Brass CNC Machining Services
Get precise and durable custom brass parts. Fast turnaround and competitive quotes for all your manufacturing needs.
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Certifications
ISO 9001:2015 | ISO 13485：2016 | IATF16949
Custom Brass CNC Machining - Fast, Precise, and Affordable
BOYI is a CNC machining manufacturer based in China. With our brass CNC machining services, you’ll benefit from certified materials, factory pricing, no minimum order, and fast turnaround, saving you 30%-40% cost on average! Our advanced 3-axis, 4-axis, and 5-axis CNC milling capabilities ensure the production of high-quality parts with excellent mechanical properties, precision, and repeatability. Enjoy fast delivery in as little as 3 days!
Brass Part Capability
| Standards | Details |
|---|---|
|
Tolerances |
±0.01 mm |
|
Maximum Part Size |
4000 mm×1500 mm×600 mm |
|
Wall Thickness |
0.75 mm（Min Wall Thickness: 0.5 mm） |
|
Linear Dimension |
±0.025 mm |
|
Surface Finish |
Standard finish is as-machined: 125 Ra or better |
Brass CNC Machining Materials
We offer a wide range of material options for your brass parts.
Copper C360
Copper C360, known for its high machinability due to lead content, is used in gears, screws, and valve components.
- Tensile Strength: 124-310 MPa
- Fatigue Strength: 138 MPa
- Elongation at Break: 53%
- Hardness: 63-130 Brinell
- Density: 8.49 g/cm³
- Corrosion resistance: Moderate
- Post-Processing: Annealing
Copper C260
Cartridge Brass, also known as Copper C260, is an alloy with 30% zinc and less than 1% lead and iron. It is widely used in ammunition cartridges, rivets, hinges, and radiator cores.
- Tensile Strength: 95 MPa
- Fatigue Strength: 90 MPa
- Elongation at Break: 65%
- Hardness: 54 Brinell
- Density: 8.53 g/cm³
Maximum Temp: 1680°F
Copper C280
Copper C280 is a copper-zinc alloy with around 90% copper and 10% zinc, offering excellent corrosion resistance and good strength. It’s commonly used in architectural, marine, and electrical applications.
- Tensile Strength: 275-350 MPa
- Fatigue Strength: 120 MPa
- Elongation at Break: 30%
- Hardness: 80-120 Brinell
- Density: 8.70 g/cm³
Copper C270
Copper C270 is a high-strength, copper-zinc alloy with excellent machinability and corrosion resistance. It is widely used in applications such as electrical connectors, fittings, and plumbing parts.
- Tensile Strength: 350-550 MPa
- Fatigue Strength: 170 MPa
- Elongation at Break: 25%
- Hardness: 120-160 Brinell
- Density: 8.47 g/cm³
Copper C240
Copper C240 is a copper-zinc alloy with good formability and moderate strength. It is commonly used in applications such as electrical connectors, terminals, and hardware.
- Tensile Strength: 300-450 MPa
- Fatigue Strength: 150 MPa
- Elongation at Break: 30%
- Hardness: 100-140 Brinell
- Density: 8.48 g/cm³
Copper C230
Copper C230 is a copper-zinc alloy with excellent formability and moderate strength, commonly used in applications such as electrical connectors, rivets, and decorative items.
- Tensile Strength: 250-400 MPa
- Fatigue Strength: 150 MPa
- Elongation at Break: 30%
- Hardness: 80-120 Brinell
- Density: 8.5 g/cm³
Copper C210
Copper C210 is a copper-zinc alloy with good corrosion resistance and formability. It is commonly used in applications such as hardware, rivets, and decorative items.
- Tensile Strength: 200-300 MPa
- Fatigue Strength: 120 MPa
- Elongation at Break: 30%
- Hardness: 70-100 Brinell
- Density: 8.6 g/cm³
Brass Parts Post-Processing Options
The polished finish offers a high gloss, smooth surface with Ra 0.8μm (Ra 32μin) roughness, ideal for mirror-like applications.
Bead Blasting
Metals or plastics parts surface is left with a smooth, matte appearance, with no thickness removal specified.
Black Oxide
Black oxide is a corrosion-resistant treatment for metals, providing a matte black finish, mild rust protection, and improved wear resistance.
As Machined
This finish retains visible tool marks and is suitable for both metals and plastics. There is no specific thickness removed in this finish.
If you have any other surface treatment requirements, click here to contact us.
Why Choose BOYI?
Partner with BOYI for reliable, cost-effective solutions tailored to your needs.
Comprehensive Services
From prototypes to large-scale production, including value-added services like polishing, bead blasting, and surface finishing.
Customer-Centric
Free design consultations, first article inspection (FAI), and comprehensive quality reports ensure your complete satisfaction.
Expertise & Experience
Over 20 years of experience in brass CNC machining, and rapid prototyping, ensuring high-quality results.
Advanced Technology
State-of-the-art 3-axis, 4-axis, and 5-axis CNC machines deliver precision parts with tight tolerances.
Cost-Effective Solutions
Save 30%-40% on production costs with factory-direct pricing and no minimum order requirements.
Quality Assurance
As an ISO 9001:2015 certified company, we provide material certifications reports to ensure the highest quality.
What is Brass?
Brass is a versatile alloy primarily composed of copper and zinc, with varying proportions to achieve different properties. It is known for its excellent corrosion resistance, high strength, and attractive golden appearance.
Key Properties of Brass:
- Resistant to corrosion and wear.
- Easy to machine, form, and cast.
- Gold-like finish suitable for decorative applications.
- Effective in electrical and heat transfer applications.
Brass Machining Applications
Brass is widely used in industries such as:
- Electrical terminals and connectors
- Plumbing fittings (valves, pipes, faucets)
- Automotive components (gears, bushings, radiators)
- Decorative hardware (handles, hinges, fixtures)
- Musical instrument parts (trumpets, saxophones)
- Ammunition casings
- Marine hardware (screws, propellers, fasteners)
- Industrial fasteners and bearings
- Heat exchanger components
- Watch and clock parts
Key Advantages
The following advantages make brass the preferred choice for manufacturers seeking reliable and cost-effective materials.
- High precision and accuracy.
- Easy to machine for complex designs.
- Consistent results for large runs.
- Excellent corrosion resistance.
- Durable and strong parts.
- Smooth, polished finish for aesthetics.
- Faster production times.
- Cost-effective with less material waste.
