Oxygen Free – COPPRROD Industries Pvt Ltd

COPPRROD Industries Pvt Ltd

Oxygen Free

Oxygen Free

Upward continuous casting technology provides top quality Oxygen Free copper wire rods with excellent conductivity, surface finish, ductility with homogenous grain structure and without harmful porosity. Oxygen Free High Conductivity (OFHC) copper rods are produced using LME Grade-A copper cathodes with 99.99% purity meeting international standards. These rods have a huge advantage when compared to traditional Electrolytic Touch Pitch (ETP) copper rods.
These are produced in 4 sizes viz 8, 12.5, 16 and 20 mm.

Comparison of OFHC and ETP copper rods

Material OFHC rods ETP rods
Chemical Composition Cu min (%) 99.99 99.90
oxygen max (%) 0.0010 Around 0.400
Density (g/cm3) 8.94 8.94-8.89
Gas absorption at high temp Extremely low Relatively low
Microstructure homogeneity Excellent OK
Electrical conductivity (%) 102 101
Thermal conductivity (W / m-k) 391 381
Deep drawing quality Excellent OK
Oxide scale adhesion Excellent OK
Resistance to H Embrittlement Excellent Poor