UNS C99750 Sand Cast Alloy - Mechanical Properties

Nov 21 2012

UNS C99750 has a copper content of not less than 55%.

The following table shows the mechanical properties of UNS C99750 sand cast alloy as a function of heat treatment.

Temper Tensile Str. Elong. Rockwell Fatigue Str.
B C F 30T
M01 448MPa (65ksi) 30% 77 - - - 128MPa (19ksi)
TQ50 517MPa (75ksi) 20% 82 - - - -

Equivalent materials to UNS C99750 copper alloy are provided below:

  • ASTM B176
  • ASTM B30

The chemical composition of UNS C99750 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 55-61
Zinc, Zn 17-23
Manganese, Mn 17-23
Nickel, Ni 5
Iron, Fe 1
Lead, Pb 0.50-2.5
Aluminum, Al 0.25-3.0

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