What is the hardness of your wrought firestain free alloys
as annealed and work hardened? It is my understanding that the
firestain free alloys are softer than silver copper alloy sterling
and much closer to fine silver in hardness.
Jim, Our firestain free (Bright) sterling silver alloys have been
developed to have a hardness as near as possible to standard
sterling silver. They are marginally softer in the annealed state,
harden quicker and are harder at a 75% worked stage than standard
sterling silver. They are also heat treatable, that is, can be
hardened from the annealed state.
A hardness graph, which will show they are not anywhere near as soft
as fine silver, also a solution treatment table and other
can be found at www.apecs.com.au /products/bright
silver. Tony Eccles.