A supplier here in New Zealand (Golden West) advertises a
non-tarnish stg silver. They say this about it:
-easier to work
-hardness 58 HV
-melts 830C-895C (1526F-1643F)
As they don't disclose what's in it, does anyone here have
any clues as to what's in the remaining 7.5%? Maybe tin is the
alloying component, but I don't think the sil/tin phase diagram
goes up to these temps at any point.
I don’t remember seeing anything further on this, but 7% tin
would have a solidus of 850C, but a liquidus of about 920C. A 7%
zinc alloy would have a solidus of about 840C and a liquidus of
about 880C. Either of these are close.
If you hear (have heard) any follow-up could you please pass it