Here is an excerpt from our Info papers on Shibuichi. Hope this
25% & 15% SHIBUICHI
These are two classic Japanese alloys containing 25% and 15%
fine silver in a copper base. The alloys are both tough and
hard, yet maintain excellent cold forming properties. The 15%
is softer and more colorable, while the 25% is springy and
reticulates the best. The metals are a creamy pink color in
the natural state. The 25% is an excellent reticulation alloy
and may be depletion plated and reticulated using the methods
described in most texts. The approximate melting point is
1432F and the annealing range is 1150F to 1300F.
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