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How to tell the difference between mild steel and core 10

I recently had 2 panels laser cut, one of mild steel and one of core 10 and the panels have not been labelled. I don't have time for them to rust to see the difference and the mild steel one I hoped to paint and not let it rust. Can anyone tell me how to tell which one is core 10 and which is mild steel?

Shenbot Menet
hobbyist - Australia
February 7, 2010

February 9, 2010

Sir:

Perhaps a grind wheel test will do the job. Just take two known samples: 1)mild steel and 2)corten. Put them up to a grind wheel and observe the patterns of sparks that result. Then do the two pannels and see which is which. I suspect that the corten will have a very different spark spray pattern.

Regards,

Dr. Thomas H. Cook
Galvanizing Consultant - Hot Springs, South Dakota, USA

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