HREW tube buy in sacto

blondejoncherokee

blondejoncherokee

NAXJA Member
Location
sacramento
I am going in with mike 1331 on some HREW . So far we at 2 sticks each. I think its about 2$ a foot. we are seeing how low we can get it, so anyone interested in a group buy? tube will either go to my place in downtown sacto or mikes place in colfax, you must pickup from one of those locations and also pay in advance to me or mike. Pm me or text me.


If anyone needs DOM ill see if we can get that too.
 
GordoSmasho said:
HREW is plumbing pipe.
Click to expand...

Please correct me if I am wrong, but this is the first time that I have ever heard of HREW being referred to as plumbing pipe.

To my knowledge, HREW is also a mechanical tubing. It just goes through a different process than DOM and the end result is slightly less desirable in our hobby.

Also, tube is measured from the outer diameter, while pipe is measured from the inner diameter.

Are you thinking of the "schedule ___" pipes? Schedule 40 and the like is generally poop pipe.

Or am I way off?
 
I'm with Kevin on this one. Sch40 is pipe hrew is tube .
 
sch. 40 isnt really poo pipe unless its PVC, sch. 40 can be used for pretty much any variety of plubming including potable water if its PVC pipe, or gas pipe, etc. Cast iron poo pipe I dont think is rated that way but if it was it would be sch. nothing, since it cant hardly hold any pressure at all before blowing up.

Does the size tube you get matter? I need to get some to brace my sliders to my frame stiffeners. Kind of out of the way for me but if its a good deal its worth it.
 
I wonder if I should stock up on tube for my cage.. And would I want DOM or HREW for a stinger on my bumper? I know I need DOM for a cage.
 
Hoooper said:
sch. 40 isnt really poo pipe unless its PVC, sch. 40 can be used for pretty much any variety of plubming including potable water if its PVC pipe, or gas pipe, etc. Cast iron poo pipe I dont think is rated that way but if it was it would be sch. nothing, since it cant hardly hold any pressure at all before blowing up.

Does the size tube you get matter? I need to get some to brace my sliders to my frame stiffeners. Kind of out of the way for me but if its a good deal its worth it.
Click to expand...

regardless, sch 40 doesn't belong on a rig as a structural piece. and it depends on what you're bracing. but it's hard to go wrong with 1.75 120 wall (roll cage size). probably be fine with 1.5 also

ae racer said:
I wonder if I should stock up on tube for my cage.. And would I want DOM or HREW for a stinger on my bumper? I know I need DOM for a cage.
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depends on how much and how hard you plan on ramming your stinger into rocks, or other rigs. you'll probably be fine with HREW

and you dont NEED DOM for a cage (unless you're competing.) from what I understand, HREW is the same material as DOM, the difference is HREW is seam welded and DOM is rolled which leaves it more dent resistant. if you plan on building a roll bucket, go DOM. but a few flops in dirt or light tipovers on the trail HREW will be fine. worst case, you can just make the roof sliders/ A pillars DOM for dent resistance and the rest HREW. at the end of the day cage design and good welds are going to get you farther than DOM vs HREW

if I was ready to build a cage I'd be all over this group buy. but unfortunately I'm on some down time from the jeep
 
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I used 1.5" .120 DOM for my cage. I go the DOM at 2.83$/ft back in the day so it was not so bad.
I am using HREW for tube fenders, and some additional bracing here and there with the cage.

If you use HREW for a cage, still use DOM for the main halo and A. B, C, D pillars, but then all of the bracing you can use HREW to save some bucks.


I would use HREW for a cage in a budget beater for sure. there is a god chance it will still save your life.
 
blondejoncherokee said:
If you use HREW for a cage, still use DOM for the main halo and A. B, C, D pillars, but then all of the bracing you can use HREW to save some bucks.

I would use HREW for a cage in a budget beater for sure. there is a god chance it will still save your life.
Click to expand...

so pretty much the whole cage then Jon? :laugh:

you really don't need DOM. carbon steel is carbon steel. DOM might have like a slightly higher carbon content, but minimal. I'm not sure. it's all in the process of how it's formed. DOM is more dent resistant yes. but for a cherokee build you're going to want to focus way more on frame bracing. and if you brace properly/thoroughly you're going to land yourself with a cage that will definitely protect you and most of your jeep.

the only reason to go full DOM is for a true roll bucket, buggy build, or competition car. in a cherokee that might tip over once or twice, HREW will be the least of your worries. you're going to thrash all the uncaged parts of the body anyway. so a small dent in the cage shouldn't bother you.
 
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HREW is plenty strong for a cage, push bar, whatever. Is DOM stronger...yes, but I would take 1.75*.120 HREW over 1.5*.120 DOM any day of the week. I don't have a cage, so what do I know, but maybe a civil engineering degree and specialization in strength of materials means something. The way everyone talks makes it sound like HREW is about as strong as copper water pipe. For the record HREW is slightly stronger than copper water pipe. Strength order goes like this: DOM>HREW>>>>>>>copper pipe
 
well in that case go with HREW!
and get in on our group buy folks!
 
Jake makes a good point about worrying about the "frame" first. Should prob get all that junk bought and installed.
 
So there's a few things I'd like to comment on here.

I can't figure out this stupid multiple quote deal on my phone so bear with me.

HREW and DOM are very different materials.

From what I hear:
-HREW is typically 1010 carbon steel, which has a .10% carbon content.
-DOM is typically 1020 carbon steel with a .20% carbon content.

Generally speaking, the higher the carbon content, the harder/stronger the material (the higher the tensile and yield strengths). BUT, as carbon content increases, the material becomes more brittle, and less ductile (deforms less before breaking).

Also, to cover my butt, rumor has it that ERW tubing may vary between 1010 and 1020 depending on wall thickness and outer diameter. I'm really not sure here.

HREW starts as a plate and is rolled into a tube shape and welded on the inside to make it complete.

DOM goes through the same/ a similar process (starting with a material with a slightly higher carbon content [1020]), and is welded just like ERW tube, but is then "Drawn Over a Mandrel" (hence the DOM name) to remove the seam on the inside, while at the same time being pulled through a die to fine tune it's outer dimensions. During this process, the tube is being cold worked (deformed while cold - essentially), which in this process, alters the crystal lattice structure of the material (in a good way - realigns the grain structure), making it harder/stronger/more dent resistant/more brittle, also with more accurate tolerances/dimensions.

DOM is NOT a true seamless tube. That stuff is super expensive and starts as a billet rod that is deformed over a mandrel. Whole different story. Don't go there.

"Carbon steel is carbon steel" (in my opinion) is not accurate at all - as seen above lol. Especially if we start talking about heat/cryogenic treatments.

Anyways... That's about where my knowledge stops.

So in TL;DR terms:

-Will a HREW cage keep you safe in a flop? Yes.
-Will it deform easier when it hits a rock in said flop? Yes.
-Should you worry about DOM reaching it's maximum tensile strength and shearing during a flop or typical roll? No.
-Will a HREW cage hold up and save you/your wife/your girlfriend/your child/your best friend riding shotgun in a hard roll down Cadillac Hill on the Rubicon? Maybe. But Im not the one to take that risk. Safety isn't something to skimp out on just to save a few bucks.


Hopefully somebody learns something from this lol. Please let me know if I have said something that isn't accurate. I don't like to share bad information.
 
Well I know who will be building my cage. Haha!!

Hey Kev, anything you prefer to be paid with besides cash? I have a feeling I'll be needing a cage after I swap the tons.
 
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