UNS C49255 Copper-Zinc-Bismuth Rods - Mechanical Properties

Nov 15 2012

Copper-zinc-bismuth alloy UNS C49255 has a copper content of not less than 58%.

The following table shows the mechanical properties of UNS C49255 rods as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Elong. Shear Str. Fatigue Str.
H01 32mm (1.26in) 430MPa (62ksi) 30% 210MPa (30ksi) 240MPa (34ksi)
  32mm (1.26in) 430MPa (62ksi) 40% - -
  32mm (1.26in) 480MPa (69ksi) - - -
M30 30mm (1.18in) 430MPa (62ksi) 40% - -

The chemical composition of UNS C49255 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 58-60
Bismuth, Bi 1.7-2.9
Tin, Sn 0.5
Nickel, Ni 0.1-0.3
Iron, Fe 0.1
Phosphorous, P 0.1
Silicon, Si 0.1
Selenium, Se 0.02-0.07
Lead, Pb 0.01
Cadmium, Cd 0.01
Zinc, Zn Remainder



 

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