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Re: Channel

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>From the 5th edition manual (copyrighted 1947 & reprinted 1959) that I
have, the only channel with a flange width of ~3.25" is a 12C30.  The
flange with is 3 1/8" and flange mean thickness is 1/2".

Hope that helps,


On Mon, 23 Oct 2000, Roger Turk wrote:

> Michael,
> With a flange width of ~3.25", it is definitely *not* a Junior Channel.  I 
> will check my 1948 AISC manual within an hour and get back to you, but, it 
> looks like it might be a 12C30, 12MC30.9 or 12MC32.9.
> A. Roger Turk, P.E.(Structural)
> Tucson, Arizona
> Michael Zaitz wrote:
> >>Roger
> Could you provide me the sectional properties for a 12L&J11.8.  Field
> measurements give the flange to be ~3.25 in. wide and the section is 12 in.
> deep.  I could not get to the member to accurately measure the flange
> thickness.<<