Leaded Tin Bronze Sand Cast Alloy (UNS C92700) - Mechanical Properties

Leaded tin bronze UNS C92700 has a copper content of not less than 86%.

The following table shows the mechanical properties of UNS C92700 sand cast alloy as a function of heat treatment.

Temper Tensile Str. Yield Str. Elong.
M01 290MPa (42ksi) 145MPa (21ksi) 20%

Equivalent materials to UNS C92700 copper alloy are provided below:

  • ASTM B30
  • ASTM B505
  • QQ C390
  • SAE J461
  • SAE J462

The chemical composition of UNS C92700 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 86-89
Tin, Sn 9-11
Lead, Pb 1.0-2.5
Nickel, Ni 1
Zinc, Zn 0.7
Phosphorus, P 0.25
Antimony, Sb 0.25
Iron, Fe 0.2
Sulfur, S 0.05
Aluminum, Al 0.005
Silicon, Si 0.005

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