Beryllium Copper Forgings (UNS C17500) - Mechanical Properties

The following table shows the mechanical properties of UNS C17500 forgings as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Rockwell
B C F 30T
TB00 - 293MPa (42ksi) 50 - - -
TF00 102mm (4in) 794MPa (115ksi) 92 - - -

Equivalent materials to UNS C17500 copper alloy are the following:

  • ASTM B441
  • ASTM B534
  • MIL C-81021
  • SAE J461
  • SAE J463

The chemical composition of UNS C17500 copper alloy is outlined in the following table.

Element Content (%)
Cobalt, Co 2.4-2.7
Beryllium, Be 0.4-0.7
Silicon, Si 0.2
Aluminum. Al 0.2
Iron, Fe 0.1
Copper, Cu Remainder

Copper and the elements mentioned in the above table together constitute 99.5% of this alloy.

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