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those trace elements that you would be looking for:- are they still going to be there after the material has gone through many, many weld heats?
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I believe so, they track meteorite contamination of the lunar surface by looking at things like PGE (platinum group elements), which are not likely to oxidize away before iron in a welding operation.
Iron meteorites are full of the non-volatile stuff that didn't burn off during the birth of the solar system, and was too heavy to float away from the center of the new-born planets/asteriods - I bet a few minutes at 2300 F would have little effect.
Thanks for that very good synopsis of the ebay auction copy, BSMStar!
I'm curious about what levels of these trace elements are in commercial steel, now...time to do some research...
