TRBN4 (CuNiBe)


TRBN4 (CuNiBe)

CuNiBe 'C-17510'

CuCoNiBe C-17510

Description Of Material

CuNiBe copper alloy contains; approximately 0,3% Cobalt, 1,8% Nickel and 0,4% Beryllium. This material gains considerably good hardness with good electrical and thermal conductivity after hot forging and heat treatment processes.

Chemical Composition

Cu Co Be Zr Ni Si Other
Rest >0,3 0,2-0,6 1,4-2,2


DIN : 2,0850 ASTM: C17510 RWMA: CLASS III

Mechanical Proporties

Tensile Strenght (Rm) N/mm² : 640-760
Yield Strenght (Rp 0,2) N/mm² : 500-650
Elongation (A5) % : Min 8
Hardness (HB 30) : 240-280
Elastic Modulus : 138 x 10³ N/ mm²

Physical Proporties

Density : 8,86 g/ cm³
Specific Heat : 0,40 j/g.k
Electrical Conductivity : 24-30 MS/ m
Electrical Conductivity (I.A.C.S.) : 34-48 %
Termal Conductivity : 210-310 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. It uses rarerly as plunger tips in Aluminium Die Casting industry. It uses also 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 too.

C17510 - CuNiBe Technical Datasheet

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