huangyhg

welded wide flange (wwf)
i am working with some old drawing from '67 that use the wwf designation. as far as i could find, all of the current wwf designations are no where close to what i am dealing with. so my question is, where can i find specs on old wwf designations. eg: 36 wwf 118, 27 wwf 89, 18 wwf 105, etc.
thanks in advance.
if you are in canada, try the canadian steel manual. it has published data and complete listing for wwf.
regards,
lutfi
my sixth edition of aisc steel manual (1963) indicates standard specs for rolled steel as astm a7, a36 and a373. high strength steel at the time were designated astm a242, a440 and a441.
the designation for wide flange is wf and not wwf. isn't wwf a common acronym for welded wire fabric? it could be the canadian designation like lutfi suggests, but i'm not familiar.
in the us, the closest sizes to ones listed are 36wf135, 27wf84. 18wf105 is listed in aisc 6th edition.
the only wwf designations that i know of for beams was in canada.
i have found the information on the obsolete wwf beams here:
canadian here,
wwf = welded wide flange
versus
wf = wide flange
and of course
wwf = welded wire fabric
for the concrete guys & gals out there
if the wwfs are actually canadian sections, then i would consider analyzing as csa grade 40.8 - or 40 ksi, 280 mpa yield.
having said that, if the beams were kicking around for a while in a shop before being used, they could be as weak as 33 or even 30 ksi (if its an old grade).
drw

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