what is the difference between Red copper and gold copper?
New Guy
what is the difference between Red copper and gold copper?
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In what instance are you seeing it?? Where at?? Might be able to tell you more if we know this.Originally Posted by qb08
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coated copper no2 and bright bare no1 ?
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yup..
Metal Recycling Entrepreneur
sounds more like red brass and yellow brass
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I agree with Bear, I never heard of gold copper. I mean copper is copper, maybe he is talking about a coated copper but never seen gold coated copper.
Metal Recycling Entrepreneur
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The copper that looks red or orange has a varnish on it used to insulate.
New Guy
I am looking in an old computer.. Many of the coils are a dark red non insulated wire... then there is the standard copper wire in it??
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Like Phantoms said it has a varnish on it . Take a file and scratch it and the copper color will come thru. You find it on the cones in monitors and tvs as well.
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Yeah it's coated copper or coated aluminum. You'll also find this in some electric motors. Always scrape the wire with a file or knife to make sure that it's copper and not aluminum.
Metal Recycling Entrepreneur
Pure copper has light red or brown color. When copper is oxidized. it is green. Copper can form alloys with other kinds of metal. Here are three common ones.
Brass is the alloy of copper and zinc and it is known for the yellow color.
Bronze is the alloy of copper and tin which is known for its green color.
White brass is the alloy of copper and nickel. Its color is like silver.
Last edited by metalrecyclingmachine; 12-20-2012 at 02:16 AM. Reason: add contents
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Yes but the coils and he's talking about are made with copper windings and not alum. Alum. would heat up in a coil and change value (ohms or impedance), and that would not be good in a tuned circuit.
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