Copper’s versatility isn’t just about pure copper—in many industrial applications, specific copper alloys deliver tailored performance. Whether you need extra strength, superior corrosion resistance, or enhanced machinability, selecting the right alloy is crucial. In this blog, we explore five widely used copper alloys, their unique properties, and the applications that benefit most from each grade.

1. C10100 (Electrolytic Tough Pitch Copper)

Key Properties:

  • Electrical Conductivity: ≥ 100% IACS

  • Thermal Conductivity: 390 W/m·K

  • Machinability: Moderate

Ideal Uses:

  • Busbars and electrical conductors

  • Cable lugs and connectors

  • High‑current switchgear components

Why Choose C10100?
If maximum conductivity is your priority—such as in power distribution panels or grounding systems—C10100 ensures minimal power loss and excellent heat dissipation.

2. C11000 (Oxygen‑Free Electronic Copper)

Key Properties:

  • Conductivity: ≥ 101% IACS

  • Minimal Oxygen Content (< 0.02%)

  • Excellent Weldability

Ideal Uses:

  • Vacuum and cryogenic equipment

  • High‑reliability connectors in aerospace and medical devices

  • RF and microwave components

Why Choose C11000?
For critical electronic or vacuum applications, oxygen‑free copper prevents embrittlement and ensures long‑term reliability.

3. C83600 (Free‑Cutting Brass‑Bronze Blend)

Key Properties:

  • Lead Content: 2–3% for machinability

  • Tensile Strength: ~ 310 MPa

  • Machinability Rating: 80 (ASTM standard)

Ideal Uses:

  • Precision‑machined components like terminal blocks and fittings

  • Turned parts requiring tight tolerances

  • Rapid‑production CNC applications

Why Choose C83600?
Its exceptional machinability lets you achieve fine features and smooth threads, reducing cycle times and tooling wear.

4. C92700 (Tin Bronze)

Key Properties:

  • Tin Content: 5%

  • Wear Resistance: High

  • Corrosion Resistance: Excellent

Ideal Uses:

  • Pump impellers and valve stems

  • Marine hardware and seawater fittings

  • Bearing and bushing applications

Why Choose C92700?
In high‑wear or corrosive environments, tin bronze delivers durability while maintaining dimensional stability under load.

5. C95500 (Tellurium Copper)

Key Properties:

  • Tellurium Content: 0.5–1.0%

  • Machinability Rating: 85–90

  • Conductivity: ~ 70 % IACS

Ideal Uses:

  • Electrical switchgear components

  • Decorative architectural hardware

  • Heat exchanger tubes

Why Choose C95500?
Tellurium copper combines good conductivity with superior machinability, making it ideal for complex shapes and decorative finishes.

Selecting the Right Alloy: A Quick Checklist

Alloy Conductivity Machinability Corrosion Resistance Typical Application
C10100 ★★★★★ ★★★☆☆ ★★★☆☆ Power distribution
C11000 ★★★★★ ★★☆☆☆ ★★★★☆ Vacuum/electronics
C83600 ★★★☆☆ ★★★★★ ★★☆☆☆ CNC machined fittings
C92700 ★★☆☆☆ ★★☆☆☆ ★★★★★ Marine & pump parts
C95500 ★★★★☆ ★★★★☆ ★★★★☆ Architectural & switchgear

Use this checklist to map your project requirements—whether electrical performance, machining speed, or environmental durability—against the strengths of each alloy.

📞 Ready to Source Precision Copper Alloy Components?

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