Lead bullets Matter
There are three kinds of men: The ones that learn by reading. The few who learn by observation. The rest of them have to pee on the electric fence and find out for themselves. - Will Rodgers
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.
Last edited by popper; 09-29-2015 at 08:42 PM.
Whatever!
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.
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Interesting that Sb reduces temp much more than Sn, Cu increases. Someone have a number for the 0.3% babbit compounded alloy (Goodsteel)?
Whatever!
Here is some more melting point information.
from: http://www.engineeringtoolbox.com/me...ls-d_1269.html
and
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.
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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?
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An unarmed man is a subject.
A disarmed man is a slave.
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.
Last edited by Walks; 02-28-2018 at 03:03 AM.
I HATE auto-correct
Happiness is a Warm GUN & more ammo to shoot in it.
My Experience and My Opinion, are just that, Mine.
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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
Last edited by justindad; 08-31-2022 at 11:26 PM.
Pb-Sn phase diagram:
https://www.researchgate.net/figure/...fig3_280576991
Last edited by justindad; 08-31-2022 at 11:28 PM.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |