[TowerTalk] 4130? Maybe - maybe not.

[Eric Rosenberg]

Steve,

Will there be rust problems with SAE 1026 or 1027 carbon steel
alloy pipe? Does the pipe need to be treated? 

Eric 

>--- Original Message ---
>From: K7LXC@aol.com
>To: aa4lr@arrl.net, wd3q@erols.com, towertalk@contesting.com
>Date: 5/7/01 12:05:23 PM
>

>In a message dated 5/7/01 12:38:40 PM Pacific Daylight >Time,
aa4lr@arrl.net writes:
>
>> Frankly, if you are trying to judge between 7075 and >>6061,
I'd go with 6061. 7075 isn't much stronger, and it >>can be really
expensive. 6061 is pretty common. 
>
>    I agree and all of the above is true.
>
>>  If 6061 doesn't have enough strength, just bite the >>bullet
and go with 4130 chrome-moly steel. 4130 is much >>stronger than
any kind of aluminum you can find, with >>yeild strengths to
90,000 psi and beyond. 
>
>    Don't forget, guys, there ARE other carbon steel alloy >tubes
besides chromoly. They're isn't as strong as 4130 >but most people
don't need it. It's also less expensive. >An SAE 1026 or 1027
has approximately 65,000 psi yield 
>strength (good for 90% of the applications I'm involved >in)
and is about 50% the price of 4130. I hate to see >people spend
money that they don't have to.
>
>Cheers,   Steve   K7LXC
>Tower Tech 
>




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