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irnman

Lead Substitutes

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Hello irnman, I was looking into Tungsten and found it not to swift in our line of work. Its much denser then lead, but unfortunately it is not possible to cast it because it's melting point is in excess of 6000F. I was told possibly mix of epoxy resin and tungsten powder might be the area I should be considering. Since then I have been awfully busy and have failed to check into it further. Maybe you could check into it and see if you could use this application. Good luck and keep us posted.

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I have poured straight Tin. It pours about the same as lead in a lee melting pot. Melting temp is about 525. Actually it pours a lot easier but it's harder to break off the spru. It's brittle.

The price of Tin has doubled in the past year.

Last year to date, the price of tin on the LME (London Metal Exchange)

was $2.11 a pound. Todays cash price is $4.17.

I pour a lot of Bismuth Tin alloy. It melts at 241 degrees. But takes 5 times longer to set up or freeze.

Bismuth by itself pours OK but it breaks of like glass. It is not smooth where you break off the spru. I don't know what the price of bismuth has done. I'm afraid to ask.

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