
Originally Posted by
Howder1951
I used to work in a mini mill and when we rolled rebar, the specs were very forgiving, as a result it was rolled from billets of various grades that did not meet their respective grade for whatever reason. As a result, there was some fine steel going in to the rebar, however some of it was so hard it would actually shatter on the concrete floor when dropped. Bottom line; it could be almost anything depending on where it came from.
All said, this is a very cool application, and there have been a multitude of rebar projects from all over!
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