Brass CNC Machining Services
We machine C360/C260/C377/C464 brass via CNC turning & 5-axis milling to ±0.01mm tolerance. Brass parts excel in corrosion resistance and conductivity for auto, electronic and plumbing applications.
- Tolerances up to ±0.01 mm
- 3-axis, 4-axis, and 5-axis CNC machining
- Parts delivered in as fast as 3 days
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ISO 9001:2015 | IATF 16949:2016
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Brass in CNC Machining
Brass, a copper-zinc alloy, is widely used in Brass CNC Machining due to its excellent machinability, corrosion resistance, and attractive surface finish. Compared with many engineering metals, brass allows higher cutting speeds, reduced tool wear, and efficient CNC turning and milling operations. Grades such as C360 free-machining brass are commonly selected for precision components because of their outstanding machining performance and dimensional consistency.
Custom brass CNC parts are widely used in plumbing systems, valves, fittings, electrical components, marine hardware, and automotive applications where corrosion resistance and reliable machinability are required. ZH Precision machines brass components according to customer drawings and CAD models, supporting both prototype and production quantities for OEM and industrial projects.
Brass CNC Machining Capabilities
| Feature | Detail |
|---|---|
| Available Brass Grades | C26000, C27200, C36000 |
| Cost Level | $$$ |
| Standard Lead Time | 3–7 Working Days |
| General Tolerances | ±0.025 mm |
| Precision Tolerances | Up to ±0.01 mm |
| Minimum Wall Thickness | 0.5 mm |
| Surface Finish | As-machined: Ra 3.2 μm (125 μin) or better |
| Maximum Part Size | 4000 mm × 1500 mm × 600 mm |
C36000 free-machining brass offers excellent machinability with good strength and corrosion resistance. It is commonly CNC machined for fittings, valve components, connectors, fasteners, bushings, and high-volume precision turned parts.
| Ultimate Tensile Strength (MPa) | Yield Strength (MPa) | Elongation at Break (%) | Hardness (Rockwell B) | Density (g/cm³) |
|---|---|---|---|---|
| 386 | 310 | 25 | 72 | 8.49 |
Typical values for C36000 brass in H02 (half-hard) condition. Mechanical properties may vary with product form, temper, section size, and applicable material specification.
C27400 yellow brass offers good corrosion resistance, formability, and moderate machinability. It is commonly CNC machined for fittings, connectors, plumbing components, hardware, and general brass parts requiring a balance of strength and manufacturability.
| Ultimate Tensile Strength (MPa) | Yield Strength (MPa) | Elongation at Break (%) | Rockwell Hardness (HRB) | Density (g/cm³) |
|---|---|---|---|---|
| 379–414 | 345–379 | 10–14 | 61–65 | 8.44 |
Typical values for C27400 brass in H02 condition. Mechanical properties vary with product form, section size, temper, and applicable material specification.
C28000 Muntz metal offers moderate machinability, good strength, corrosion resistance, and excellent hot-forming characteristics. It is commonly CNC machined for valve components, fasteners, fittings, hardware, and general industrial brass parts.
| Ultimate Tensile Strength (MPa) | Yield Strength (MPa) | Elongation at Break (%) | Rockwell Hardness (HRB) | Density (g/cm³) |
|---|---|---|---|---|
| 496 | 345 | 25 | 78 | 8.39 |
Typical values for C28000 brass in H01 (1/4-hard) rod condition. Mechanical properties may vary with product form, temper, section size, and applicable material specification.
C26000 cartridge brass offers excellent ductility, cold formability, corrosion resistance, and moderate strength. It can be CNC machined for electrical components, fittings, hardware, housings, and other brass parts where formability and material performance are important.
| Ultimate Tensile Strength (MPa) | Yield Strength (MPa) | Elongation at Break (%) | Rockwell Hardness (HRB) | Density (g/cm³) |
|---|---|---|---|---|
| 379 | 276 | 48 | 60 | 8.53 |
Typical values for C26000 brass in H00 (1/8-hard) rod condition. Mechanical properties may vary with product form, temper, section size, and applicable material specification.
C24000 low brass offers high ductility, excellent cold formability, good corrosion resistance, and moderate strength. It can be CNC machined for electrical components, decorative hardware, fittings, housings, and other low-load brass parts.
| Ultimate Tensile Strength (MPa) | Yield Strength (MPa) | Elongation at Break (%) | Rockwell Hardness (HRB) | Density (g/cm³) |
|---|---|---|---|---|
| 365 | 276 | 30 | 55 | 8.67 |
Typical values for C24000 brass in H01 (1/4-hard) condition. Mechanical properties may vary with product form, temper, section size, and applicable material specification.
Steel CNC Machining Quote Request
Send us your drawings or CAD files for steel CNC machined parts. We will review your requirements and provide a quotation based on material, tolerance, and quantity.
Surface Finishing Options for Steel
ZH Precision provides professional surface finishing for brass parts: sandblasting, electroplating, electrophoresis, painting, conversion coating, passivation, polishing and blackening. We monitor coating thickness, hardness, color, salt spray and adhesion, and provide corresponding test reports. Contact us to learn more details.
As Machined
Retain original CNC cutting texture to control overall costs, ideal for hidden structural brass parts without strict cosmetic requirements.
Black Oxide
Chemical blackening improves abrasion and mild rust resistance, ideal for precision industrial brass gears, valve cores and mechanical moving fittings.
Polishing
High-gloss buffing eliminates surface tool marks to achieve bright luster, perfect for exposed decorative brass fittings and visible assembly parts.
Sand Blasting
Fine blasting creates uniform matte texture to boost coating adhesion for brass parts requiring later plating treatments.
What is Brass CNC Machining?
Brass CNC machining is a subtractive manufacturing process that uses computer-controlled milling and turning machines to cut brass material into precise components according to digital designs (CAD models). The process is widely used to produce high-accuracy parts with excellent surface finish and stable dimensional consistency.
Brass is one of the most machinable metals, especially grades like C36000, which allow high-speed cutting with low tool wear and efficient chip removal. This makes it suitable for both prototype development and large-scale production.
Common CNC-machined brass parts include fittings, valves, electrical connectors, plumbing components, and precision mechanical hardware used across automotive, electrical, marine, and industrial applications.
Advantages of CNC Machined Brass
1. Exceptional Machinability: Excellent machinability enables high-speed CNC processing with low tool wear, making brass ideal for complex geometries and tight-tolerance components.
2.High Electrical & Thermal Conductivity: Superior electrical and thermal conductivity makes brass suitable for connectors, terminals, contacts, and other conductive applications.
3.Strong Corrosion Resistance: Natural resistance to corrosion and moisture helps brass parts maintain reliable performance in plumbing and industrial environments.
4.Low Friction & Wear Resistance: Inherent low-friction properties reduce wear, making brass suitable for bushings, valves, gears, and moving assemblies.
5.Excellent Surface Finish: Brass produces smooth machined surfaces with minimal post-processing, delivering both functional and aesthetic benefits.
6.Reliable Strength & Dimensional Stability: Good strength and dimensional stability ensure consistent performance in precision-machined components.
Applications of CNC Machined Brass Parts
1.Electronic Components: Precision brass terminals, pins, contacts, and connectors provide reliable conductivity for electronic and electrical assemblies.
2.Plumbing Fittings: Corrosion-resistant brass valves, couplings, adapters, and pipe fittings are widely used in water and fluid handling systems.
3.Automotive Components: CNC machined brass inserts, sensor fittings, and electrical connectors support durability and reliable performance in automotive assemblies.
4.Industrial Equipment: Brass bushings, bearings, gears, and valve components offer low-friction operation for various industrial machinery applications.
5.Medical Devices: Precision brass parts are used in selected medical instruments and equipment requiring dimensional accuracy and reliable performance.
6.Instrumentation & Control Systems: Machined brass fittings, housings, and connectors are commonly used in measuring, monitoring, and control equipment.