You can argentium through stuller. But watch out!!! It is brittle
and will break apart when hot.
I think you'll find that there are a variety of ways to deal with
these types of problems. The short version is:
if your Argentium Sterling (AS) is brittle you are almost
certainly quenching it when it is still too hot: generally speaking
it needs to lose all redness before your quench.
if it breaks apart when you have it under the torch you are
overheating it: AS has lower solidus and liquidus temps than regular
Since both of these problems are related to over-heating I'd suggest
you try doing your torch work under reduced lighting. I turn off my
overhead lights. That way you can judge the color temperatures much
better and thereby learn how to avoid overheating.
The bottom line is that if you are keenly aware of how hot your
metal is you should not be having these problems. AS is somewhat more
sensitive to overheating than regular sterling and successful use of
AS does reguire some adjustment in that regard. It's not that big a
deal once you get used to it.
Some earlier versions of the alloy were... well, let's just say that
the mix wasn't quite right and they tended to be much more prone to
the brittleness and break-up problems you've mentioned. Current
formulations have corrected that.
in The City of Light
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