TRB4 (CuCoNiBe)


TRB4 (CuCoNiBe)

CuCoNiBe 'C-17500'

C17500 CuCoNiBe

Description Of Material

CuCoNiBe Copper Alloy contains approximately 1% Cobalt, 1% Nickel, 0,5% Beryllium. After hot forging and heat treatment processes; this material gains considerably good hardness, grain size, electrical and thermal conductivities. It is possible to reach different combinations of electrical conductivity and hardness by changing the heat treatment conditions.

Chemical Composition

Cu Co Be Zr Ni Si Other
Rest 0,8-1,3 0,4-0,7 0,8-1,3


DIN : 2,1285 ASTM: C17500 RWMA: CLASS III

Mechanical Proporties

Tensile Strenght (Rm) N/mm² : 650-800
Yield Strenght (Rp 0,2) N/mm² : 500-700
Elongation (A5) % : Min 8
Hardness (HB 30) : 220-250
Elastic Modulus : 135 x 10³ N/ mm²

Physical Proporties

Density : 8,85 g/ cm³
Specific Heat : 0,42 j/g.k
Electrical Conductivity : 24-30 MS/ m
Electrical Conductivity (I.A.C.S.) : 38-48 %
Termal Conductivity : 210-320 W/ m.K
Coefficient of Thermal Expansion : 20-100 ºC 17,0 X 10-6 /K
Working Temparature : 480 °C maks.


Welding electrodes, electrode holders and seam welding discs in resistance welding. Plunger tips in Aluminium Die Casting industry. Injection nozzles, cooling inserts in plastic injection industry. Moulds for casting of non-ferrous material. Chill moulds in casting of brass and bronze material. Due to its good surface quality, homogen and fast cooling rate this alloy has an excelent working performance.

C17500 - CuCoNiBe Technical Datasheet

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