From: Scott E Maxwell <smaxwell(--nospam--at)engin.umich.edu>
Date: Mon, 5 Jun 2000 13:02:53 -0400 (EDT)
Roger & Harold,
Thanks for the info...
Harold had it exactly right...there was a line refering to "intermediate
billet-steel". I had assumed that it was 40 ksi but wanted verification.
On Mon, 5 Jun 2000, Sprague, Harold O. wrote:
> Reference CRSI Design Handbook, 1952. I was using rebar for teething in
> The ASTM A 305 specification was for the deformations on rebar, and had
> nothing to do with physical properties. The physical properties for
> reinforcing steel were contained in the ASTM A 15 (Billet-steel), A 16
> (Rail-steel), or A 160 (Axle-steel).
> The most commonly used reinforcing steel was the A 15 Intermediate. You
> might find a reference to "intermediate billet-steel" which would be the 40
> ksi rebar.
> ASTM A 15 deformed bar reinforcing steel was available in the following
> grades and yield strengths:
> Grade Yield point (min)
> Structural 33 ksi
> Intermediate 40 ksi
> Hard 50 ksi
> Harold Sprague
> > -----Original Message-----
> > From: Scott E Maxwell [SMTP:smaxwell(--nospam--at)engin.umich.edu]
> > Sent: Monday, June 05, 2000 8:59 AM
> > To: seaint(--nospam--at)seaint.org
> > Subject: Yield strength of older rebar
> > Is anyone familiar with ASTM 305 for reinforcing steel? I am looking at a
> > building built around 1957 that specifies ASTM 305 for the rebar. Would
> > this have a yield strength of 40 ksi, or something else?
> > Thanks,
> > Scott Maxwell