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I Forge Iron

Mystery Metal

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Hello all. A few days ago I got a pile of random pieces of scrap metal all welded together that a guy from my church picked up at a construction site and gave to me. how kind... most of it was just 5/8 inch round mild steel. But some of the pieces were bars 1 and 3/4 by 1/4 and about three feet long. on the sides there was in imprint coming out that said "PSI" and holes on each end. I quench tested a bit I twisted I cut off the end, very hard to cut with a hack saw, and it hardened, so its high carbon. I was thinking it might be leaf spring, but I've never come across it before so I'm not sure what exactly I'm looking at. So If anyone knows the identity of the mystery metal, I would be very pleased. thanks.


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