I've just started with Argentium too, and sharing experiences. I've
never cracked so much metal in my life. Some bezels cracked while
cooling down, others when quenching (that's probably my own fault,
it was pretty hot).
The cracking was after repeated heatings and some hammering before
actually soldering anything, so I interpreted it as too much stress,
maybe not fully annealing. (In my head it made sense, but doesn’t
sound so good on paper).
The solder is a bit stubborn. I did use some of the argentium solder
on some sterling things (I assure you, out of pure laziness) and it
seemed to flow ok then, and also blended in well afterward. I am
using handy flux with all soldering. To answer Jim, I always need to
pickle, just to get the hardened flux off. I’m finding that it
polishes normally, like regular sterling would.
Jacqueline Bell Johnson, dba.