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Copper - OFE

Custom Metal Copper (Cu-OFHC) Materials

Material TypeCopper
Atomic Weight63.546
Atomic Number29
Color/AppearanceCopper, Metallic
Thermal Conductivity400 W/m.K
Melting Point(°C)1,083
Coefficient of Thermal Expansion16.5 x 10-6/K
Theoretical Density (g/cc)8.92

Copper (Cu) General Information:

It is reddish-orange in color with a melting point of 1,083°C, a density of 8.92 g/cc, and a vapor pressure of 10-4 Torr at 1,017°C. 

According to the oxygen content and impurity content, oxygen-free copper is divided into No. 1 and No. 2 oxygen-free copper. The purity of No. 1 oxygen-free copper reaches 99.97%, the oxygen content is no more than 0.003%, and the total impurity content is no more than 0.03%; the purity of No. 2 oxygen-free copper reaches 99.95%, the oxygen content is no more than 0.005%, and the total impurity content is no more than 0.05%.

Oxygen-free copper has no hydrogen embrittlement, high electrical conductivity, good processing performance, welding performance, corrosion resistance and low temperature performance. The standards for oxygen content in different countries are not exactly the same, and there are certain differences.



Copper WireФ0.01-4mm99.9%-99.9999%
Copper BarФ5-200mm99.9%-99.9999%
Copper RodФ5-200mm99.9%-99.9999%
Copper Plate≥2mm99.9%-99.9999%
Copper Sheet≥2mm99.9%-99.9999%
Copper TubeOD20-160mm.Thick2-20mm99.9%-99.9999%
Copper PipeOD20-160mm.Thick2-20mm99.9%-99.9999%
Copper Foil0.01-2mm99.9%-99.9999%
Copper Ingot1kg, Or Customize99.9%-99.9999%
Copper Lump1kg, Or Customize99.9%-99.9999%
Copper PelletsФ1-50mm99.9%-99.9999%
Copper TargetCustomize99.9%-99.9999%
Copper CrucibleCustomize99.9%-99.9999%
Copper Backing PlateCustomize99.9%-99.9999%
Copper CubeCustomize99.9%-99.9999%
Customized CopperCustomize99.9%-99.9999%

OFC (oxygen-free copper): metallic copper with a purity of 99.995%. Generally used in electrical and electronic applications such as audio equipment, vacuum electronic devices, cables, etc. Among them, there are LC-OFC (linear crystallized oxygen-free copper or crystalline oxygen-free copper): the purity is above 99.995% and OCC (single crystal oxygen-free copper): the highest purity, above 99.996%, and is divided into PC -OCC and UP-OCC etc.

Single crystal oxygen-free copper manufactured using UP-OCC technology (Ultra Pure Copper by Ohno Continuous Casting Process) has no directionality, high purity, corrosion resistance, and extremely low electrical impedance, making the wire suitable for high-speed and high-quality signal transmission.

Copper (Cu) Metal Element Overview:

We smelts any of the metals and most other advanced materials into rod, bar or plate form, or customer provide drawing produce.
We sell these different shape copper emetal materials by unit weight or piece for different use in research area and for new proprietary technologies.

For example:Copper Wire, Copper Bar, Copper Rod, Copper Plate, Copper Sheet, Copper Tube, Copper Pipe, Copper Foil, Copper Ingot, Copper Lump, Copper Pellets, Copper Target, Copper Crucible, Copper Backing Plate, Copper Cube. Other shapes are available by request.

Copper Backing PlateCopper Backing Plate
Copper BarCopper Bar
Copper CrucibleCopper Crucible
Copper CubeCopper Cube
Copper FoilCopper Foil
Copper IngotCopper Ingot
Copper LumpCopper Lump
Copper PelletsCopper Pellets
Copper PipeCopper Pipe
Copper PlateCopper Plate
Copper RodCopper Rod
Copper SheetCopper Sheet
Copper TargetCopper Target
Copper TubeCopper Tube
Copper WireCopper Wire
Customized CopperCustomized Copper