[TowerTalk] Galvanizing ChromeMoly?

[Frank Donovan]

Doc,

For comparitive purposes, Dillsburg Aeroplane Works in Dillsburg, PA
sells 2" od x 0.188" wall 4130 Cr-Mo tubing for $9.00 per foot.
This is raw Cr-Mo steel, not galvanized.

If you do not galvanize the mast it will slowly rust; however, its unlikely
to lose any significant strength in your lifetime or mine.   You can paint
the mast to delay the rust process.  Beware: a painted or galvanized
2" od mast will not fit into a 2" thrust bearing!

73!
Frank
W3LPL
donovanf at erols.com


----- Original Message -----
From: doc <kd4e at verizon.net>
To: Towertalk Reflector <towertalk at contesting.com>
Sent: Tuesday, January 04, 2005 8:31 PM
Subject: [TowerTalk] Galvanizing ChromeMoly?


> Just read this and wondered, does ChromeMoly really need to be
> hot dip galvanized, or treated in any way?
>
> Also, I may have stumbled upon a local source of ChromeMoly (someone
> I met knows of a racing car shop nearby).  Is $250. a reasonable
> price to pay for a 20 foot length of ChromeMoly for a mast?
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> For Sale - Mast - Chrome Moly - 20 ft. X 2"
> The mast consists of 16 ft. of 2.0" O.D. x .200" wall plus a welded top
> section of 4.5 ft. of 1.6" O.D. x .160" wall. Overall length - 20
> ft.-6". The entire Cr-Mo mast was hot dip galvanized and is un-used.
> Prefer pick-up in Santa Barbara, CA., but will ship. Price - $250.00
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> --
> Thanks! & 73, doc kd4e
> A blessed and joy-filled New Year to all!
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