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Brass CNC Machining Service
Precision Brass CNC Machining Service | Custom Parts
Brass CNC Machining Service offered by us is a lovely course for your needful manufacturing regarding achieving the totality of accuracy and precision. In our service, we specialize in not only their top-notch milling or turning, but we also handle everything from complex and high-precision brass parts for any electronic, automotive, and industrial use.
What is Brass CNC Machining?
Brass CNC machining is this manufacturing method requiring precision that deploys computerized machine tools for the custom shaping of brass alloys into parts and components. This subtractive technique has the material subtract from a solid brass blank to produce complex geometries with great precision.
The Brass Rules for Machine Reliability
High Machinability
Due to minimum tool wear concerns, brass could go through machining such as high-speed cutting and good surface finish.
Corrosion Resistance
Brass is already known to be corrosion-resistant against moisture, atmospheric conditions, and a number of chemicals.
Electrical Conductivity
High thermal and electrical conductivity from the copper alloy.
Aesthetic Appeal
Golden in color and can be polished to a mirror shine for various decorative applications.
Low Friction
An ideal choice for bearings and bushings, particularly when a low wear rate is necessary.
Antimicrobial Properties
Natural antibacterial attributes suitable for medical and food applications.
Why Choose Us
Why 2,500+ Engineers Opt Us for Precision Brass Machining
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Years Experience
On the art of precision brass machining and its technology, we are trusted since 1974
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Parts Delivered
Aerospace, medical & electronics have been the areas where the record is established
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On-Time Delivery
Thus, a punctual delivery that you can rely on for your manufacturing
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Quote Response
Rapid quotes are provided along with complimentary DFM feedback on every project
Gallery of Custom Brass Machined Parts
Explore our gallery of custom brass machined parts. See examples of high-quality, precision-engineered components for various industries.
Brass CNC Machining Capabilities
Our advanced facility contains over 50 CNC machines comprising 3, 4 and 5-axis machining centers, Swiss-type lathes and multi-spindle screw machines.
🔧 Machining Processes
✓ CNC Milling (3, 4, 5-axis)
✓ CNC Turning & Lathe Work
✓ Swiss Screw Machining
✓ Multi-Spindle Auto Screw
✓ Threading & Tapping
✓ Knurling & Engraving
📐 Technical Specifications
±0.0005"
Tolerances
0.05" - 24"
Part Size (Diameter)
16 Ra μin
Surface Finish
1 - 100,000+
Volume Capacity
3 Days
Fastest Lead Time
STEP, IGES, Solidworks
File Formats
Brass Weight Calculator
Calculate the exact weight of your brass part using real material density values
Length (mm)
Width (mm)
Height (mm)
Diameter (mm)
Length (mm)
Outer Diameter (mm)
Inner Diameter (mm)
Length (mm)
Brass Grade
0
Grams
0
Pounds
Volume
0 cm³
Material Density
8.50 g/cm³
Weight (kg)
0 kg
Weight (oz)
0 oz
Formula: Weight = Volume × Density. Volume calculated based on shape geometry. All density values sourced from ASM International Handbook.
Reference: Brass Density Values (ASM Standards)
C360 Free-Cutting: 8.50 g/cm³
C260 Cartridge: 8.53 g/cm³
C464 Naval: 8.41 g/cm³
C69300 Lead-Free: 8.47 g/cm³
Comparing Brass Grades: Your Guide to Precision Machining
Compare mechanical properties, machinability, and applications of popular brass alloys for CNC machining
| Grade | Composition | Tensile Strength | Yield Strength | Hardness | Machinability | Applications |
|---|---|---|---|---|---|---|
|
C360
Free-Cutting Brass
Most Popular
|
61.5% Cu
35.5% Zn
3.0% Pb
|
338-469 MPa
49-68 ksi
|
124-310 MPa
18-45 ksi
|
55-80 HRB
Soft-Half Hard
|
100% Rating
|
Gears
Valves
Fittings
Fasteners
|
|
C260
Cartridge Brass
|
70% Cu
30% Zn
|
303-896 MPa
44-130 ksi
|
76-448 MPa
11-65 ksi
|
45-82 HRB
Annealed-Spring
|
30% Rating
|
Radiators
Rivets
Hinges
Casings
|
|
C464
Naval Brass
Marine Grade
|
60% Cu
39.2% Zn
0.8% Sn
|
379-607 MPa
55-88 ksi
|
172-455 MPa
25-66 ksi
|
58-85 HRB
Soft-Hard
|
30% Rating
|
Marine Hardware
Propellers
Pumps
|
|
C69300
Silicon Brass (Eco Brass)
Lead-Free
|
75% Cu
21.4% Zn
3% Si
|
517-655 MPa
75-95 ksi
|
241-379 MPa
35-55 ksi
|
70-92 HRB
Half Hard-Hard
|
80% Rating
|
Potable Water
Medical
Food Processing
|
|
C385
Architectural Bronze
|
57% Cu
40% Zn
3% Pb
|
414 MPa
60 ksi
|
138 MPa
20 ksi
|
65 HRB
Half Hard
|
90% Rating
|
Door Hardware
Decorative
Hinges
|
Data Source: ASM International Handbook Volume 2, MatWeb Material Property Data.
Values shown for typical temper conditions. Contact us for specific material certifications.
Best Machinability
C360
100% machinability rating standard
Best Corrosion Resistance
C464
Dezincification resistant
Highest Strength
C69300
Up to 655 MPa tensile
Lead-Free Option
C69300
NSF/ANSI 61 certified
Expert Brass CNC Machining Service: Technical Resources
Detailed material properties and machining standards for our most common brass alloys.
Free-Cutting Brass
C3604 / CC3604
Industry standard for high-speed machining with 100% machinability rating.
Download PDF
Duplex Brass
H59 (GB Standard)
Economical high-strength duplex brass (~59% Cu) for structural components.
Download PDF
Alpha-Beta Brass
H62 (GB Standard)
Balanced ductility and strength, ideal for complex cold-working and forming.
Download PDF
Gilding Metal
C210 (C21000)
95% Copper alloy with superior conductivity and a distinctive deep red color.
Download PDF
Commercial Bronze
C220 (C22000)
90% Copper content providing excellent thermal stability and warm aesthetics.
Download PDF
Red Brass
C230 (C23000)
Outstanding corrosion resistance for architectural and plumbing applications.
Download PDF
Brass Grade Selector
Find the optimal brass alloy for your CNC machining project based on requirements
Primary Application
Key Requirements (Select all that apply)
Production Volume
✓ Recommended Brass Grades
Brass Machining Surface Finishing Options
Functionality and aesthetics of brass parts can be improved with our diverse brass surface treatment options.
As Machined
Surface of the part where the cutting process is done is clear but has tool marks. Ra 63-125 μin. Inexpensive processing for non-cosmetic parts.
Polished / Buffed
The shining surface of brass's golden tone is the main attraction. Ra 8-16 μin. Perfect for ornamentation use.
Brushed / Satin
Characteristic regular grain of the bristle at a particular angle. It covers the traces of fingers and very small scratches. Commonly used for door handles.
Nickel Plating
Very good at keeping rust away and at the same time being durable. Glossy or dull finish is offered.
Chrome Plating
Very bright, shiny, and extremely reflective. Superior in hardness and scratch resistance.
Passivation
A chemical treatment that helps the metallic surface of the part resist rusting. The usual look is maintained.
Success Stories
Practical Brass CNC Machining Solutions
Explore the ways we've assisted global leaders in the production of precision brass parts to meet their difficult manufacturing challenges.
Medical Devices: Lead-Free Components
FDA-Registered • Minneapolis, MN
The Situation
Changing stainless steel with biocompatible, lead-free brass and thus reducing the weight of the instrument by 25% while complying with FDA and EU MDR regulations.
32%
Weight Reduction
0
Defects per 50K
±.008
Tolerance (mm)
15%
Cost Savings
"The documents acted as a pivotal support for our FDA application. The surgeons have given great feedback on the weight reduction."
Aerospace: High-Pressure Fittings
Tier 2 Supplier • Wichita, KS
The Situation
Fabricating fittings out of Brass for hydraulic systems of 3,000 PSI that have 100% AS9100D traceability, no pores, and a service life of 20 years.
6.5K
PSI Test Pressure
100%
FAI Passed
0
Service Failures
$180K
Yearly Savings
"The testing for leaks using helium and commitment to complete traceability on their part made them a partner we could not do without. We have now extended our collaboration."
Plumbing: NSF Certified Valves
National Manufacturer • Chicago, IL
The Situation
Changeover of leaded brass to NSF/ANSI 61 compliant lead-free brass for 500,000+ valves per year without any cost increase or production slowing down.
0.08%
Lead Content
98.7%
First Time Yield
$0.12
Unit Savings
$45M
Market Secured
"They improved the process so much that we actually ended up with reduced costs. Their NSF documentation package saved us many months in certification."
Marine: Seawater Resistant Impellers
Pump Manufacturer • Seattle, WA
The Situation
Manufacture brass impellers for cooling systems using seawater that have a life of 10+ years, no dissolution of zinc, and G2.5 dynamic balancing.
G1.0
Balance Quality
25%
Less Vibration
12+
Years Life
3K+
Active Units
"After five years, we have not experienced any failure due to corrosion. Their brass impellers have set the standard for us."
Electrical: High Current EV Connectors
Charging Station Mfg • Austin, TX
The Situation
Increase production from 10,000 to 100,000 pieces per month for connectors made of brass having a contact resistance of less than 50 micro-ohm and 10,000 mating cycles.
30μΩ
Avg Resistance
15K+
Mating Cycles
10x
Scale Increase
2M+
Units Live
"They led us to a better design. Their capability in manufacturing allowed us to transition from a startup to a full-blown production process without any quality issues."
Robotics: Precise Cooperative Gears
Cobot Maker • Boston, MA
The Situation
Create AGMA 12 quality brass gears for robot joint actuators with noise level of less than 45 dB and backlash of less than 0.02mm for force-sensing precision.
L13
AGMA Quality
40dB
Noise Level
30K+
Hours Life
5K+
Robots Deployed
"The AGMA 13 quality they continuously produce is superb—most gear manufacturing cannot do this in steel, less brass."
Industries We Serve
Brass CNC Machining Applications
Our precise brass parts have won through quality across different industries and have been granted specialized certifications.
Electronics & Electrical
Connectors, terminals, switch components, PCB hardware
UL / RoHS Compliant
Plumbing & Valves
Fittings, valve bodies, stems, pump components
NSF/ANSI 61 Certified
Aerospace & Defense
Hydraulic fittings, connectors, instrumentation parts
AS9100D Certified
Medical Devices
Surgical instruments, diagnostic equipment components
ISO 13485 Certified
Automotive
Fuel system fittings, sensors, electrical components
IATF 16949
Marine & Offshore
Naval brass expertise. Propellers, fittings, seawater systems
DNV / ABS Certified
Brass CNC Machining FAQs
Brass is an alloy of metals that consists of the copper-zinc combination, and these effects are produced by ratios of copper to zinc. Appropriate characteristics can be brought forward by choosing brass material with a copper-to-zinc ratio that ensures quality, durability, color, and machinability. For example, low brass (Cu-20 Zn) is less strengthened, but the high zinc helps drill holes quite efficiently.
Brass is employed extensively in myriad applications across various industries, including plumbing fixtures, electrical connectors, valve components, musical instruments, and architectural embellishments. Due to its low friction coefficient and corrosion-resistant property, brass is highly desired when a material is involved, either as metal or a non-metal in hybrid systems.
Since brass has copper in it, it resists corrosion in many environments and is partially tarnish-resistant and possibly hydrating, having innate antimicrobial properties. Being of a lower ranking with regard to corrosion resistance than stainless steel, brass is applied cost-effectively to many outdoor and semi-marine areas, so long as it is alloyed and finishes competently.
Yes, brass material is also very popular for its shiny, gold-like appearance for decoration and ornamentation, which polishes off beautifully to that polished, glinting finish. Brass architectural hardware, lighting fixtures, and trim give lots of benefits in the look-along with durability.
Brass material normally appears very cost efficient in terms of its machinability aspect and lower tool wear. These things, in turn, reduce production costs and lead times. The raw material cost at alloy level has a lot about it, but in many cases, handling costs in fewer machine setups and faster cycle times may indeed put a brass alloy in a more competitive light alongside more expensive metals or composites of complex metal and plastic, among which brass finds increasing preference and application.
With good ole time on your mind, here's a set of machine shops for brass that could handle everything you need, from protos to the finish line, even with brass machining as one of their core competences. While working with brass, good tool paths, material grades (copper/zinc ratios), and conceivable finishes that meet functional as well as aesthetic requirements are best practiced by personnel extensively trained in brass.
Brass is well-known not only for its low friction coefficient, but also for its ductility and thermal conductivity. Stay careful to avoid designing too thin walls around higher-stress areas, as galvanic corrosion could arise when brass is coupled with other materials. Surface finishes must be established for either aesthetic or functional reasons. Talking to your machining partner early in the process can eliminate rework and ensure that a design is easily manufacturable.
The choice of the best type of brass alloy-whether brass c360 (also known as free machining brass or 360 brass), c260 cartridge brass, red brass, naval brass or specialized leaded brass-would depend on the ease of machinability, tensile strength, and Lead content; brass c360 (brass 360) has always been considered the best alloy as its machinability properties (given by the controlled level of lead) enhance tool life dramatically, improve quality of finish, and allow faster prototyping and production runs into the bargain, while c260 is used in machining operations such as pressure-beating applications and other kinds of brass applications that demand strength and corrosion resistance.
Different machining processes deliver different benefits for brass part: cnc milling enables complex shapes, pockets and multi-axis features with excellent surfaces and tight tolerances for assemblies and prototypes; cnc turning and screw machine operations optimized for efficient production of the turned and screw machine parts such as fasteners, shafts, and precision fitting all with consistent diameters and threading; swiss machining is the best option for very small, intricate turned components and often those with long production runs needing high precision and minimal secondary operations so choosing the correct process influences cost, lead time, and the achievable quality of final brass components.
Certainly, and in simple terms, when drafting detailed drawings identifying the specific alloy (such as brass c360, c260, or shipbuilding brass), include required tolerances, surface finish, thread specifications, heat treatment/plating requirements, and any other quality considerations such as material tracing or certification. Also, fill out intended use, expected loading, electrical requirements, and any environmental considerations that can help guide our CNC machining service to suggest the appropriate type of brass, the machinable kind for ease of machining or the highly corrosion-resistant variety for marine. We will expect faster response times in terms of quotes, rapid prototyping, and mass production.
