machined parts. It is selected because of excellent machinability and good corrosion resistance. For CNC machining, the final result depends on material grade, toolpath strategy, tolerance allocation, surface finish, and inspection planning.

Good Fit

Use Brass when the application benefits from excellent machinability and good corrosion resistance and the design can be machined with stable workholding.

Watch Points

Confirm wall thickness, hole depth, thread callouts, burr control, cosmetic surfaces, and finish buildup before production.

Quality Planning

Define critical dimensions, inspection method, tolerance class, and documentation requirements before the first article.

Topic	Practical Guidance for Brass
Design review	Send 3D CAD, 2D drawings, material grade, finish notes, quantity, and critical-to-function dimensions.
Machining process	MTSPi can review whether milling, turning, drilling, tapping, boring, or a combined route is best for the geometry.
Surface finish	Plan cosmetic and functional finishing early, especially where coating thickness, polishing, or deburring affects fit.
Inspection	Use calipers, micrometers, gauges, CMM, or visual inspection based on tolerance risk and assembly function.

Related Material Choices

Compare Brass With Nearby CNC Materials

Aluminumexcellent machinability, low weight, good corrosion resistance Alloybroad grade selection and strong mechanical performance Titaniumhigh strength-to-weight ratio and excellent corrosion resistance Nickelstrong performance in high-temperature and corrosive environments Stainless Steeldurability, corrosion resistance, and clean appearance Tool Steelhardness, wear resistance, and dimensional stability Alloy Steelstrength, toughness, and heat-treatment response Carbon Steelgood strength and economical machining Copperhigh electrical and thermal conductivity Bronzewear resistance, low friction, and corrosion resistance

FAQ

Is Brass suitable for CNC machining?

Yes, Brass can be CNC machined when the grade, geometry, tooling, workholding, and tolerance requirements are planned correctly.

What should I send for a Brass machining quote?

Send CAD files, 2D drawings, quantity, material grade, finish requirements, tolerance notes, and any inspection or packaging needs.

Can Brass parts be finished after machining?

Often yes. The right finish depends on the material family and part function. Confirm finish thickness and cosmetic expectations before machining.

How do I reduce cost on Brass CNC parts?

Use practical tolerances, avoid unnecessary deep pockets or tiny holes, simplify setups, and reserve tight control for functional features.

CNC Metal MaterialsReturn to the material category page. CNC Materials LibraryCompare all metals and plastics. Surface TreatmentChoose finishing options for machined parts. Request a QuoteSend files for manufacturability review.

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Brass CNC Machining Services