Does it have any solder on it? If not it is a perfect candidate
for precipitation hardening. Heat it to 1370F with good flux
protection (this is called solution annealing). Then quench it.
After this heat it to 550F for 1 hr(this is the precipitation or
aging part of the process). It will become quite hard. If it has
solder joints then I would just do the second part and heat it to
550F for 1 hr. It will get quite a bit harder but not as hard as is
possible on the solution annealed material.
This is very interesting and I wasn’t familiar with this method of
work hardening. Does this method work with other metals or just the
annoyed properties of Sterling. In addition, would this apply to
Metal Clays? If so, which ones?
Thanks for the bounty of