straight from the man himself.. JIMbo!!Look's like mild steel to me, that would reflect the cheap price.
same weight from what i researched. DOM is mild steel.Then there is the weight concern. How much heavier is seam wall steel over DOM?
???? if they are the same size -then they weigh the same.weight is insignificant between DOM and Mild at the same wall thickness,
In my opinion this is the key point. The process of how the tube is made is something to consider in that certain grades of steel are only avaliable in DOM so the grade of steel is really it. DOM can be purchased in a lot of different grades such as 1006 that is not as strong at a yield strength of 41300 psi when compaired to 4130 that is at 66700 psi and ERW is most commonly found in A-36 which has a yield of 36000 psi but is also avaliable in many other nickel alloys. So my point is just because it is DOM doesn't mean its the best one should look very close at what grade of steel.There has been a lot of talk about DOM and HREW tubing among off-roading circles and I'll try to answer a few questions that you may have about the differences.
DOM is a process and means "drawn over mandrel". Typically you use DOM when you require precise thicknesses in the ID, OD or wall thickness of a tube. It is not seamless but is made from sheet steel, rolled and electric resistance welded and finally, "DOM'ed". DOM is a cold process. Most typically it is made from low to medium carbon steel.
HREW is cheaper than DOM, but isn't as nice. HREW has a seam weld, as does DOM, but DOM is taken a few steps further to counteract the welding and cold working abnormalities for a straighter stronger piece of tubing. But as far as strength goes for bumpers and sliders, HREW will sufficiently do the job except for applications that require extreme strength.
If I were building a purely competition rock buggy where I would be getting into areas with large drop-offs, I would probably use DOM, but for the kind of off-roading that most people do and even for the occasional rock competition, I would probably go with the HREW.
In summary, DOM is a stronger tubing material than HREW, but costs about twice as much per foot. HREW is more than sufficient for most off-road applications.
The Density of the mild steel is the same as the 4130 series .284 lb/in3 so this is correct in that the wieght savings is realized in the reduced wall thickness...same weight from what i researched. DOM is mild steel.
if they are the same size -then they weigh the same.
the strength is just different.
AED Motorsport Products - Your supplier of Mild Steel
AED Motorsport Products - Your supplier of Mild Steel
AED Motorsport Products - Your supplier of 4130 Chrome Moly
I agree!weight is insignificant between DOM and Mild at the same wall thickness, Chromo can be lighter because of the strength, you can use a thinner wall and be stronger.
my whole sand car is mild (suspension is Chromo ) and I feel it is safe for passengers, because of design. even a chromo car or cage can be weak, alot has to do with design.
I think most of the reputable builders would agree with this.
My rhino cage is Chromo and DOM.
Since I seem to be the one that pointed out the "mild", maybe I should elaborate...Crazy how peeps are quick to point out "mild" steel but would be talking chit if he was using .120 to be on the safe side as well and over braced as always everyone has there opinion but shouldnt knock it unless it is built in a poor manner which doesnt seem to be the case here JMO
LMFAO I can give a chit about what or in your case WHERE he posted about peeps making a "big stink" and matter of fact I seen this stuff before I even looked at his thread over there ! I think he has a WELL designed cage and considering most rhinos only go 50 that mild set up would hold up just fine..as we mod our toys some want more which is a option we all have with many diff builders including him ! I know you have to compare "apples to apples" so who has a TIG welded cage out of DOM or chromoly for under a G ? Seemed to be a money thing which turned to material used but even at that I dont know of anyone with that type of pricingJR I can understand your want to defend Jimbo and his product as he made a big stink on his forum about how people over here are attacking him. But if you read this thread no where did anyone question his fabrication or design quality. Only thing in question was the material he used and it was stated later that he will design cages with any type of steel with a price increase. And with all due respect I dont think any of the fabricators meaning site sponsors of UTVUnderground build anything from Mild Steel. So on that end it is a valid thing for one to point out as far why a product may be so cheap.
Reality is it is a fair question to ask as far as what type of steel a company is using. Most people/enthusiats would never know the difference and it isnt fair to compare pricing vs another company when one company is using/quoting DOM or Chromo and another Mild Seam Wall.
This is a legit topic with some good discussion. No one is attacking him or his skills, nor would this site tolerate the attacking of any vendor whether they were a site sponsor or not.
Just cause one company comes out making a cage for less than a thousand dollars does not mean that other companies wont stop making cages and or will just drop there shorts to compete. To say that $1000 cage is a thing of the past is just stupid anyway, I gurantee there will always be $1000+ cages in this industry, as long as wuality shops are still in business anyway.either way each builder has their own opinion on what cages should be priced at.. thats cool and everything. kyle is also right
paying 1000+ and even in most cases 2000+ for cages is a thing of the past.
Fu2 is setting the bar and helping out the consumer, you can get a full chromoly tig welded cage for $950!! now thats a deal.. even in this situation "the price of FU2 cages, has no direct correlation with material being used..." I know where my next cage purchase is going
LMFAO I can give a chit about what or in your case WHERE he posted about peeps making a "big stink" and matter of fact I seen this stuff before I even looked at his thread over there ! I think he has a WELL designed cage and considering most rhinos only go 50 that mild set up would hold up just fine..as we mod our toys some want more which is a option we all have with many diff builders including him ! I know you have to compare "apples to apples" so who has a TIG welded cage out of DOM or chromoly for under a G ? Seemed to be a money thing which turned to material used but even at that I dont know of anyone with that type of pricing
FYI I only post on stuff like this if I feel they have a solid product and could care less who said what or if this benifit me in the long run...so sorry you feel im trying to stick up for him cause he posted on another suite !!!
Dan sorry if you feel the "mild'' comment was directed towards you cause I didnt mean it that way just a general comment. Material does play a huge part in cost and you made a legit statement and there are MANY peeps that look at the final nut rather than how they got to that price....As far as Kyle comment..seems that MANY peeps go with there vendor/friend/ or the peeps that hook them up which sometimes it is better to just keep your commnts to youself so they dont blow out content ! Not sure if it was a knock on other builders but def didnt sound right i will agree with you on that oneSince I seem to be the one that pointed out the "mild", maybe I should elaborate...
I wasn't knocking FU2, merely stating the obvious. The cage price was reflectant on the material being used. I thought Kyle's comment about cages being $1000+ was whack, and pointed out a fact that he obviously overlooked. Sorry if it affended anyone.
LOL enough BS about who, what, where ,when and why EVERYONE has there own style..price and all that other stuff Im over it when is the next ride cause I need to get out ?Jesus christ, this thread is getting out of control........
I dont feel your trying to stick up for him cause of where he posted JR...based upon the timing of your post I assumed you had read what he posted over there first...sorry for assuming as we all know what ASS U ME means....
I will say this.....I D G A F about what or who or why anyone does what they do. I made an observation about a product and related his inexpensive price on a cage to it, and I was right. If you want Chromo add 300 bucks....nuff said. At $900 He is still the KING OF CHEAP cages! Fu2 wins? LOL No one was knocking him or his products, just questioning where he is shedding the cost and assumed it had to be in the fact he was using Mild Steel.
Now we have all been corrected, everyone has come out and made their peace.......