if the sheet bends easy, it’s not hardened. We use to call it
’deadsoft’. When the sheet is springy, it’s hard.
The degree of force to bend that sheet gives you approx an idea how
hard it is. It’s not accurate but it give’s you a hint of the metal
One can give it a stroke with a jewellers hamer, the intendation
aswell as the sound gives you info about the hardenness of silver. How
deeper the intendation, how softer the silver sheet. How clearer the
sound how harder the sheet.
Same procedure can be used with a spring driven center punch where
the intendation of the center punch stroke gives you the info. Make
tree pieces of silver, dead soft, medium and hard, use the
centerpunch methode and keep them to compare other silver sheets. Make
sure that you use the same force each time with that center punch.
Use the same (workbench) surface you used for making the tree
examples. Other surfaces will give you other results.
Other people will give you other methodes. Use the one which helps
you the best.
Enjoy and have fun.