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Copper content of 59-81 Lincoln Memorial cents?
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<p>[QUOTE="Midas, post: 50489, member: 2761"]Lincolns before 1982 were in fact 95% copper and 5% tin (with the exception of 1943 Steel cents)</p><p><br /></p><p>Weight of a Lincoln Cent is 3.11 grams which 2.95 grams is copper.</p><p><br /></p><p>A troy ounce weighs 31.1 grams</p><p>A troy pound is 12 troy ounces or 373.20 grams.</p><p><br /></p><p>An "avoirdupois" counce (what I like to call a "supermarket" ounce) is around 28.35 grams.</p><p><br /></p><p>Precious metals are sold via grams, kilograms, troy ounces and troy pounds. Copper, tin and aluminum are considered base metals and I believe they are not sold like Au, Pt, Pd, and Ag. </p><p><br /></p><p>So, with that said, here are both cases:</p><p><br /></p><p>$1.4285 per troy pound equals $.0038277 per gram ($1.4285 divided by 373.20) multiplied by a copper cent weight of 2.95 grams and your answer is $.01129 of copper value per Lincoln cent before 1982. You are right! The value of the copper melt of a Lincoln cent is worth more than $.01 if it is bought and sold via troy pounds.</p><p><br /></p><p>Now, an avdp. pound is 453.60 grams and using the same math, $1.4285 divided by 453.60 grams is $.003149 per gram multiplied by 2.95 equals $.009290287 per pre-1982 cent...still close to a "wash" between pure melt value and one cent. This is assuming that the refiner doesn't charge anything to take Lincoln cents and refine the copper back into pure form. </p><p><br /></p><p>So to answer your question, if copper is sold via troy pounds, then there is more melt value in a Lincoln than the cent itself. It is traded via avdp. ounces, a Lincoln cent is still worth more per unit than the raw copper value.[/QUOTE]</p><p><br /></p>
[QUOTE="Midas, post: 50489, member: 2761"]Lincolns before 1982 were in fact 95% copper and 5% tin (with the exception of 1943 Steel cents) Weight of a Lincoln Cent is 3.11 grams which 2.95 grams is copper. A troy ounce weighs 31.1 grams A troy pound is 12 troy ounces or 373.20 grams. An "avoirdupois" counce (what I like to call a "supermarket" ounce) is around 28.35 grams. Precious metals are sold via grams, kilograms, troy ounces and troy pounds. Copper, tin and aluminum are considered base metals and I believe they are not sold like Au, Pt, Pd, and Ag. So, with that said, here are both cases: $1.4285 per troy pound equals $.0038277 per gram ($1.4285 divided by 373.20) multiplied by a copper cent weight of 2.95 grams and your answer is $.01129 of copper value per Lincoln cent before 1982. You are right! The value of the copper melt of a Lincoln cent is worth more than $.01 if it is bought and sold via troy pounds. Now, an avdp. pound is 453.60 grams and using the same math, $1.4285 divided by 453.60 grams is $.003149 per gram multiplied by 2.95 equals $.009290287 per pre-1982 cent...still close to a "wash" between pure melt value and one cent. This is assuming that the refiner doesn't charge anything to take Lincoln cents and refine the copper back into pure form. So to answer your question, if copper is sold via troy pounds, then there is more melt value in a Lincoln than the cent itself. It is traded via avdp. ounces, a Lincoln cent is still worth more per unit than the raw copper value.[/QUOTE]
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Copper content of 59-81 Lincoln Memorial cents?
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