Phosphor Bronze Wires (UNS C52400) - Mechanical Properties

Phosphor bronze UNS C52400 has a copper content of not less than 90%.

The following table shows the mechanical properties of UNS C52400 wires as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Elong.
H01 2mm (0.08in) 641MPa (93ksi) -
H02 2mm (0.08in) 814MPa (118ksi) -
H04 2mm (0.08in) 1014MPa (147ksi) -
OS035 2mm (0.08in) 455MPa (66ksi) 70%

Equivalent materials to UNS C52400 copper alloys are the following:

  • ASME SFA5.21
  • ASTM B139
  • ASTM B159
  • SAE J461
  • SAE J463

The chemical composition of UNS C52400 copper alloy is outlined in the following table.

Element Content (%)
Tin, Sn 10 - 11
Zinc, Zn 0.2
Iron, Fe 0.1
Lead, Pb 0.05
Phosphorous, P 0.03-0.35
Copper, Cu Remainder

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