Beryllium Copper Flat Products UNS C17000 - Mechanical Properties

Beryllium copper UNS C17000 has a copper content of not less than 98.3%.

Tabulated below are the mechanical properties of UNS C17000 flat products as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Elong. Rockwell Fatigue Str.
B C F 30T
TB00 4.78 mm (0.188in) 483MPa (70ksi) 45% 60 - - 58 -
TD01 4.78 mm (0.188in) 552MPa (80ksi) 25% 80 - - 70 -
TD02 4.78 mm (0.188in) 634MPa (92ksi) 15% 92 - - 77 -
TD04 4.78 mm (0.188in) 758MPa (110ksi) 5% 99 40 - 81 -
TF00 4.78 mm (0.188in) 1138MPa (165ksi) 7% - 35 - - 36
TH01 4.78 mm (0.188in) 1186MPa (172ksi) 5% - 37 - - 276MPa (40ksi)
TH02 4.78 mm (0.188in) 1255MPa (182ksi) 4% - 39 - - 290MPa (42ksi)
TH04 4.78 mm (0.188in) 1310MPa (190ksi) 3% - 40 - - 296MPa (43ksi)
TM00 4.78 mm (0.188in) 724MPa (105ksi) 20% - 20 - - -
TM01 4.78 mm (0.188in) 793MPa (115ksi) 18% - 23 - - -
TM02 4.78 mm (0.188in) 883MPa (128ksi) 15% - 27 - - -
TM04 4.78 mm (0.188in) 979MPa (142ksi) 12% - 32 - - -
TM05 4.78 mm (0.188in) 1069MPa (155ksi) 9% - 36 - - -
TM06 4.78 mm (0.188in) 1158MPa (168ksi) 6% - - - - -

The chemical composition of UNS C17000 copper alloy is outlined in the following table.

Elements Content (%)
Beryllium, Be 1.60-1.85
Cobalt, Co 20 min
Aluminum, Al 0.2
Silicon, Si 0.2
Copper, Cu Balance

Equivalent materials to UNS C17000 copper alloy are:

  • ASTM B194
  • ASTM B196
  • ASTM B570
  • SAE J461
  • SAE J463

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