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1 copper. Copper under this category is similar to bare bright copper but has traces of oxidation. Scrap materials in this grade include bus bars, clippings and clean copper tubing free of fittings, insulation, paint and solder.#2 copper grade. To qualify for this category, the material¬„s copper content should be 94 to 96 per cent. Any unalloyed wire or pipe that has solder, paint, coating and other types of tarnishing falls are classified as #2 copper. Copper fittings with oxidation are generally accepted as long as the damage is not extreme. copper scrap Copper Scrap
