I bought some 3 inch and 4 inch irrigation tubing from a company called
Rain-for-Rent, which is a large irrigation supply company with outlets
across the U.S. The stuff I bought was .072 if I remember correctly,
but they also sell a thinner version that's around .070. It worked fine
as a 50 foot guyed mast to hold up some wire dipoles, but the material
is pretty soft and it definitely is not even close to 6061-T6.
73,
Dave AB7E
On 7/29/2010 8:28 PM, Roger (K8RI) wrote:
> On 7/29/2010 11:20 PM, Wilson Lamb wrote:
>
>> I have seen some surplus irrigation pipe very cheap. I think the 3" is
>> about 0.06 wall and there may be a heavier one, maybe 0.09.
>>
>>
> It sounds a bit light to me. I use 0.120, 0.125. and even 0.188 wall
> for typical booms. BUT it depends on both how long a boom and what you
> are going to hand on to it. I don't know what alloy they use for
> irrigation tubing, but structural is typically 6061-T6.
> 0.120 is not all that common except in 6' and maybe 12' lengths. It's
> nice as the consecutive sizes will telescope together without binding.
>
> I have seen a number of articles on using irrigation tubing for
> verticals. I don't recall any for Yagi construction.
>
> 73
>
> Roger(K8RI)
>
>> I have no idea if this would be strong enough, but it's certainly nice
>> material!
>> Wilson
>> W4BOH
>>
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