Copper Alloy 752 (C75200)
Nickel Silver, 18 (Cu-Ni-Zn Alloy) Tubing

Copper Alloy C752 (UNS C75200), also known as Nickel Silver 65-18, is a copper-nickel-zinc alloy known for its corrosion resistance and good mechanical properties. Because of its superior magnetic and conductive properties, it is widely used in the power generation industry. It is also commonly used in electrical, marine and other industrial applications where durability is essential.

C752 Copper Alloy Designations

  • UNS Number: C75200
  • CDA Number: 752
  • EN Number: CW409J
  • EN Symbol: CuNi1818Zn20
  • Wieland: N09

Chemical Composition:

  • Copper (Cu): 63.00 – 66.50%
  • Iron max (Fe): 0.25%
  • Lead max (Pb): 0.05%
  • Zinc (Zn): 34.50%
  • Nickel (Ni): 16.50 – 19.50%
  • Magnesium (Mn): 0.50%

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

Available Forms:

  • Straight Lengths:
    • OD: 0.125″ to 1.000″
    • Wall Thickness: 0.010″ to 0.040″
  • Copper Coils:
    • OD: 0.125″ to 0.750″
    • Wall Thickness: 0.015″ 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: B122 for Chemistry Only
  • Please reach out if you have a specific material specification you need us to review.

Industry Applications

Power Generation

  • Stators
  • Motor components

Electrical

  • Connectors
  • Resistors

Surgical Instruments

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