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how much weight could an oly bar take before snapping?

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Dan Nukem
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2009/07/30 01:16:04 (permalink)
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how much weight could an oly bar take before snapping?

I was just watching a very impressive video of Terry Hollands doing a 420kg deadlift there.
I was watching the bar bending, but then it returned to position

I got a little bit of grief at my last gym as I bent one of the oly bars. The bar I was using was a standard oly bar.

I was just wondering how much weight could an oly bar take before it snapped or bent like a banana at least?


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    galenkia
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:19:22 (permalink)
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    Never seen a bar bent permenantly.Seen them bend considerably though.They must need a hell of a weight to snap.Would be interesting if anyone has seen this happen or can post a pic or video.
    #2
    Dan Nukem
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:21:29 (permalink)
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    galenkia

    Never seen a bar bent permenantly.Seen them bend considerably though.They must need a hell of a weight to snap.Would be interesting if anyone has seen this happen or can post a pic or video.


    The one I was using bent permanently mate.

    Same thing happened last week, but this was from partial squats not deadlifts.
    #3
    galenkia
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:22:33 (permalink)
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    What weight did you have on there Dan?.
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    Lucutis
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:23:45 (permalink)
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    I imagine Ian or Tone will know the answer to this,
     
    Pretty sure the more expensive good quailty bars can bend a far bit more than a cheap uns!





    #5
    Sheeps_Clothing
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:27:50 (permalink)
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    Never seen a bar snap tbh, although i'm guessing it could happen if you were stupid enough to load enough weight on a crap bar.

    Dan; it depends on the bar, its quality and its rating.

    Some bars are only rated to 700lbs, these will bend quite easily.

    Other bars are rated to 1500lbs, obviously these are quite a lot stiffer and should not bend that much, i.e. they may bend with a lot of weight on them but should not bend that much permanently.

    Lastly, a specialist powerlifting bar (Ivanko, Eleiko, Texas Power Bar are some of the best) will bend with decent weight on it, all bars do, however it shouldn't bend permanently and will defo not snap!

    These sorts of bars have had 1200lbs+ on them and have not snapped! They all bend though with serious weight on them. You can even use this to your advantage.
    #6
    Dan Nukem
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:29:59 (permalink)
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    galenkia

    What weight did you have on there Dan?.


    It was this workout mate:
    http://www.ugm.org.uk/t...view__findpost__p__87660

    it was fine up to 260, but at 300kg it warped.
    #7
    Dan Nukem
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:31:11 (permalink)
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    badboy007

    Never seen a bar snap tbh, although i'm guessing it could happen if you were stupid enough to load enough weight on a crap bar.

    Dan; it depends on the bar, its quality and its rating.

    Some bars are only rated to 700lbs, these will bend quite easily.

    Other bars are rated to 1500lbs, obviously these are quite a lot stiffer and should not bend that much, i.e. they may bend with a lot of weight on them but should not bend that much permanently.

    Lastly, a specialist powerlifting bar (Ivanko, Eleiko, Texas Power Bar are some of the best) will bend with decent weight on it, all bars do, however it shouldn't bend permanently and will defo not snap!

    These sorts of bars have had 1200lbs+ on them and have not snapped! They all bend though with serious weight on them. You can even use this to your advantage.


    Ah rite, this explains it mate.

    I expect Terry was using one of these high quality bars.
    The stuff we have is probably the lower rated stuff.
    post edited by Dan Nukem - 2009/07/30 01:36:23
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    Dan Nukem
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:32:42 (permalink)
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    Badboy, here is the vid:
    http://www.youtube.com/watch?v=kV2vSQjTcGo&e

    Looks old and rusty compared to the stuff we have, lol.
    #9
    loz_86
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:34:25 (permalink)
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    a couple of the bars at my gym are tested to 1000kg

    a good quality bar would never really snap i dont think, not enough shear force over a small point

    put a bar over a kerb and drive a 30 tonne truck over it.. it would just bend, not snap

    #10
    galenkia
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:35:16 (permalink)
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    Dan Nukem

    galenkia

    What weight did you have on there Dan?.


    It was this workout mate:
    http://www.ugm.org.uk/t...view__findpost__p__87660

    it was fine up to 260, but at 300kg it warped.


    Sounds like it was one of the lower rated bars mate.

    Saw Bertil Fox train at Del's Gym in Southall,Middlesex in the late 80's.Had well over 500lbs on the oly bar doing bench.It bent but returned to shape straight away.Can't see a good quality oly bending at 300 kilo's.
    #11
    Dan Nukem
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:37:25 (permalink)
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    Any idea what the difference is in manufacture?

    Is the bar thicker or something?
    Or different metal?
    #12
    Lucutis
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:38:26 (permalink)
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    Dan check this un!
     
    http://www.youtube.com/watch?v=RuRxpqP9BQY
     
    Superbend - superlift..





    #13
    loz_86
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:40:21 (permalink)
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    thats mainly due to the length of the bar

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    Dan Nukem
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:41:55 (permalink)
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    Lucutis

    Dan check this un!
     
    http://www.youtube.com/watch?v=RuRxpqP9BQY
     
    Superbend - superlift..


    Savage lift, but Terry's was more impressive in my mind as he took it off the floor.

    BM was starting from half way up there, more like a partial. That guy must have cyborg tendons or something, I was just waiting for a bicep tear
    Cool link tho mate, cheers.
    #15
    Sheeps_Clothing
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 01:52:22 (permalink)
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    The difference between a top quality bar (Ivanko, Eleiko, Texas Power Bar, Leoko etc) is more than just what it is rated to.

    I'm not sure of the exact construction difference, the info is readily available on the Eleiko/Ivanko websites, however I do know they are obsessive in their testing and quality controls.

    A bit like comparing a top Swiss made watch to a similar one that looks the same, may even perform similarly, but the quality, production and details are in another league.

    A good bar is worth every penny if you get the opportunity to buy and use one (i.e. setting up your own gym). Shame more gyms don't have at least one decent barbell, suppose it doesn't make any 'business sense'.
     
    From the Ivanko website: "Ivanko's Stainless Steel Olympic Bar. 218,000 PSI tensile strength, ultrasonic tested for internal cracks, magnetic particle tested for external cracks, and never peels, chips, or rusts."
     
     
    post edited by badboy007 - 2009/07/30 02:02:26
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    iaink
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 07:05:36 (permalink)
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    Badboy has summed it up nicely.

    The 'rating' is only part of the story and is probably not tested in a dynamic fashion too.

    Cheap bars will bend at some point. Partiulary if they abused aka pin pulls or being dropped.
     
    If I owned a gym I'd invest in a couple of good bars (texas power bars for example) then the rest can be cheaper stuff.
    post edited by iaink - 2009/07/30 07:08:23

    Stonehenge
     
    Where the banshees live and they do live well
    #17
    TONY
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 07:06:42 (permalink)
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    All the 1000lb rating stuff is pretty much nonsense.

    Have a read of the section about strength and bending bars.


    Click on the olympic bars section then its about half way down the page.
    http://www.ivankobarbell.com/productsframe.htm


    post edited by T0NY - 2009/07/30 07:08:28
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    Fat Pete
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 07:12:56 (permalink)
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    All bars bend, bad ones bend a bit and stay bent, good ones bend more but straighten out again

    As far as I know, forgiveness is for the benefit of the person doing the forgiving, not the one being forgiven
    #19
    1ManRiot
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    Re: how much weight could an oly bar take before snapping? 2009/07/30 07:52:12 (permalink)
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    All the cheap ones in my (old) gym were permanently bent, albeit only slightly.  I know for certain that little more over 220kg ever goes on them.

    Unaffiliated. 
    #20
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