Phosphor Bronze Flat Products (UNS C53400) - Mechanical Properties

Phosphor bronze UNS C53400 has a copper content of not less than 94.2%.

The following table shows the mechanical properties of UNS C53400 flat products as a function of heat treatment.

Temper Tensile Str. Rockwell
B C F 30T
H02 427MPa (62ksi) 70 - - -
H04 552MPa (80ksi) 86 - - -
496MPa (72ksi) - - - -
H06 627MPa (91ksi) 91 - - -
H08 676MPa (98ksi) 94 - - -
H10 703MPa (102ksi) 94 - - -
M20 275MPa (40ksi) - - - -
338MPa (49ksi) - - - -
O60 - 28 - - -
275MPa (40ksi) - - - -
324MPa (47ksi) 28 - - -

Equivalent materials to UNS C53400 copper alloys are the following:

  • ASTM B103
  • ASTM B139

The chemical composition of UNS C53400 copper alloy is outlined in the following table.

Element Content (%)
Tin, Sn 3.5-5.8
Zinc, Zn 0.3
Iron, Fe 0.1
Lead, Pb 0.8-1.2
Phosphorous, P 0.03-0.35
Copper, Cu Remainder

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