Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

Seamless or not, a tubing question.

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by laketex, Feb 1, 2001.

  1. laketex

    laketex 3/4 ton status

    Joined:
    Feb 17, 2000
    Posts:
    6,220
    Likes Received:
    0
    Location:
    North Texas
    I can get 1.75 DOM .120 for around 4 bucks a foot, regular seamless for about $1.97 and blue seam tubing for under a buck. What do I really NEED for rollcage material. Pros/cons? Strengths of each? Thanks.

    Bryan

    [​IMG]
    Durant, Ok
    I love my SAWZALL!!!
     
  2. Grim-Reaper

    Grim-Reaper 3/4 ton status Author

    Joined:
    Feb 17, 2000
    Posts:
    7,385
    Likes Received:
    0
    Location:
    Atlanta
    Well DOM is the strongest hands down no argument there. But lets look at the application. Most rolls in a 4x4 are a slow roll not high speed 200mph crash. Most I have seen the truck doesn't even make a full roll. Usualy just lays in it's side if it has a bar to keep the roof up. There have been exceptions like the guy that lost it on Hellicopter pad and after about 4 rolls down past gardrail he stopped and his factory bar did it's job in a jeep. I don't think that jeeps have DOM and probably a pretty thin gage. Mine is the welded seam. We felt the seam towards the inside would be the best and even at the tight bends we didn't see any hint of it trying to split. It's far safer than the fiberglass roof. I feel it's still safer by at least triple of the metal roof.

    Diging it in the dirt with my K5's
    Grim-Reaper
    <A target="_blank" HREF=http://grimsk5s.coloradok5.com/>http://grimsk5s.coloradok5.com/</A>
     
  3. Burt4x4

    Burt4x4 3/4 ton status

    Joined:
    Feb 17, 2000
    Posts:
    6,854
    Likes Received:
    0
    Location:
    California (Modesto area)
    As Grim stated DOM is the best for a rollcage. Rolled steel tubing or seamless is the most commonly used tubing for rollcage fab work. The stuff with a seam comming in third.

    I used the rolled stuff for mine sence it's cost effective and works fine for our application. I have read that chrome moly should never be used for a rollcage cuz it will shear before bending.......

    72K5[​IMG]Led Zeppelin[​IMG]Rock ON![​IMG]
    <A target="_blank" HREF=http://www.burt4x4.coloradok5.com>http://www.burt4x4.coloradok5.com</A>
     
  4. blazen91

    blazen91 1/2 ton status

    Joined:
    Sep 10, 2000
    Posts:
    1,738
    Likes Received:
    0
    Location:
    Hesperia, Ca 92345
    DOM is the strongest, as stated.But not nessary. Chromoly is good, but once again, exspencive. Chromoly will bend fine with a strong bender but it becomes brittle. I am going to use 1 3/4" x.120 wall mild tubing for mine. If not welded to the frame., it doesn't matter what you use, it will go through the floor before it totally collaps.

    <A target="_blank" HREF=http://www.blazen91.coloradok5.com>http://www.blazen91.coloradok5.com</A>
    Protect the land FOR the people
    Not FROM the people
     
  5. Emmettology 101

    Emmettology 101 3/4 ton status

    Joined:
    May 9, 2000
    Posts:
    8,126
    Likes Received:
    0
    Location:
    FL
    Ya, I would use the seamless...

    Mike [​IMG]
    See <font color=green>EMMETT</font color=green> -&gt; <A target="_blank" HREF=http://emmett.coloradok5.com>http://emmett.coloradok5.com</A>
     

Share This Page