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Lee says it will rot your pot out but most of the casters on here say they have used it for years with no side effects. Found some on my shelf and put it with my casting supplies and plan on using every bit of it as needed.Quote:
Originally Posted by N1YDP
The worst solder aid used is the sal-ammoniac used to clean the solder irons. That stuff would rust, rust.
Add my 4% Sb, 1% Cu 95% Pb solidus near 575F, while I could still pull the probe out.
2% cu, 585F.
That's a very small change of melting point for the change of copper. Copper is supposed to have the greatest effect on melting point. Clearly the effect is highly modified by the other elements present.
Good info, thx. This list along with Zinc and other metals such as Tin and Pewter that might be of interest to bullet casters would make a good sticky.Quote:
Originally Posted by wiljen
Interesting that Sb reduces temp much more than Sn, Cu increases. Someone have a number for the 0.3% babbit compounded alloy (Goodsteel)?
Here is some more melting point information.
Attachment 156880 from: http://www.engineeringtoolbox.com/me...ls-d_1269.html
and
Attachment 156881 from: https://www.americanelements.com/meltingpoint.html
I found the data kind of neat. The links (as long as they shall live) have a whole bunch more but I felt this edited data was more in-line with casting.
It's been too long now popper. I can't remember, and that's a detail I didn't write down. Sorry!Quote:
Originally Posted by popper
im starting to think it is zinc, im going to have to get some muriatic acid, will it fizz even if its only 1-3%? also, it never floated like the zinc ww's I missed that I pulled out of the same batch?
If you have a lyman mould master lead furnace, #2 alloy melting range will be printed on the temperature dial along with other ranges for pure, WW's, etc.Quote:
Originally Posted by MikeS
I did some alloying this past wknd. Melted down 40+ lbs of Foundry Type, and then used a little to help SOWW alloy into WW+. I didn't add the seperate tin. So I expected it to be softer than it was. I checked it for HARDNESS, expecting it to come out at 12-13 Brinell. It came out at 15 Brinell. I know I weighed everything correctly. And I was very careful to keep the pot and alloy at 680-710 degrees. I used two different thermometers, the turkey fryer has a good wind screen and I put a tarp 6ft upwind, and the cast iron pot holds its heat well. So I guess that SOWW ingots were not as advertised. So now I have 125lbs of #2 alloy I didn't really want. I've already have 75lb. I guess I'll have to waste pure lead to soften it up as I use it.
Hey , Walks ,, ( late to the show ),,how much pure lead did you end up adding to your 40lb. BHN 15 mix ??
coffee's ready ,, Hootmix.
Thank you so much for this.
Phase diagram for lead-antimony alloy:
https://www.researchgate.net/figure/...fig2_324604359
Attachment 303793
Attachment 303794
Pb-Sn phase diagram:
https://www.researchgate.net/figure/...fig3_280576991
Attachment 303796
Attachment 303795