Cu OFE
CUIVRE - CuC2

*Unified Numbering System (USA)

Characteristics and main uses

Cu-OFE is a high conductivity oxygen-free copper with a minimum of 99.99% Cu. It offers the advantages of hard pitch electrolytic copper (ETP) and phosphorus deoxidized copper. High purity with less than 5 ppm oxygen and absence of deoxidizers represents a minimum electrical conductivity of 101% of IACS as well as no susceptibility to hydrogen embrittlement. Cu-OFE has very good formability and can be brazed and welded, making it superior to Cu-ETP in these aspects.
The main areas of application are electrical, electronic and communication components as well as vacuum technology.

CU-OFE copper is resistant to natural and industrial atmospheres as well as maritime air, drinking and service water, non-oxidizing acids, alkaline solutions and neutral salt solutions.
Copper is not resistant to ammonia, halide, cyanide and hydrogen sulfide solutions and atmospheres, oxidizing acids and sea water (especially at high flow rates).

Main uses

Radar components, electrical engineering components, conductors, contacts and terminals, printed circuits and flexible circuits

1 poor | 2 average | 3 good | 4 very good | - no info

Comments on heat treatments

The electrical conductivity depends on chemical composition, the level of cold deformation and the grain size. A high level of deformation as well as a small grain size decrease the conductivity