Chains. Grade 70, 80 or 100. what do you have and why??

Discussion in 'Heavy Haul Trucking Forum' started by UltraZero, Jul 13, 2016.

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  1. Heavy Hammer

    Heavy Hammer Road Train Member

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    Sweet!
    Having all the pieces is nice...some days working with that much is a royal pain...
     
    Heavy Hammer, Jul 29, 2016
    #61
  2. Rontonio

    Rontonio Road Train Member

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    I didn't find the money to buy it
     
    Rontonio, Jul 29, 2016
    #62
    Heavy Hammer Thanks this.
  3. Heavy Hammer

    Heavy Hammer Road Train Member

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    There you go wreckin all the fun...
    Trust me, I understand!
    Fair warning, once you get that rail though, you'll never wanna use your bed again...
     
    Heavy Hammer, Jul 30, 2016
    #63
  4. UltraZero

    UltraZero Medium Load Member

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    Regarding Grade 80 chains, are they more prone to breaking under shock load then grade 70 chains.. Will Grade 70 typically stretch before breaking.
     
    UltraZero, Aug 21, 2016
    #64
  5. RGN

    RGN Road Train Member

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    Dug this up from my crane days.....won't end the debate but the info is there
    Look for the difference in WLL & minimum breaking force (how "brittle" it is)
     

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    RGN, Aug 21, 2016
    #65
  6. MACK E-6

    MACK E-6 Moderator Staff Member

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    I asked about those here once and that's what the guys all told me.

    If you haul things like wheel loaders on a spring ride RGN pulling with a spring ride tractor, you'll have some issues with shock load because the machine will bounce.
     
    MACK E-6, Aug 21, 2016
    #66
  7. RGN

    RGN Road Train Member

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    The Gr 70/80/100 chain thing brings back memories of my roll cage building days. There was always a debate on what to use:
    • "You should use mild (think Gr70) and not CrMo (think Gr 80/100) because the mild will bend and CrMo is brittle and will break before it bends"
    • "No, you can use a thinner wall (i.e.- smaller chain) CrMo and get the same strength as mild- they both bend"

    I'm sure on some race car board right now there is a thread "Roll cage tubing- 1018 or 4130- what do you use and why"
     
    RGN, Aug 21, 2016
    #67
  8. MACK E-6

    MACK E-6 Moderator Staff Member

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    What's CrMo?

    Chrome Moly?
     
    MACK E-6, Aug 21, 2016
    #68
  9. RGN

    RGN Road Train Member

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    Yes, sorry about that.
     
    RGN, Aug 21, 2016
    #69
  10. MACK E-6

    MACK E-6 Moderator Staff Member

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    No, no.., that's ok. Just making sure. :)

    Funny though, they make rifle barrels out of chrome moly.
     
    MACK E-6, Aug 21, 2016
    #70
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