CNC Machining Brass & Copper Services
High-speed CNC brass and copper machining with 7+ material grades available. Partwork delivers exceptional electrical and thermal conductivity components across India with 3-7 day delivery. Upload your CAD file for instant pricing.
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Overview
Detailed Material Analysis
Brass and Copper alloys are prized for their exceptional electrical and thermal conductivity, corrosion resistance, and aesthetic appeal. Brass (Copper-Zinc alloy) offers outstanding machinability and is ideal for low-friction applications and decorative parts. Pure Copper is the gold standard for electrical and thermal management components. Partwork utilizes high-speed Swiss CNC machining to produce precise brass and copper components efficiently.
| Property | Specification |
|---|---|
| Electrical Conductivity | Excellent (100% IACS for Copper) – industry standard |
| Thermal Conductivity | Very High (390 W/mK for Copper) – ideal for heat sinks |
| Machinability | Outstanding (Brass C360 is the standard 100% rating) |
| Friction Coefficient | Low (Brass) – excellent for gears and bushings |
| Corrosion Resistance | Good – natural patina forms, does not rust like steel |
| Antimicrobial | Yes – naturally kills bacteria on surface |
| Lead Time | 3-7 working days (standard) |
| Typical Price (India) | Moderate to High (₹600-900/kg raw material) |
Available Grades & Standards
We offer a wide selection of grades to meet specific engineering requirements, from general purpose to high-performance flight-grade alloys.
| Grade | Category | Key Features | Typical Applications |
|---|---|---|---|
| C36000 (Free-Cutting Brass) | Brass | The industry standard for machining. 100% Machinability rating | Fittings, fasteners, gears, valves, decorative parts |
| C11000 (ETP Copper) | Copper | Electrolytic Tough Pitch. 99.9% Pure. High conductivity | Busbars, electrical contacts, windings, power transmission |
| C10100 (OFHC Copper) | Copper | Oxygen-Free High Conductivity. 99.99% Pure. Premium grade | Vacuum electronics, cryogenic components, high-end Audio |
| C46400 (Naval Brass) | Brass | High tin content for seawater corrosion resistance | Marine hardware, propeller shafts, turnbuckles |
| C26000 (Cartridge Brass) | Brass | 70/30 Brass. Excellent ductility and cold forming properties | Deep drawn parts, springs, radiator cores, ammunition |
| C12200 (DHP Copper) | Copper | Deoxidized High Phosphorus. Excellent formability and joining | Plumbing tubes, HVAC coils, heat exchanger tubing |
| C93200 (SAE 660) | Bronze | Bearing bronze. Excellent wear resistance and load carrying | Bushings, bearings, wear plates, heavy duty gears |
Common Applications
Electrical & Electronics
- Busbars and power terminals (C110)
- Heat sinks and chemical spreaders (C110)
- RF connectors and pins (C360)
- High-end audio components (C101)
Plumbing & HVAC
- Pipe fittings and valves (C360)
- Nozzles and spray tips (C360)
- Heat exchanger tubes (C122)
- Thermostat components
Automotive
- Sensor housings and contacts
- Radiator cores and tanks (C260)
- Brake line fittings
- Fluid connectors
Industrial & Marine
- Propeller shafts and hardware (Naval Brass)
- Bearings and bushings (Bronze)
- Pneumatic fittings
- Welding nozzles (Copper)
Surface Finishing Options
| Finish | Time | Cost |
|---|---|---|
As-Machined Standard finish | — | ₹0 |
Polishing / Buffing Mirror finish for decorative items | +2-4 days | +₹500-1,500 |
Nickel Plating Corrosion resistance, silver appearance | +3-5 days | +₹600-1,500 |
Silver Plating Maximize surface conductivity (electrical) | +4-6 days | +₹2,000-5,000 |
Tin Plating Solderability and corrosion protection | +3-5 days | +₹500-1,200 |
Passivation / Anti-Tarnish Prevents oxidation and dulling | +1-2 days | +₹200-500 |
Bead Blasting Matte decorative finish | +1-2 days | +₹200-500 |
Frequently Asked Questions
Everything you need to know about machining Brass & Copper Machining.
C11000 (ETP) is the standard for most electrical applications (busbars, contacts) with 100-101% IACS conductivity. For specialized applications like vacuum environments or extreme welding, C10100 (OFHC) is preferred to avoid embrittlement, though it costs 20-30% more.
C36000 Brass contains about 3% lead, which acts as a lubricant and breaks chips into tiny pieces. This allows for extremely high machining speeds, low tool wear, and excellent surface finish, making it the lowest-cost material to machine despite the higher raw material cost.
Yes, we can machine lead-free brass alloys (like C46500) for compliance with drinking water regulations (RoHS/REACH), though they are slightly more difficult to machine and material availability in India may vary.
Yes, copper and brass naturally oxidize to form a brown/green patina. If you need to maintain the bright shiny appearance, we recommend Passivation (temporary) or Lacquering/Clear-coating (permanent) surface protection.
Brass is an alloy of Copper and Zinc (yellow, good machinability). Bronze is typically Copper and Tin (reddish-brown, superior wear/bearing properties). Bronze (SAE 660) is the standard for bushings and bearings.
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