Leaded Yellow Brass Centrifugal Cast Alloy (UNS C85700) - Mechanical Properties

Jan 16 2013

Leaded yellow brass UNS C85700 has a copper content of not less than 58%.

Tabulated below are the mechanical properties of UNS C85700 centrifugal cast alloy as a function of heat treatment.

Temper Tensile Str. Yield Str. Elong.
M02 276MPa (40ksi) 97MPa (14ksi) 15%

The chemical composition of UNS C85700 copper alloy is outlined in the following table.

Elements Content (%)
Copper, Cu 58.0-64.0
Zinc, Zn 32.0-40.0
Nickel, Ni 1.0
Tin, Sn 0.50-1.5
Lead, Pb 0.8-1.5
Aluminum, Al 0.8
Iron, Fe 0.7
Silicon, Si 0.05

Equivalent materials to UNS C85700 copper alloy are given in the table below.

  • ASTM B176
  • ASTM B271
  • ASTM B30
  • ASTM B584
  • ASTM B763
  • QQ C390

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