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Unread 12-11-2011, 05:33 PM   #751
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I'm Jeremy. lol Unfortunately, I do not make them for the YJ at the moment. Though the YJ and CJ dash mounting holes are identical, the windshield frame holes are different. I would not sell YJ mounts until I had a YJ to test fit them on. I obviously do not have access to a YJ to do this.

Thanks Scott for posting those pictures amigo.

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Unread 02-07-2012, 04:27 PM   #752
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Something to remember when placing gussets in a cage. Do not put them on the center line of the cage tube. Put them toward the outside edge of the tube so that when welded out, the gusset is tied into the edge of the tube. I witnessed a roll over not long ago where the gussets were on the center line of the tube. As pressure was put on the tube during the roll over, the gusset essentially cut into the tube causing it to collapse.

SCORE offroad trucks cannot use plate style gussets for this reason. They require saddle gussets.
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Unread 02-08-2012, 06:36 PM   #753
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^good info!


and i just thought I would add some nodes to strengthen this topic a bit...
cage-x.jpg  
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Unread 02-08-2012, 06:42 PM   #754
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I'm diggin the gauges in the dash. Cage is awesome as well.
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Unread 02-13-2012, 08:49 PM   #755
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please don't build a cage like this...
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Unread 02-20-2012, 10:31 PM   #756
74Maverick
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I have a question about tubing. I work for a commercial fence company we build fence for high security places such as military and prison etc. I have cheap acces to schedule 40 galvanized tube of varying size. I dont know about tube specifications and names but i know this stuff very strong, thick, and not prone to cracking or splitting. What can anyone tell me about using this for a cage. I run a beater jeep and it will never be anything but just that. I dont do rock crawling or anything but climb small hills and sometimes get sideways on them and would like the extra comfort in knowing that i wont be flattened if i ever go over. Any suggestions?
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Unread 02-21-2012, 05:15 AM   #757
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I can't speak to the strength but I hear welding galvenized steel isn't fun and doesn't work well.
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Unread 02-21-2012, 06:55 AM   #758
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Fence pipe is just that... pipe. It has a seam, is thin walled and not structurally rated. The standards for manufacturing it are way low compared to even HREW. This is your life were talking about here, don't take short cuts.

Welding galvanized pipe is a major health hazard. Don't do it with out proper PPE and ventilation system. There is also a concern with weld strength on galvanized due to the zinc mixing with the weld material.
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Unread 02-21-2012, 08:36 AM   #759
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Quote:
Originally Posted by 74Maverick View Post
I have a question about tubing. I work for a commercial fence company we build fence for high security places such as military and prison etc. I have cheap acces to schedule 40 galvanized tube of varying size. I dont know about tube specifications and names but i know this stuff very strong, thick, and not prone to cracking or splitting. What can anyone tell me about using this for a cage. I run a beater jeep and it will never be anything but just that. I dont do rock crawling or anything but climb small hills and sometimes get sideways on them and would like the extra comfort in knowing that i wont be flattened if i ever go over. Any suggestions?
I wouldn't use it for a cage...
1. Like was already said, it is not structurally rated to take that kind of loading.
2. Galvanized steel is extremely toxic when you weld it.
3. When it comes to safety I wouldn't base my decision heavily on the price, I would base it on what I am purchasing to save my life or a passenger's life.

I was thinking of going with something other than DOM (like ERW) bc at the time I didn't have the money. I have looked at too many roll over threads to go with anything else. Yes it may work, but DOM will out perform any pipe or ERW with the same specs
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Unread 02-21-2012, 10:52 AM   #760
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ok im not saying to use pipe over tubing but some of the reasons stated can be overcome.
-sched 40 is actually thicker then the standard DOM tubing used for cage building.
-DOM definitely has a seam and anyone who has actually used it will agree. it is simply much less apparent.
-ive seen no info stating the standards for manufacture are low for pipe. id like a pipe manufacturer or the like to chime in and give us the info.
-many structures are built using pipe. was working a waterpark and i cracked one of the structures and it was built with butt welded pipe with extremely poor penetration. yikes.
-galvanized fence pipe gets welded every day.

i think in the past one of the main problems with pipe cages besides weight, was in execution. those who used pipe, probably knowing no better, were usually the types to do so poorly. kinked bends, butt welds, poorly done stick welds, and overall poor designs were common attributes of pipe cages. if a pro built one im sure most would have a hard time noticing on first glance.

we cant even get tubing let alone DOM in the middle of the pacific. no one stocks it period. its a special order thing and its real expensive. they even get confused at the yard when you ask for it. they will show you pipe and look at you like you were from mars if you tell them thats not what you are looking for. i gobbled up the last of the on-island DOM stock when a builder moved.
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Unread 02-21-2012, 11:09 AM   #761
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DOM, ERW, HREW...all types of "mechanical tubing", as opposed to pipe. All mechanical tubing is dimensioned by OD and a wall thickness.

DOM is actually not a type of tubing, but a process that is applied to tubing after it is initially constructed. It is Drawn Over a Mandrel...which "cold works" it, giving more exact dimensions, smoother finish, and better alignment of the crystal latice structure. It is Not seamless tubing, and it started life as some sort of EW (electric welded) tubing. Most commonly, when people say "DOM" they mean 1020 mild carbon steel rolled electric welded tubing that is then drawn over a mandrel.

Other mechanical tubing that is not necessarily drawn over a mandrel can be either hot or cold rolled (i.e. rolled from a flat strip into a tube when either hot or cold) and most commonly available will then be electric resistance welded to form the final tube.

Generally...cold forming and cold working add strength and uniformity to a product, and reduce stress.

-----------------------------------------

So VERY BASICALLY, in terms of strength you usually have, in order:

DOM
CREW (cold rolled electric welded)
HREW (Hot....)

Again...these are all just processes, to fully call out the material, you need to specify the type of steel...but most commonly we are talking about either 1020 mild carbon steel, or 4130 or 4140 Chromium molybdenum alloy steel or 4340 nickel chromium molybdenum alloy steel.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ROPS (ROLL-OVER PROTECTIVE STRUCTURE) TUBE
--------------------------------------------------------------------------------
Structural tubing that offers high strength-to-weight ratio and a higher impact toughness. The steel is fully killed and melted to fine grain practice. Customers may specify yield, tensile, elongation and charpy impact values according to their needs. This product is to minimize the probability of catastrophic failure of vehicle cab structures in the event of a roll-over accident.
American Specifications: ASTM A500 for dimensional tolerance, squareness, straightness, twist and corner radii. Mechanical properties can vary by end user.

Applications: Cabs for agricultural vehicles, road and off-road construction equipment, and lift trucks.

Size Range: 2" - 12" (50 mm - 305 mm) sq and the standard rectangle sections of the same perimeters. Rounds available as special inquiries.


Typical Chemical Analysis: Alloying elements may be added to achieve mechanical property requirements.
C .22 max
P .04 max
Mn 1.65 max
S .05 max
Typical Mechanical Properties: Can vary to customer specification
Tensile strength (ksi) 70 min
Yield point (ksi) 50 min
Elongation (% in 2") 20 min
Charpy impact Wall Ft/lb (min) Temp (°F)
3/16" 11.0 -20
1/4" 13.0 -20
3/8" 18.0 -20




Machinability: Good

Weldability: Excellent

Testing: Generally one tensile test and one set of three impact tests are taken from each lot of tubing. Tubing is tested in accordance with the latest revision of ASTM A370. Certification of material is available.

Materials Resource Page Number: 41

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1020 DOM STEEL TUBE

--------------------------------------------------------------------------------

1020 is normally used in the manufacturing of small-diameter or thin-wall DOM steel tube. DOM is formed from strip and electric-resistance welded, then cold drawn to size. The cold drawing process causes the weld line to virtually disappear.
American Specifications: ASTM A513 Type 5

British Specifications: 040 A 20, 070 M 20

Applications: Mechanical, hydraulic cylinders, shaft, tight tolerance requirements

Size Range: 1/4" - 14&1/2" (6 mm - 368 mm) OD; .035" - .625" (.9 mm - 16 mm) wall

Typical Chemical Analysis: C .15-.25
Mn .30-.60
P .040 max
S .050 max

--------------------------------------------------------------------------------
Typical Mechanical Properties: Tensile strength (ksi) 80
Yield point (ksi) 70
Elongation (% in 2") 15
Rockwell hardness RB80



--------------------------------------------------------------------------------


1018 COLD DRAWN AND HOT FINISHED SEAMLESS TUBE
--------------------------------------------------------------------------------
1018 is normally used in the manufacturing of cold drawn and hot finished seamless tube. The production of seamless tube is generally made by piercing a hot rolled bar. Hot finished is generally furnished in the unannealed condition, whereas cold drawn seamless is supplied in the unannealed or S/R annealed conditions, depending on the size.
American Specifications: ASTM A519

British Specifications: 070 M 20, 080 A 15

Applications: Axles, shafts, gears, bearings

Size Range: 1/8" - 24" (3 mm - 610 mm) OD; .0218" - 3.00" (.6 mm - 76 mm) wall

Typical Chemical Analysis: C .15-.20
Mn .60-.90
P .040 max
S .050 max
Typical Mechanical Properties: CDS HFS
Tensile strength (ksi) 80 60
Yield point (ksi) 60 35
Elongation (% in 2") 15 30
Rockwell hardness RB88 RB60



--------------------------------------------------------------------------------


1010 ELECTRIC WELD STEEL TUBE


--------------------------------------------------------------------------------

1010 is normally used in the manufacturing of electric-resistance welded tube. The product is available normally in cold rolled strip (16 gauge and lighter), and hot rolled strip (.083" wall and heavier). The product can be obtained in the as-welded condition (flash-in) or in the flash-controlled condition.

American Specifications: ASTM A513 Type 1 and Type 2

British Specifications: 040 A 10, 045 A 10

Applications: Machinery stands, exhaust tubes, handles, hand rails, display stands, conveyor rollers

Size Range: 1/4" - 10" (6 mm - 254 mm) OD; .028" - .375" (.7 mm - 10 mm) wall

Typical Chemical Analysis: C .08-.13
Mn .30-.60
P .035 max
S .035 max
Typical Mechanical Properties: Tensile strength (ksi) 45
Yield point (ksi) 32
Elongation (% in 2") 15 min
Rockwell hardness RB55 min





--------------------------------------------------------------------------------


1026 STEEL TUBE


--------------------------------------------------------------------------------

1026 grade is normally used in the manufacturing of DOM, cold drawn seamless and hot finished seamless. This grade normally furnished over 2" OD, with walls heavier than .156". A variety of thermal treatments can be supplied, depending on the type and size of material.

American Specifications: ASTM A519 (SMLS), ASTM A513 Type 5 (DOM)

British Specifications: 070 M 26

Applications: Mechanical, hydraulic cylinders, shaft, tight tolerance requirements

Size Range: 1/8" - 24" (3 mm - 610 mm) OD; .028" - 3.00" (.7 mm - 76 mm) wall

Typical Chemical Analysis: C .22-.28
Mn .60-.90
P .040 max
S .050 max
Typical Mechanical Properties: CDS DOM HFS
Tensile strength (ksi) 87 80 70
Yield point (ksi) 72 70 47
Elongation (% in 2") 10 10 28
Rockwell hardness RB89 RB85 RB78
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Unread 02-21-2012, 04:23 PM   #762
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Thanks for the info folks. I will think more on it. I know about welding galvanized and we do it plenty, with stick or mig. We also build massive 30+ ft roll gates out of it that have alot of loads put on thier structure. Im still up in the air on it. An extreme cage is not necessary for me but it will need to be able to handle a mild roll.

And to the guy on Oahu im sure you have your resources, but on maui there is a shop in Haiku i beleive calle Upcountry Fabrication. I used to buy out of their scrap bin. But they have alot of different materials to work with in there. and could be a source for you or possibly just refer someplace to you. I know with the superferry (if it hasnt been shutdown for shredding whales) it might not be unreasonable to make a trip to maui for a project. East side maui bra!! Mahalo
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Unread 02-21-2012, 10:46 PM   #763
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Quote:
Originally Posted by 74Maverick View Post
Thanks for the info folks. I will think more on it. I know about welding galvanized and we do it plenty, with stick or mig. We also build massive 30+ ft roll gates out of it that have alot of loads put on thier structure. Im still up in the air on it. An extreme cage is not necessary for me but it will need to be able to handle a mild roll.

And to the guy on Oahu im sure you have your resources, but on maui there is a shop in Haiku i beleive calle Upcountry Fabrication. I used to buy out of their scrap bin. But they have alot of different materials to work with in there. and could be a source for you or possibly just refer someplace to you. I know with the superferry (if it hasnt been shutdown for shredding whales) it might not be unreasonable to make a trip to maui for a project. East side maui bra!! Mahalo
my wifes family does the big rolling gates...looks like a penitentiary to me but its there thing.

superferry is gone...tree huggers ruined it for us. the military bought them. so not only did we buy them twice but they will still be in the water and we dont get to use them.

i still have my stash of tubing so im good for a bit.
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Unread 02-22-2012, 09:05 AM   #764
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Them sneaky sons of ******. Bet they planned it all along. Oh well atleast the sun is shining and the waves are breaking, right? I miss it everytime i look out the window. I used to love takin my 4x4 van down to jaws.
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Unread 02-27-2012, 05:05 AM   #765
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here is a cage i built last weekend for a guy here in town with a bronco it is tied in, in six points with 6 bolt plates going through the floor and hard mounts to the frame












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