Aluminum 6061, sheet, cast,etc 0.47-0.55 per pound
Copper #1 2.93 per pound
Copper #2 2.75 per pound
#1 insulated wire 1.59 per pound
#2 insulated wire 1.19 per pound
Lead 0.59 per pound
Steel 0.07 per pound
Brass 1.93 per pound
Die Cast 0.93 per pound
304 SS 0.51 per pound
316 SS 0.97 per Pound
Elec Motors 0.24 per pound
Batteries .34 per pound