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Bar versus Wire

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I've always assumed this stock (deformed wire) was
used for automated production of stirrups, ties, etc.
by rebar fabricators.  You don't need someone feeding
stock to the bender, you just load a new spool of wire
when the last one is finished (using a forklift, I
suppose).  I have a hard time envisioning a couple of
ironworkers unrolling some number 5 bar into a form.

Gil Brock's post kind of worries me, though.  Does
this ASTM deal with elongation?  I'd be curious to
know if we might be getting shear stirrups with only a
quarter the ductility we think they have.

Mike Hemstad
St. Paul, Minnesota

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