[TowerTalk] Stainless Steel Mast

[Craig Ervin]

Glad were all in agreement that the 1/4" walled 10 foot stick of stainless steel mask is more than up to the challenge, plus it won't rust  :) 
 
They make structural pipe too.  ( not sold at Lowe's or Home Depot)  This what U.S tower uses to make there tower legs.  ASTM A53 Gd. B, A500 Gd. B ( F-y=46 ksi)  structural pipe 
 
You should order a mask as stated by the manufacture of your tower.  i.e 1026 DOM tubing.  
 
Here is a good website, as they list the yield strength http://www.onlinemetals.com/steelguide.cfm
 
Plus they have a weight calculator too.
http://www.onlinemetals.com/calculator.cfm
 
here a link to some A513 - Type 5 Steel DOM tubing
http://www.onlinemetals.com/merchant.cfm?id=283&step=2&top_cat=197
 
Or take the guess work out and order from here.
http://www.texastowers.com/steelmasts.htm
 
 
Craig
 
 


--- On Tue, 11/3/09, K7LXC at aol.com <K7LXC at aol.com> wrote:


From: K7LXC at aol.com <K7LXC at aol.com>
Subject: Re: [TowerTalk] Stainless Steel Mast
To: towertalk at contesting.com, z50r at yahoo.com
Date: Tuesday, November 3, 2009, 3:01 PM



In a message dated 11/3/2009 10:15:20 A.M. Pacific Standard Time,  
towertalk-request at contesting.com writes:

>  Ok hopefully this helps vs more  confusion.?


    QSL that.

>  The difference between pipe and tube is simply in the way it  is sized



        That's one parameter but  not even close to the real story. A whole 
chapter of my Up The Tower book is  devoted to masts. Like our own resident 
PE, KR7X, said - you've got to look at  the yield strength figure and pipe 
(for the most part) doesn't have one. 

Cheers,
Steve     K7LXC
_www.championradio.com_ (http://www.championradio.com) 

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