Beryllium copper alloys continue to stand out in the world of high-performance metals — thanks to their exceptional strength, conductivity, corrosion resistance, and fatigue endurance. These unique advantages make BeCu indispensable across aerospace, electronics, defense, tooling, and precision engineering.

Below is a detailed breakdown of the top 5 most popular beryllium copper alloys — C17200, C17510, C17500, CuCoNiBe, and C17300 — along with what sets each one apart.

1. C17200 — Top Beryllium Copper Alloys

C17200 is the most widely used and widely recognized beryllium copper alloy. Containing 1.8–2.0% beryllium, it offers:

  • The highest strength among all BeCu grades (tensile strength above 200,000 psi)
  • Rockwell hardness comparable to steel
  • Excellent fatigue strength, wear resistance, and corrosion resistance

Applications:
Aerospace components, precision molds, electrical connectors, high-stress mechanical parts.

2. C17510 — The Strength + Conductivity Balance

C17510 is engineered for applications requiring a balance between high electrical conductivity and mechanical durability. Its refined composition gives it remarkable:

  • Good tensile strength
  • Improved conductivity
  • Stability under continuous stress or vibration

Applications:
High-reliability springs, electrical connectors, relays, and switch components.

3. C17500 — Tough, Workable, and Heat-Resistant

With 0.4–0.7% beryllium and 2.4–2.7% cobalt, C17500 is formulated for exceptional hot and cold workability. It offers:

  • High thermal resistance
  • Good toughness and durability
  • Superior formability

Applications:
Tooling, cast or molded components, welding tools, and other applications requiring dimensional stability under heat.

4. CuCoNiBe — Advanced Strength for Extreme Environments

CuCoNiBe combines cobalt, nickel, and beryllium, resulting in one of the most advanced BeCu variants. This alloy is known for:

  • Exceptional mechanical strength
  • Excellent corrosion resistance
  • High stability in extreme environments

Applications:
Aerospace systems, defense components, high-performance instrumentation.

5. C17300 — The Machinability Star

C17300 includes 0.2–0.6% lead, significantly enhancing its machinability without compromising performance. It retains much of the strength of C17200 while offering:

  • Faster, cleaner machining
  • Improved precision
  • Great dimensional stability

Applications:
Electronic connectors, switches, fasteners, and components demanding both accuracy and durability.

Need high-performance beryllium copper alloys?

DOMADIA™ supplies premium C17200, C17510, C17500, CuCoNiBe & C17300 for aerospace, electronics, and precision tooling.

✔ High strength
✔ Superior conductivity
✔ Reliable, certified quality

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