Beryllium Rods UNS C17300 - Mechanical Properties

Sep 27 2012

Beryllium UNS C17300 has a copper content of not less than 97.7%.

The following table shows the mechanical properties of UNS C17300 rods as a function of heat treatment and thickness.

Temper Thickness Tensile Str. Elong. Rockwell Fatigue Str.
B C F 30T
TB00 0 469MPa (68ksi) 48% 6 - 62 - -
TD04 9.525mm (0.375 in.) 772MPa (112ksi) 15% 95 - - - -
TD04 25.4mm (1 in.) 724MPa (105ksi) 15% 95 - - - -
TD04 25.4mm (1.1 in.) 689MPa (100ksi) 15% 95 - - - -
TF00 0 1255MPa (182ksi) 6% - 39 - - -
TH04 0.375 in. 1379MPa (200ksi) 3% - - - - -
TH04 1 in. 1344MPa (195ksi) 5% - - - - -
TH04 1.1 in. 1310MPa (109ksi) 3% - - - - 283MPa (41ksi)

Equivalent materials to UNS C17300 copper alloy are ASTM B196 and ASTM B197.

The chemical composition of UNS C17300 copper alloy is outlined in the following table.

Element Content (%)
Beryllium, Be 1.80-2.00
Lead, Pb 0.20-0.6
Silicon, Si 0.2
Aluminum, Al 0.2
Cobalt, Co 0.20 min
Copper, Cu Balance

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