This copper has a very high hardness and high resistance to electrical conductivity.
It is also used in welding more specifically resistance welds projections, where pressures are extreme. They are mainly used in the form of inserts.
PRESENTATION OF THE RAW MATERIAL:
|RWMA CLASS||RWMA NUMBER||DESCRIPTION||CU (INCL. AG)||Ni Co||And||Be||Pb||AI|
|4||17200||BERYLLIUM COPPER||REM.||20% There is no + Co, MIN Ni + Fe + Co 0.6%||.2 0 MAX.||1.8 MAX.||0.02 MAX.||0.2 MAX.|