K7LXC at aol.com wrote: > Howdy, TowerTalkians -- > > While steel pipe isn't rated for strength, I've seen a yield figure > of > 25 or 30,000 psi. I think it was even mentioned on TT but I couldn't find > it See this: http://www.merchantsmetals.com/literature/Spec_Schedule40_Pipe_Galvanized.pdf Rick N6RK