High-purity copper wire scrap (99.9%-99.99% Cu), particularly Millberry grade, is a valuable, recycled material used in electrical, construction, and automotive industries. It consists of unalloyed, uncoated, and unburnt wire, frequently sourced from high-grade telecommunication and electrical cables. Prices vary by grade and cleanliness, with bare bright copper attracting the highest value.
Key Grades and Specifications
Common Applications
Specifications
| Millberry / Bare Bright Wire | 99.99% pure, clean, uncoated, unalloyed copper wire, typically over 16 gauge. This is the highest-value scrap. |
|---|---|
| Berry / Candy Wire | Clean, untinned, uncoated, unalloyed copper wire, not smaller than No. 16 B&S wire gauge. |
| Insulated Wire Scrap | Copper wire covered in plastic or rubber insulation, which requires stripping. |
| Technical Specs | Often sold with specifications stating: No burnt wire, no excessive oxidation, and free of tin, lead, zinc, or aluminum contamination. |
| Recycling & Manufacturing | Melted down to produce new copper rods, ingots, and wire products. |
| Electrical Industry | Re-purposed for high-conductivity components, cables, and motors. |
| Infrastructure & Construction | Used in plumbing, roofing, and structural components. |
