Stainless steel

[fishracepoint]

Hello Everyone
I just need some clarity: No matter how I set up my detector it will not make a peep when I pass stainless steel under the coil.
I dropped a 300 series #10 x 1" sheet metal screw in the grass so I broke out the detector and could not find it. I could see it but the detector could not.
Am I missing something?

 

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[clv]

In all metal mode, no discrimination, and max sen?

 

[fishracepoint]

In all metal mode, no discrimination, and max sen?

I had it in relic mode and sen at 8. I guess it might have been a cheap import screw and the high mineral content in my soil?
It has happened 2 times to me.

OK I just set it to zero desc, max sen, did not ground bal and checked a known 303 stainless bolt and it did see it. I had to get about 3" from the coil but at least it did see it.

thanks for the sanity check

 

[mo dirt diggin]

Double thanks . It helped me out also.

 

[clv]

To turn steel to stainless steel they ad nickle and a few others but mostly nickle, so they will read in the gold/aluminum/nickle area.
There are a lot of grades of S.S, 18-8 being the most common. 18-8 has the least nickle and is still slightly magnetic and will rust. It just rusts a littler slower than regular steel.

 

[Carl-NC]

There is no one "stainless steel" alloy, even in cutlery and utensils. Some stainless items are attracted by a magnet, some are not. Some hit well on a metal detector, some are almost impossible to detect. It can also depend on the metal detector, especially the frequency. It is possible to come up with an alloy that would make even a large knife invisible to a walk-through security metal detector.