Leaded Commercial Bronze Rod UNS C31400 – Mechanical Properties

Sep 27 2012

UNS C31400 leaded commercial bronze has a copper content of not less than 87.5%.

The following table shows the mechanical properties of UNS C31400 rod as a function of heat treatment.

Temper Thickness Tensile Str. Yield Str. Elong. Rockwell Shear Str.
B C F 30T
OS050 25.4 mm (1 in) 225 MPa (37 ksi) 83 MPa (12 ksi) 45% - - 55 - 165 (24 ksi)

The chemical composition of UNS C31400 copper alloy is outlined in the following table.

Element Content (%)
Copper, Cu 87.5-90.5
Lead Pb 1.3-2.5
Iron, Fe 0.1
Zinc, Zn Balance

Equivalent materials to UNS C31400 copper alloy include

  • ASTM B140
  • MIL V-18436

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