[Towertalk] mast strength

[K7LXC@aol.com]

In a message dated 12/24/02 11:20:42 AM Pacific Standard Time, k9ot@mhtc.net 
writes:

> Since schedule 80 is twice as thich as schedule 40 they are not the same
>  strength.

    Thickness doesn't have anything to do with the specified yield strength 
of the material. The thickness has more to do with resisting the bending 
moment of the mast.
(I'm not an engineer so excuse me if I haven't gotten into the technical 
aspects and reasons.)

    I haven't seen any real published specs on either Schedule 40 or 80 but 
understand that the yield that Schedule 80 is around 35 kpsi.

Cheers,
Steve     K7LXC
TOWER TECH