Copper Silicon Alloy Flat Products (UNS C64725) - Mechanical Properties

Nov 30 2012

Copper silicon alloy UNS C64725 has a copper content of not less than 95%.

The following table shows the mechanical properties of UNS C64725 flat products as a function of heat treatment.

Temper Tensile Str. Elong.
HR02 - 8%
500MPa (72ksi) -
HR04 - 6%
550MPa (80ksi) -
HR06 - 4%
590MPa (86ksi) -
HR08 - 2%
650MPa (95ksi) -
HR10 700MPa (102ksi) -
TR02 - 8%
590MPa (862ksi) -
TR04 - 5%
650MPa (95ksi) -

The chemical composition of UNS C64725 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 95 min
Nickel, Ni 1.3-2.7
Zinc, Zn 0.50-1.5
Iron, Fe 0.25
Silicon, Si 0.20-0.8
Tin, Sn 0.20-0.8
Magnesium, Mg 0.2
Chromium, Cr 0.09
Lead, Pb 0.01

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