My oddest metal experience . . . A few years ago I had 12" or so of a 1.5"sq cold finish steel bar end picked up from the "drops" bin at a local steel supplier. I began using it from the "clean" end (away from the raw bar end) but shortly the remaining length just fell apart, roughly in halves. Apparently a fold or cold seam occurred early in the rolling process which never adhered or welded together, and it couldn't be seen. Cheers, Harry MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.