Thanks for the suggestions! I have tried the Nickel Institute, I emailed them and am waiting to hear back.
Like moltenmetal suggests, I definitely have to remove the steel. I've thought about both mechanical removal of solder and cutting them out of the frames. Both are definitely options...
Hello everyone! We have a large quantity of paint masks made with nickel inserts soldered into steel frames. Each mask is on average 2' square with around 3 lbs. of nickel per mask. We're trying to recover as much nickel as possible as cleanly as possible to recycle and get a good value. The...