[TowerTalk] Mast advice

[Grant Saviers]

A513 is another and perhaps more common spec for 1026 and 1020 DOM 
tube.  Many wall thicknesses and diameters are made.

http://www.onealsteel.com/carbon-steel-dom-tube-a513-type5.html

ACE galvanizing in South Seattle nicely regalvanized some 3" x 025" for me.

Grant KZ1W

On 10/27/2017 9:03 AM, john at kk9a.com wrote:
> I purchased a 3" mast locally pretty inexpensively with no shipping costs
> using the following process: I bought 1026 DOM from a local steel supplier
> and then brought this tube to a local galvanizer for coating.
>
> 73,
> John KK9A
>
>
> Subject:	[TowerTalk] Mast advice
> From:	Andy Faber via TowerTalk <towertalk at contesting.com>
> Reply-to:	Andy Faber <andrewfaber at ymail.com>
> Date:	Fri, 27 Oct 2017 09:16:38 -0400
>
>
> I’m posting this to both the TT and NCCC reflectors for John, AI6LY, whom I
> helped get a tower permit.  He lives in Scotts Valley, CA (near Santa
> Cruz) and
> needs some advice on a mast.  He asks:
>
> “Andy, please do forward to the reflector. Here's what I need:
>
> 16 to 20 feet
> 2" OD x 0.25 wall
> yield strength > 50ksi
> galvanized preferred
> will pick up within a few hours' drive
>
> I'm going to upgrade the antenna (putting a 2 el 40M above the EX-14). Need a
> high strength mast, 2" OD x .25 wall. Wondered where you got yours or if you
> had suggestions (other than DX Engineering etc.)”
>
> Please reply directly to John.
>
> Thanks and 73, Andy AE6Y
>
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