i have some 2 lb pure antimony ingots which i want to mix in with my lead...i have got the RCBS casting pot...
any ideas or procedure i should follow
Daniel

I have not done this. Antimony has a very high melting point, 1167 deg.F. According to an old NRA Cast Bullet book: "pulverize the antimony, melt it by special means and mix in an equal amount of lead. The resulting alloy melts at a lower temperature than antimony itself, and its use to harden a larger quantity of lead is within the capability of the ordinary bullet casting furnace."
Sounds like a lot of work.
C.G.B.

Yup. While Antimony is very useful in Cast bullets, it is very hard for the home caster to successfully "alloy" with it. Better to buy an ingot of "hardball" from Rotometals which has the Antimony pre-alloyed and use that to mix.

quote:

Originally posted by cgbach:
I have not done this. Antimony has a very high melting point, 1167 deg.F. According to an old NRA Cast Bullet book: "pulverize the antimony, melt it by special means and mix in an equal amount of lead. The resulting alloy melts at a lower temperature than antimony itself, and its use to harden a larger quantity of lead is within the capability of the ordinary bullet casting furnace."
Sounds like a lot of work.
C.G.B.

This is correct. The alloy of equal parts antimony and lead is what one gets with the recommended procedure for handling straight --that, is pulverize the antimony, melt it by some special means, and mix in equal amount of lead. The resulting alloy melts at a lower temperature then antimony itself, and its use t o harden a larger quantity of lead is within the capability of the ordinary bullet casting furnace.

He copied it from the NRA Cast Bullets book encase you wonder.

thanks for the input , much appreciated

http://www.lasc.us/Fryxell_Book_Contents.htm

With emphasis on: http://www.lasc.us/Fryxell_Boo...ectionMetallurgy.htm

It would be easier to find some babbit alloy or newer pewter, both have a fair amount of antimony. Good luck.

quote:

Originally posted by arkypete:
It would be easier to find some babbit alloy or newer pewter, both have a fair amount of antimony. Good luck.

Roto Metals is the place to get that.