UNS C77000 Nickel Silver Flat Products - Mechanical Properties

Nickel silver UNS C77000 has a copper content of not less than 53.5%.

The following table shows the mechanical properties of UNS C77000 flat products as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Yield Str. Elong. Rockwell
B C F 30T
H04 1mm. (0.04 in.) 689MPa (100ksi) 586MPa (85ksi) 3% 91 - - 77
H06 1mm. (0.04 in.) 745MPa (108ksi) 621MPa (90ksi) 2% 96 - - 80
H08 1mm. (0.04 in.) 793MPa (115ksi) - 2% 99 - - 81
OS035 1mm. (0.04 in.) 414MPa (60ksi) 186MPa (27ksi) 40% 55 - 90 -

Equivalent materials to UNS C77000 copper alloy are provided below:

  • ASTM B122
  • ASTM B151
  • QQ W321
  • SAE J461
  • SAE J463

The chemical composition of UNS C77000 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 53.5-56.5
Nickel, Ni 16.5-19.5
Manganese, Mn 0.5
Iron, Fe 0.25
Lead, Pb 0.05
Zinc, Zn Remainder


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