well found this in the bottom of the buckets

[4719dave]

245043245044
https://www.belmontmetals.com/wp-content/uploads/2017/09/2505-2531-Low-Melting-Alloy.pdf
this is what I found

[richhodg66]

Interesting. How big are those ingots?

Melting at 158 degrees? Sounds like cerrosafe which is useful stuff. Or you could sell it to someone with a shot dripper for making water fowl shot.

Not sure Bismuth will alloy with lead? Surely someone on here knows.

[4719dave]

Pulled up Belmont spec sheet
Bismuth 50
Lead 26.7
Tin 13.3
Cadmium 10.0

[Traffer]

They make "fusible link alloy" for fire sprinkler systems. There are different temp ranges. 158° is about in the middle of the range.
I would like to get some for making chamber molds. Probably a lot cheaper than cerrosafe.

[lightman]

I'm not sure how useful those would be but they are sure interesting. Interesting enough that I would keep one of them.

[4719dave]

Well I just happen to have some
They make "fusible link alloy" for fire sprinkler systems. There are different temp ranges. 158° is about in the middle of the range.
I would like to get some for making chamber molds. Probably a lot cheaper than cerrosafe.

[RED BEAR]

I would say it certainly looks like what you have but i have never delt with it before so really cant say. Wish i could be more help.

[4719dave]

I make sinkers too and it shrinks Just enough that the sinkers fall out of the mold but I really had to mix it with a Lotta lead

[glaciers]

Melting at 158 degrees? Sounds like cerrosafe which is useful stuff. Or you could sell it to someone with a shot dripper for making water fowl shot.

Cerrosafe is expensive, but it is reusable, and has known shrinkage or predictability for measuring chambers.

[redhawk0]

I'd be a bit concerned about the Cadmium. The blend you have does contain 10% and it's a cancer causing agent. Personally...I wouldn't mess with it....but that's just me.

redhawk

[4719dave]

Yes I’m not it’s going back we’re i bought it

[fatelk]

It’s worth about $20 per pound.

[EDG]

That is expensive and useful material but it contains the very poisonous cadmium. It is easy to use it as a low temp casting alloy and maintain control of the cadmium but I would not shoot it into the environment.