#2 Copper

No.2 Copper shall consist of miscellaneous, unalloyed copper wire having a nominal 96% copper content (minimum 94%) as determined by electrolytic assay.

Should be free of the following:

• Excessively leaded, tinned, soldered copper wire
• Brass and bronze wire
• Excessive oil content, iron, and non-metallics
• Copper wire from burning, containing insulation
• Hair wire
• Burnt wire which is brittle and should be reasonably free of ash.

 

This is copper pipe that contains any solder, paint or visible corrosion.

The copper used for power cables is also drawn from high conductivity rod but to a thicker size than fine wires. The quality requirements are therefore slightly less stringent. Many specifications for gun metals and bronzes require the presence of both tin and lead so this type of scrap is ideal feedstock. Normally it is remelted and cast to ingot of certified analysis before use in a foundry. Scrap of this type commands a lower price than uncontaminated copper.

 

 

 

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