trevormagee 
You can know the weight of the copper and the steel with some simple calculations. If I remember correctly calculate in inches width x length x height x .383 for the copper. for steel same calculations except X.289 This is the weight of one square inch x the total square inches. For rounds calculate Pie or 3.141 x half diameter or rad then X length. Then x .289 or .383 depending on material. I forgot the square inch weight for aluminum and I have never needed to know lead. These values are a bit over the actual value less then 1 percent. I use them for calculating weights when lifting with cranes with straps and or chains and there easy to remember then the long 6 or 7 digit actual number. These calculations are handy when estimating what some loads will pay.
How I remember. 289 is an old Chevrolet motor. 383 is an old Mopar motor. I have owned both long ago.
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