(Off Topic) Aluminum wire alloy???

Discussion in 'Hangar Flying' started by Aerowerx, Aug 11, 2019.

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  1. Aug 11, 2019 #1

    Aerowerx

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    I just took down a wood antenna mast (ham radio) that has been up maybe 20 years. The antenna part itself was made of 17 gauge aluminum electric fence wire. Although the wood had deteriorated the aluminum wire was still in good shape, although it had the typical aluminum tarnish.

    Anyone know what alloy it would be? Amazingly strong and durable.
     
  2. Aug 11, 2019 #2

    Doggzilla

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    #8 Aluminum wire was common, but they say it likes to break near connection points due to fatiguing, and that it fatigues easier than copper at any point it has bending.

    Titanium wire is also available but I do not know anything about how it fatigues.
     
  3. Aug 11, 2019 #3

    BJC

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    At least one Isolated phase bus duct (high amperage conductor used in a power plant) that I am familiar with is 6061.

    Should work OK for an antenna.


    BJC
     
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  4. Aug 11, 2019 #4

    Aerowerx

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    This is 17 gauge electric fence wire, like farmers would use to confine animals. About the cheapest wire you can get. Less than $0.05 per foot.

    I was just wondering what alloy it is, considering how well it held up for 20 years.
     
  5. Aug 11, 2019 #5

    BJC

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    I was just sharing that 6061 is used in some applications where extremely low electrical resistance, corrosion resistance, and reasonable structural properties are required.

    One might infer that the same or a similar alloy might be used for electric fence wire.


    BJC
     
  6. Aug 11, 2019 #6

    Aerowerx

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    I did try to google it, but no luck on the first 3 pages of results. But I did find one source for 0.12 mm (17 gauge is about 1.4 mm) aluminum wire for braiding cables that was 5154 alloy.
     
  7. Aug 11, 2019 #7

    Doggzilla

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    There is an excellent Wikipedia page on aluminum wiring.

    Apparently it’s widely used in several major fields but requires special attention to connections in order to avoid fires.
     
  8. Aug 11, 2019 #8

    Aerowerx

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    That's for electrical power wiring, not electric fence. With power wiring you do not have to worry about pigs, horses, and cows scratching their backs on it.

    This wire I have seems to be harder than the aluminum electrical power wire I have seen.
     
  9. Aug 11, 2019 #9

    Doggzilla

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    There is actually a section on electric fence wire as well. But I skipped that section as I do not believe I will ever be needing that skill lol

    It does say something about how new alloys since the 70s are much stronger to avoid creep/stretching.

    I’m assuming that’s what it is, and why the other wire you’ve seen is so much weaker. It’s probably because that was the original 1960s stuff and this is the 70s alloys.
     
  10. Aug 11, 2019 #10

    Aerowerx

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    Link?
     
  11. Aug 12, 2019 #11

    pictsidhe

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    One of the 3000 series is very possible.
     
  12. Aug 12, 2019 #12

    Doggzilla

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  13. Aug 12, 2019 #13

    Aerowerx

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    Of course they do! I have a spool of it.

    [General Rant mode](not directed directly at you Doggzilla): I find it interesting that people reply to a thread without reading and understanding the original post. In it you will see that I 1)already have some electric fence wire. 2)it is dirt cheap compared to other types of wire 3)it is amazingly durable 4)All I wanted to know is what alloy it is. [General Rant mode off]
     
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  14. Aug 12, 2019 #14

    BJC

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    And 5) Discounted the input identifying the alloy used in big electrical conductors as 6061.


    BJC
     
  15. Aug 12, 2019 #15

    Doggzilla

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    From your original post it sounded like you had just discovered aluminum wire for the first time.

    So you already have some but this ham radio wire alloy is far better and you would like to know what ally makes it better?

    Just asking to clarify.

    If that is the case it sounds like the early 70s alloys designed with higher tensile strength to avoid stretching.
     
  16. Aug 12, 2019 #16

    Aerowerx

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    From original post: The antenna was about 20 years old.

    From original post: I clearly stated that it was electric fence wire. Not a special alloy for antennas.

    Clarified...,.,
     
    Last edited: Aug 12, 2019
  17. Aug 12, 2019 #17

    Aerowerx

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    No, I did not discount it. But is it relevant? Are big electrical conductors the same alloy as aluminum electric cow fences?
     
  18. Aug 12, 2019 #18

    BJC

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    Fence wire and big conductors both need the same characteristics. 6061 meets those needs, and is used in the big conductors that I mentioned. It is possible that it is used for fence wire too.


    BJC
     
  19. Aug 12, 2019 #19

    BBerson

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    Electric fence wire is quite soft and can be bent and tie wrapped easily. 6061-t6 is brittle and would snap off.
    Not much need for heat treatable 6061 commercial farm wire. I would bet 3003 or 1100 with better corrosion resistance.
     
  20. Aug 12, 2019 #20

    Doggzilla

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    Sounds like it’s probably ACSR cable then.

    Steel cored aluminum that uses an extra hard Aluminum alloy with a small amount of steel wire in the core. Widely used by farmers for electric fences.

    “The aluminium alloy and temper used for the outer strands in the United States and Canada is normally 1350-H19 and elsewhere is 1370-H19 each with 99.5+% aluminium content. The temper of the aluminium is defined by the aluminium version's suffix, which in the case of H19 is extra hard.”

    https://en.m.wikipedia.org/wiki/Aluminium-conductor_steel-reinforced_cable
     
    Last edited: Aug 13, 2019

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