Friday, February 1, 2008

RE: ASTM

Thanks,

 

Your comments were what I was thinking, except I had never seen the A518.

 

Jason

 

 

-----Original Message-----
From: Benjamin Maxwell [mailto:enginerd666@yahoo.com]
Sent: Friday, February 01, 2008 1:44 PM
To: seaint@seaint.org
Subject: Re: ASTM

 

Jason,

 

A 496 material is the correct designation for the material used by the Nelson arc welding machines.

 

A 706 material would be acceptable for use, in lieu of A 496, if the contractor intended on providing all-around fillet welds to the structural steel (be prepared to give them an appropriate weld thickness schedule, and don't forget the visual inspection).  Fillet welds work up to #6 or somewhere in there before your cross sectional area to circumference ratio makes it impossible to connect with fillet welds.

 

If you're on a small job, contractors sometimes seem to opt for welding the bars themselves rather than bringing in the specialty equipment for the DBAs.

 

A 518?  From what I see this is an iron casting designation.

 

-Ben

Jason Christensen <jason@wcaeng.com> wrote:

Anyone know what the current ASTM designation for DBA (deformed bar anchor) is?

 

I have some shops coming in specifing A496, another set specifing A706 weldable rebar, and another set with A518. 

 

Just wonding what I should be specifing for just a general application?

 

Jason




Benjamin H. Maxwell, S.E.

 


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