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Re: Welding rebar

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Bob:

I don't think that you even want to weld that old rebar. You'll have to check the chemistry to see if it is even weldable; probably will have to much sulfur content. In the old days, rebar welding was a no-no. I'll let someone else give you a better explanation.

Neil Moore, S.E.


At 08:10 AM 9/3/2004 -0700, you wrote:

I'm writing some specs for butt-welding some 1928 era reinforcing bars.
Does anyone have any idea what the yield strength of that steel may be?
Under Section 6.2.7.1 of AWS D1.4, the welds have to be tested and must
develop 125% of the specified yield strength of the bars.  What do you think
that yield strength may be?  Could it vary by bar size?  I seem to recall
that back then, certain bar sizes were made from square bars.  I think the
smaller bars were round.  Thank you all in advance.

Bob Garner, S.E.

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