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Re: W Shape question

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Both shapes were Canadian wide flanges, made specifically for the Can. market.  Algoma Steel the only Canadian manufacturer of wide flanges got out of that business about 2-3 years ago.  A couple of American mill said they would make them for Canada.
Perhaps they decided to make them available generally to North 
Gary Hodgson

On 15 Oct 2003 at 21:26, CanitzCF(--nospam--at) wrote:

> To all -
> While recently reviewing a set of structural design drawings, I
> noticed a W21x55 specified. Since neither the AISC's 9th Ed ASD nor
> the 2nd Ed LRFD list this particular shape, my initial reaction was
> that it was a typo(i.e., should have been a W21x57). Upon checking
> "Availability of Structural Steel Shapes" in MSC however, said shape
> is listed as well as a W21x48 that is also not listed in the steel
> tables. Is there something special about this particular shape (I
> don't have the 3rd Ed LRFD so it may be listed in that publication)?
> Thanks,
> Charles Canitz, PE
> Annapolis, MD

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