Eric an anomaly I came across.

[Anonymous]

I read that certain alloys of steel and zinc, depending on how they are cooled can be non magnetic. Have you encountered this phenomena, and how does it react?

 

[Eric Foster]

Hi Vlad,

Chrome steels can be non-magnetic. They react just like a non-ferrous metal and usually have a fast decay as they are not that conductive, relative to copper, aluminium, silver etc.

Eric.

 

[Anonymous]

I have a pin from the aerospace industry that is 3" long and 1/16" in diameter. It is a 300 series vanadium-stainless steel, with zinc and 3% Thorium added. My VLF units, whether in non-motion all metal or in the motion mode do not even want to pick it up. I get a signal like one would get from a nugget at about 1", regardless of axis, and its a bare whisper. For a while I thought the detector was broken, but it did the same on 3 other detectors.[my pulse is down]
I'm wondering now how Monel, Inconel, Beryllium, Scandium and Depleted Uranium will read?