Chrisrobe Posted January 24, 2022 Share Posted January 24, 2022 Hello there guys, I posted along time ago and I'm finally coming back to this as it's been annoying me as to what it could be. i found this years ago , it's a solid iron piece, very magnetic, extremely hard though surprisingly brittle, I'm a metal worker so I typically know my metals, though I'm stumped to what this could be , I cut off this section on an industrial band saw and it took 8 hours.. I applied some nitric acid and it's exposed some tiny dark spots, ( these are not porous, they're on the surface of the material and didn't show without etching) has anyone previously etched a material to expose this grain, and if so, please let me know what you think it is. thank you Quote Link to comment Share on other sites More sharing options...
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