Whoever purchased these is out of their mind if they purchased only for scrap recovery. Anyone who wants to pay that please PM me and I'll keep you stocked for as long as you'd like.Originally Posted by CTscrapman
A rule of thumb is 1% of Gold (Au) recovered for every gram of high end pins - pins that are gold plated to Mil-Spec requirements (50u plating thickness [u = micro-inches]). In addition to mil-spec these high end pins are in numerous commercial applications designed for high temperature and heavy corrosion environments. As I'm sure you know anything "older" basically pre-1990 will generally have a thicker plating than current commercial applications.
Note: This is not an end all be all, simply the formula many pin "buyers" use when calculating. Recovery rates can vary based on pin size (mass, surface area, etc; deterioration, and a handful of other things).
Pins/toz Max Buying Price Recovery/g Recovery/toz Au Recovery
14.5833 $168.00 4.536 0.146 $250.29
21.8750 $251.00 6.804 0.219 $375.44
29.1667 $336.00 9.072 0.292 $500.58
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