pjogrinc
12-21-2007, 12:23 AM
Just picked up a bunch of ~1 lb factory ingots of tin and lead/tin mix. They are about 12 inches long, 1/2 inch by 1/3 inch. MFG is National Lead CO.
Some of the bars were stamped tin with no numbers on them, bright and shiney, and BNH of 7 which is correct. I have many more bars that have a stamping on them of 111, 888 or 999. Probably doesn't mean a thing, but anyone have an idea ?? I've tested 2 of the bars and they have a BNH of 10. What is the hardness of 50/50, 63/37 or other readily available lead alloy, excluding 20-1, 30-1 etc. Any recomendations for determining content ?? Price was right, $0.39/lb, scrape lead price. Also picked up 500 + lbs of ingots that have a BNH of 6 to 7. They new the source of these ingots and he use to make sinkers with a mix of 50 to 1. Now to change that to 25-1 for my Borchardt. Any help would be appreciated.
Some of the bars were stamped tin with no numbers on them, bright and shiney, and BNH of 7 which is correct. I have many more bars that have a stamping on them of 111, 888 or 999. Probably doesn't mean a thing, but anyone have an idea ?? I've tested 2 of the bars and they have a BNH of 10. What is the hardness of 50/50, 63/37 or other readily available lead alloy, excluding 20-1, 30-1 etc. Any recomendations for determining content ?? Price was right, $0.39/lb, scrape lead price. Also picked up 500 + lbs of ingots that have a BNH of 6 to 7. They new the source of these ingots and he use to make sinkers with a mix of 50 to 1. Now to change that to 25-1 for my Borchardt. Any help would be appreciated.