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Somewhere along the way I came across a way to determine alloy hardness relative to pure lead. It required placing a steel bearing between a piece of pure lead and a piece of alloy and then squeezing them together in a vice. By measuring the indention on both samples and applying a mathematical formula to those measurements one could determine the alloy's hardness. Does anyone know that formula or any other "homemade" means of measuring alloy hardness?
Jack
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