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Bill Cain, S.E. wrote:
> 
> Dave
> 
> A307 ductility derives from A36 Specification (20% in 8" gage length or 23%
> in 2").  A325 ductility derives from A449 Specification (14% in 4 Diameter
> gage length).  The A325/A449 has a higher tensile strength (120 ksi for 1"
> and smaller) than the A307/A36 (58-80 ksi).
> 
> As a general rule, the higher the tensile strength, the LOWER the
> ductility.  So if the plan checker is looking for ductility, the A307 bolts
> have higher ductility.
> 
> Why is he asking anyway?  I assume you are sizing the bolts for the design
> loads. Either should be acceptable providing they meet the design
> requirements.
> 
> Bill Cain, SE
> Oakland, CA
> 
> -----Original Message-----
> From:   Dave Anderson [SMTP:dnae(--nospam--at)home.com]
> Sent:   Tuesday, November 17, 1998 20:04 PM
> To:     seaoc
> Subject:        tilet up wall anchor
> 
> hi everyone
> 
> is anyone has answer for a plan check correction it .
> will be thankful
> 
> the plan check engineer wants me to specify the wall tie anchor
> to A325 steel rod not A307 first he said the reason is ductility after
> that he said is dynamic loading
> any answer
> 
> Thanks
> 
> D.A.  P.E.
> 
> 
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