Ed Harris
posted this
30 January 2008
miestro_jerry wrote: Well, I have 100 pounds of range lead on hand, one heavy equipment lead counter balance weight( I think its 50 to 60 pounds, maybe more), 12 pounds of tin and one pig of linotype. What alloy can I make out of this mess, or maybe the best alloy from blending all of this. I may be able to come of with 50 pounds of WW also.
Jerry,
If your “range lead” works out similar to mine, it will resemble about 3% antimony, less than 1% tin and a trace probably 0.005 to 0.010 arsenic. By itself it will be about 12 BHN.
The fork lift counter balance is probably “close” to pure lead, with less than 1% other alloying elements, about 5.5 BHN.
If the linotype is a new pig which hasn't been used, its probably about 20 pounds at 22 BHN. So a quickie estimate yields
100# x 12 BHN = 1200
50# x 5.5 BHN = 275
21# x 22 BHN = 462
171# = 1937
1937 / 171# = 11.32 BHN - good revolver bullet and BPC cartridge alloy “if it casts"
I would melt the range lead, the counter-balance weight and the pig of linotype together and see what hardness you get and see how it casts. If it doesn't cast well I'd add not more than 2 pounds of the tin. Any more would be a waste of metal that's worth about $15/pound!
73 de KE4SKY In Home Mix We Trust From the Home of Ed's Red in "Almost Heaven" West Virginia