pipe vs. tube

[camarolover]

Okay new ? what is sch40 pipe? Is this the black pipe at home depot used for water and such? Metal-mart lists pipe with .120" and with .190" [and others] but these two are what they said they sell to most 4X4 building cages and bars.That being said what is the differance between these two and tubing? is it the steel in them or is it quality in manufactering. Sorry to be so dence but I just want to make a informed decision.What is the weight differance? Thanks for the info!

 

[Hickey]

Tube and pipe are measured differently. Pipe is measured by the Inside Diameter, while tube is measured by Outside Diameter.

1.5" schedule 40 pipe would be about 1.69" OD
1.5" tube would be 1.5" OD

 

[kasprzak]

No one has talked pricing yet so I will jump in. I was quoted $106 for 21' sections of schedule 40 2" internal diameter. So about 5$ a foot. How is the pricing on DOM. I was planning on making some bumpers and sliders but this seems high to me. Any comments?

 

[Caleb]

No one has talked pricing yet so I will jump in. I was quoted $106 for 21' sections of schedule 40 2" internal diameter. So about 5$ a foot. How is the pricing on DOM. I was planning on making some bumpers and sliders but this seems high to me. Any comments?

where'd ya get the pricing? That is EXTREMELY high (or so it seems). I know years ago I was being quoted $2.49-$3 a foot for 1.75" DOM, that was before the big steel rise but I still think that's more than DOM.

 

[Rusted]

I just paid about $2.85 a foot for 1.75 x .120 DOM. HREW was about $2.35 a foot. Your price on SCH 40 sounds very high.

 

[anvil]

Hickey, 1.5" pipe is 1.9 OD. See the chart I posted in this thread. The 1.5" is completely nominal. Machinery's Handbook says there used to be some correlation between Nominal pipe size and ID, but that is no longer the case.

Kasprzak I'm a little confused on what your quote is for. There is no pipe with a 2" internal diameter. If they just meant schedule 40 2" pipe the OD is 2.375" and the ID is 2.067 (.154 wall). Again see the chart I posted. 2" pipe is a bit large, but maybe someone uses it. I'll start putting together a chart with prices.

 

[Rusted]

Here is another angle this thread can take. When I work with TUBE my one tube die will work with many different wall thicknesses. One tube die will give me lots of options of tube it can bend. Marmon sales 1.75" tube from .049" - .500" wall thickness, so my options are wide open. I found that the .120" wall was plenty of work to bend, I am not sure how much heavier I would be able to work with, but the options are there.

When you buy a pipe die aren't you locked into bending only that one type of pipe since a heavier wall would change the OD therefore your die would not work any longer?

Also if you think of things more than just roll cages, tubing is avalible in all different type of metals like stainless or aluminum. So when workinig with tube you have more options of the type of things you can build. Anyone try to use a JD2 or pro-toosl bender to bend stainless or aluminum??

 

[78mitsu]

Here is another angle this thread can take. When I work with TUBE my one tube die will work with many different wall thicknesses. One tube die will give me lots of options of tube it can bend. Marmon sales 1.75" tube from .049" - .500" wall thickness, so my options are wide open. I found that the .120" wall was plenty of work to bend, I am not sure how much heavier I would be able to work with, but the options are there.

When you buy a pipe die aren't you locked into bending only that one type of pipe since a heavier wall would change the OD therefore your die would not work any longer?

Also if you think of things more than just roll cages, tubing is avalible in all different type of metals like stainless or aluminum. So when workinig with tube you have more options of the type of things you can build. Anyone try to use a JD2 or pro-toosl bender to bend stainless or aluminum??

I've bent 1.5 pipe with a 2" die and 1.2" pipe with an 13/4 die it doesn;t make the greatest bend, but it isn't bad. seam to the side seam to the side it'll tear if it's on top.

 

[anvil]

rusted all 1.5" pipe is 1.9" OD only the wall thickness and ID changes. Once again look at the chart I posted. I listed 6 different wall thickness for 1.5" pipe. If you had a 1.5" pipe die any 1.5" pipe will fit in it. I do agree that tube dies are more universal. I haven't bent any aluminum or stainless but I know it can be done. I had Tyaut design bend some 1.5" OD .120 wall 6061 aluminum tubing for a job I did at the U. The bend radius was huge 24". 6061 might crack with the typical bend radius made by a JD2. Anyone else tried it?

 

[78mitsu]

rusted all 1.5" pipe is 1.9" OD only the wall thickness and ID changes. Once again look at the chart I posted. I listed 6 different wall thickness for 1.5" pipe. If you had a 1.5" pipe die any 1.5" pipe will fit in it. I do agree that tube dies are more universal. I haven't bent any aluminum or stainless but I know it can be done. I had Tyaut design bend some 1.5" OD .120 wall 6061 aluminum tubing for a job I did at the U. The bend radius was huge 24". 6061 might crack with the typical bend radius made by a JD2. Anyone else tried it?

in IPS(which is what we-re talking about) you're right, it varies less then 1/16 of an inch od. so you can thread any 2" fitting into a 2" fitting whether its sch 80 or 40 or 200 or whatever, which is alsp part of the reason that pipe thread is tapered. as long as it isn't a cts fitting.

 

[kasprzak]

Hickey, 1.5" pipe is 1.9 OD. See the chart I posted in this thread. The 1.5" is completely nominal. Machinery's Handbook says there used to be some correlation between Nominal pipe size and ID, but that is no longer the case.

Kasprzak I'm a little confused on what your quote is for. There is no pipe with a 2" internal diameter. If they just meant schedule 40 2" pipe the OD is 2.375" and the ID is 2.067 (.154 wall). Again see the chart I posted. 2" pipe is a bit large, but maybe someone uses it. I'll start putting together a chart with prices.

I WAS PLANNING ON BUMPERS THUS THE 2 INCH PIPE. iT WAS SCHEDULE 40 AND I KINDA FIGURED THE PRICING WAS HIGH. I WAS QUOTED THIS THROUGH BOEMAN AND KEMP IN OGDEN.

 

[anvil]

Kasprzak let us know if you find a better price.

78mitsu Thanks for the info. I had to google IPS and CTS. For everyone else:
IPS = Iron Pipe Size
CTS = Copper Tube Size

 

[camarolover]

check out metal-marts website at metalmart.biz for they're pricing.