ISO 9001:2015 CERTIFIED (No. 29024010637-03R0S) Shenzhen Factory: ONLINE (2h Rapid DFM Response Guarantee)
COPPER ALLOYS • HIGH CONDUCTIVITY & BUSBARS

Copper C11000 & Brass C36000 Electrical & Thermal Machining

100% IACS Electrical Conductivity, High Thermal Dissipation & 100% Free-Cutting Machinability.

Oxygen-Free Electrolytic Copper (ETP C11000) delivers near-perfect 101% IACS electrical conductivity and 390 W/m-K thermal conductivity, making it the essential raw material for EV battery busbars, liquid cold plates, and power distribution terminals. Free-Cutting Brass (C36000) is the global benchmark for high-speed automated Swiss lathe turning of precision pneumatic valves, bushings, and decorative hardware.

101% IACS Conductivity
390 W/m-K Heat Transfer
100% Free Machinability (Brass)

Material Engineering for Copper C11000 & Brass C36000 Electrical & Thermal Machining

Certified raw material sourcing, certified heat-treatment verification, and extreme tolerance manufacturing calibrated specifically for Copper C11000 & Brass C36000 Electrical & Thermal Machining components.

Maximum Electrical Efficiency

C11000 minimizes electrical resistance and I²R heat generation in heavy 1000A+ battery terminals.

Mirror Micro-Finishes

Single-point diamond turning of brass and copper achieves optical mirror surfaces down to Ra 0.05µm.

Vacuum Brazing Compatible

Pure copper cold plates can be vacuum furnace brazed or diffusion bonded to create leak-free cooling jackets.

Corrosion Plating Ready

Accepts electroplated bright tin, silver, gold, or nickel for zero oxide contact resistance in high-humidity service.

Technical Deep Dives & Processing Notes

Detailed manufacturing insights covering tooling kinematics, thermal management, surface finishing, and dimensional inspection for Copper C11000 & Brass C36000 Electrical & Thermal Machining.

CNC Micro-Channel Milling in Pure Copper C11000 Cold Plates 500 × 500 HD

CNC Micro-Channel Milling in Pure Copper C11000 Cold Plates

High-speed diamond endmills machine 0.3mm wide by 3.0mm deep micro-cooling fins with zero burrs, maximizing convective heat transfer coefficients for GPU and laser cooling.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
Request Quotation for Similar Geometry
High-Speed Automated Swiss Turning of Brass C36000 Fittings 500 × 500 HD

High-Speed Automated Swiss Turning of Brass C36000 Fittings

Operating at 8,000 RPM, our dual-spindle Swiss lathes turn threaded hydraulic connectors, metric nipples, and valve seats with sub-second cycle times and ±0.005mm accuracy.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
Request Quotation for Similar Geometry
Silver, Gold & Bright Tin Plating for Zero Contact Resistance 500 × 500 HD

Silver, Gold & Bright Tin Plating for Zero Contact Resistance

Electroplated coatings conforming to ASTM B545 (tin) and ASTM B700 (silver) prevent surface copper oxidation while guaranteeing high solderability and low contact resistance.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
Request Quotation for Similar Geometry
Optical Metrology & Four-Point Probe Conductivity Testing 500 × 500 HD

Optical Metrology & Four-Point Probe Conductivity Testing

Non-contact vision measurement systems verify micro-hole centers, accompanied by eddy-current conductivity meters confirming minimum 100% IACS purity.

  • Machined with calibrated multi-axis kinematics minimizing tool deflection
  • GD&T true position inspected within ±0.005mm using automated CMM
  • Full material mill certs, heat treat data, and FAI documentation provided
Request Quotation for Similar Geometry

Capabilities & Quality Protocols

Every part manufactured from Copper C11000 & Brass C36000 Electrical & Thermal Machining adheres to international metallurgy standards and rigorous metrology protocols.

Material Specifications & Properties

  • C11000 Copper: 99.90% Cu | Electrical: 101% IACS | Thermal: 390 W/m-K
  • C36000 Brass: 60-63% Cu, 2.5-3.7% Pb, balance Zn | Machinability: 100%
  • Plating: Bright tin, matte tin, silver (5-15µm), gold (hard/soft), electroless nickel
  • Joining: Vacuum furnace brazing, silver soldering, TIG welding, ultrasonic bonding

Metrology & Quality Assurance

  • Zeiss PRISMO 3D CMM Metrology with scanning resolution down to 0.9µm
  • Keyence Optical Non-Contact Flash Measuring System for micro-features
  • XRF Spectrometry for raw metal alloy composition verification
  • AS9102 Form 1, Form 2, and Form 3 First Article Inspection (FAI) packages

Ready to Prototype or Scale Copper C11000 & Brass C36000 Electrical & Thermal Machining?

Upload your 3D CAD models (.STEP, .IGES, .SLDPRT, .X_T) or 2D technical drawings (.PDF, .DWG) to receive an interactive quote with comprehensive Design for Manufacturability (DFM) feedback in under 2 hours.

Upload CAD Files Now

Frequently Asked Questions

Common engineering questions regarding tolerances, material traceability, and turnaround for Copper C11000 & Brass C36000 Electrical & Thermal Machining.

Why is pure copper challenging to machine compared to brass? +
Pure copper is ductile and gummy, causing chips to adhere to cutting tools. We use specialized polished carbide inserts with razor-sharp rakes and high-pressure coolant.
What is C11000 ETP Copper? +
Electrolytic Tough Pitch (ETP) copper contains 99.9% pure copper with carefully controlled oxygen, providing the highest commercial electrical and thermal conductivity.
What plating is best for copper electrical busbars? +
Bright or matte electro-tin plating (5–10µm) is the industry standard for preventing copper oxidation while maintaining excellent electrical contact and solderability.
Is C36000 brass lead-free? +
Standard C36000 contains 2.5–3.7% lead for chip breaking. For potable water or strict RoHS compliance, we also machine Eco-Brass (C69300) and lead-free C27450.
💬

Connect on WeChat

Scan the QR code or search WeChat ID to speak directly with our Shenzhen engineering team.

WeChat ID: JYH-Prototype
JYH AI Assistant · 智能客服
Online 24/7 · 全天在线
Get Instant Quote
Shenzhen High-Tech Industrial Park
+86 137 1457 8126