Ag/Cu alloy

[Bloodman14]

Hey, guys, a couple of weeks ago we had the A/C repairman come out for some work, and he left a silver/copper alloy brazing rod, about 10 inches long by 1/8" by 1/16" thick. What would this do for/to a WW alloy? Any other alloy? How can I use this?

[frkelly74]

You need red heat to get those to melt in my experience. I have installed one AC unit. I do not think it will be useful in boolits. Maybe good to "braze" with. Bolt handles and such.

[badbob454]

i think that is silver solder, dont know the composition

[Ronbo256]

Definitely silver solder. It won't help your boolits at all, but depending on the melt temp it's really good at attaching steel parts together permanently. Ag/Cu should have a very high melt point compared to lead/tin solder, maybe as high as 1450 degrees F, but most likely 900-1150 F. Oh, you will need flux to use that silver solder.

[lwknight]

What we use in the A/C breazing is usually 5% or 15% silver with a phosphorus and copper balance. Liquidus at 1300 degrees and fully liquid at about 1450 degrees.

I can't imagine any way to get any use of it in the bullet baking business. It does sell for about $100.00 per pound or $5.00 per stick.