White Manganese Brass Die Cast Alloys (UNS C99700) - Mechanical Properties

White manganese brass UNS C99700 has a copper content of not less than 54%.

The following table shows the mechanical properties of UNS C99700 die cast alloys as a function of heat treatment.

Temper Tensile Str. Yield Str. Elong.
M04 448MPa (65ksi) 186MPa (27ksi) 15%

Equivalent materials to UNS C99700 copper alloy are provided below:

  • ASTM B176
  • ASTM B30

The chemical composition of UNS C99700 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 54 min
Zinc, Zn 19-25
Manganese, Mn 11-15
Nickel, Ni 4-6
Lead, Pb 2
Tin, Sn 1
Iron, Fe 1
Aluminum, Al 0.50-3.0

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