Phosphor Bronze Flat Products (UNS C52400) - Mechanical Properties

Nov 26 2012

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

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

Temper Thickness Tensile Str. Yield Str. Elong. Rockwell
B C F 30T
H02 1mm (0.04in) 572MPa (83ksi) - 32% 92 - - -
H04 1mm (0.04in) 689MPa (100ksi) - 13% 97 - - -
H06 1mm (0.04in) 793MPa (115ksi) - 7% 100 - - -
H08 1mm (0.04in) 841MPa (122ksi) - 4% 101 - - -
H10 1mm (0.04in) 883MPa (128ksi) - 3% 103 - - -
OS035 1mm (0.04in) 455MPa (66ksi) 193MPa (28ksi) 68% 55 - - -

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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