UNS C99740 Special Sand Cast Alloy - Mechanical Properties

Nov 21 2012

UNS C99740 has a copper content of not less than 55%.

The following table shows the mechanical properties of UNS C99740 sand cast alloy as a function of heat treatment.

Temper Tensile Str. Yield Str. Elong.
M01 380MPa (55ksi) 220MPa (32ksi) 6%

The chemical composition of UNS C99740 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 55-60
Zinc, Zn 17-23
Manganese, Mn 11-14
Nickel, Ni 5-6
Bismuth, Bi 4
Tin, Sn 1.5-2.0
Aluminum, Al 1.0-1.4
Iron, Fe 0.6-1.0
Silicon, Si 0.05
Lead, Pb 0.05

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