On Saturday, May 13, 2017 at 4:18:06 PM UTC-4, Rosemary wrote:
replying to PIW, Rosemary wrote:
So, if I place a nickel silver sheet in a kiln at 600 degrees for two hours it
will be hardened?

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for full context, visit http://www.polytechforum.com/metalwo...er-313971-.htm

No. You can't heat-harden nickel-silver (50% - 80% Cu; 5% - 30% Ni; 10% - 35% Zn). It will work-harden, but not heat-harden.

There are some nickel alloys, such as certain Monels, Inconels, and Hastelloy, that can be heat-hardened by solution heat-treatment. But not the material commonly called "nickel-silver" (which contains no silver).

If you hear otherwise, your source is wrong.

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Ed Huntress