Copper Alloy 510 (C51000)
Phosphor Bronze, 5%Sn Tubing (Bourdon Tube)

Alloy C510 tubing, also known for use in Bourdon Tube applications, is a high-strength copper-tin-phosphorus alloy known for its excellent mechanical properties, wear resistance, and corrosion resistance. It is widely used for spring applications in gauges due to its superior performance compared to standard brasses and bronzes.

C510 Copper Alloy Designations

  • UNS Number: C51000
  • CDA Number: 510
  • EN Number: CW451K
  • EN Symbol: CuSn5
  • Wieland: B15

Chemical Composition:

  • Copper (Cu): 95.00%
  • Phosphorus (P): 0.03 – 0.35%
  • Iron max (Fe): 0.10%
  • Lead max (Pb): 0.05%
  • Zinc (Zn): 0.30%
  • Tin (Sn): 4.20 – 5.80%

Custom Engineered Shapes and Custom Fabricated Parts are available on request.

Available Forms:

  • Straight Lengths:
    • OD: 0.125″ to 1.000″
    • Wall Thickness: 0.005″ to 0.040″
    • Lengths: 0.125″ to 504″
  • Copper Coils:
    • OD: 0.125″ to 0.750″
    • Wall Thickness: 0.008″ to 0.040″

Coil Formats:

  • Bunch Coils:
    • OD: 0.125″ to 0.144″
  • Level-Wound Coils:
    • OD: 0.156″ to 0.875″

Equivalent Standards

  • ASTM: B103 for Chemistry Only
  • Please reach out if you have a specific material specification you need us to review.

Industry Applications

Industrial

  • Precision and mechanical instruments
  • Springs
  • Components

Electrical

  • Connectors
  • Switches

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