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RE: FEMA Welding Requirements

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Title: RE: FEMA Welding Requirements

>Also, FEMA and/or AISC has removed
>ASTM A36 specification from rolled
>shapes. There will be exceptions
>such as channels, zees, and
>plates/bar stock. The material to
>be specified is now ASTM A992 for
>structural WF, H shapes, W etc for
>the moment resisting frames, I
>beleive that is the designation.
>There are no flats , plates or bar
>produced in ASTM A992.

ASTM A36 has not been removed (it still exists as an ASTM specification). However, you are correct that wide-flange shapes are ASTM A992 (Fy = 50 ksi) now. You could still order them as A36, but you'd get something just like ASTM A992 and pay more to boot! Also, you're correct that M, S, HP, channels, angles, and plates are still most lilely specified as A36. You may be able to get these items routinely as A572 grade 50.

A roadmap for proper material specification is included in the new 3rd Edition AISC LRFD Manual. See here:"">

A slightly older version of that roadmap can be found here:

Hope this helps.