[TowerTalk] overhead truss for 80M rotary dipole

[Peter Voelpel]

Thank you Stan, I found some data as well:

http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=MA6061T8

http://asm.matweb.com/search/SpecificMaterial.asp?bassnum=MA6061T6

73
Peter

-----Original Message-----
From: Stan Stockton [mailto:wa5rtg at gmail.com] 
Sent: Montag, 21. Juli 2014 18:12
To: Peter Voelpel
Cc: <towertalk at contesting.com>
Subject: Re: [TowerTalk] overhead truss for 80M rotary dipole

I believe this is the answer:

6061-T6 

Ultimate tensile strength        38.0 ksi
Yield Strength                35.0 ksi
Elongation                8%

6061-T8

Ultimate tensile strength        45.0 ksi
Yield Strength                40.0 ksi
Elongation                8%

73...Stan, K5GO

Sent from my iPad

> On Jul 19, 2014, at 10:09 PM, "Peter Voelpel" <dj7ww at t-online.de> wrote:
> 
> Hi Jim,
> 
> Do you have any data sheets which support that?
> 
> I do not see the 25% stronger then T6:
> 
> http://www.allianceorg.com/pdfs/alumext/6061t8.pdf
> 
> 73
> Peter
> 
> 
> 
> -----Original Message-----
> From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Jim
> Thomson
> ##  DX eng now supplies 6061-T8  alloy  tubing  in .120 wall etc.  The T8
> alloy is a full 25 %  stronger than the T6
> 
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