Hi Howard - good paper on your topic here at the IPC Midwest Conference - 
see session S04, Gerjan Diepstraten's ppt.

Dave



Howard Stevens <[log in to unmask]> 
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[TN] SN100C nickel and germanium depletion






Good Morning Technetters.

It is believed by our industry that SN100C suffers from nickel depletion 
(which necessitates adding nickel back into the alloy).  The nickel comes 
at .05%.  When it reaches .03%, it fails to function as a grain refiner. 
Also, the germanium is supposed to deplete, necessitating adding germanium 
back into the alloy.  Is anybody aware of the specific studies that 
reference the nickel and germanium depletion?

Thanks muchly for your input.

Howard Stevens
Metallic Resources, Inc.

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