[TowerTalk] 4130 Chrome Molly 1/4" vs 3/16" thickness

[Richard Thorne]

Hello Group,

I'm finalizing my tower project.  Last thing to determine is how much of 
a load I can put on my mast.

I have a 23' 4130 chrome molly mast which has a thickness of 3/16" vs a 
more traditional 1/4" thickness.

Any idea how much yield strength the 3/16 has?  Looks like 1/4" has a 
yield strength of 115,000.

I'm using MARC to calculate loads to be sure I don't overload the mast.  
Right now I'm looking at a C31xr at 1 foot and a D240 at 10' up the 
mast.  I'd like to see if I can safely install a WARC7 at the top at 15'.

Thanks

Rich - N5ZC