A513 Cold Roll Carbon Steel Round Tubing, Drawn Over Mandrel, ASTM A513, 4" Outside Diameter, 3.834" Inside Diameter, 0.083" Wall, 12" Length, OnlineMetals

This pipe is exactly as described and fit my needs perfectly.

With Prime shipping, it's a good buy, but something like this is more economical if purchased locally. That is, if possible. Now, this is listed as two different lengths. 12 inches long in the header, and, it's OAL (over all length) is listed as 60 inches in the copy. For this price shipped, I expected it to be 12 inches long, which it was. In appearance, it has a standard quality mill finish. It's what you would expect from any established steel vendor.

I used this to extend some oil cooler lines with a .5” union on an old Land Rover.

This is pretty soft steel. Welded easily. It is very consistent OD and ID. No ERW seam. Nearly perfectly concentric/uniform wall thickness. No ovality. 36" length delivered straight too. Only downside, the 7/8" x 3/4" ID I purchased was actually .745". Again, very consistent but not .750". May not matter to you, but for my application I was driving a .750" pin into cut lengths of this tubing, so it was a bad deal. Spent a few hours drilling it out to a full .750". Other than that, good price on a short length. Locally, only available in 20' lengths at almost identical $/ft.

It is exactly what I ordered.

Exactly as advertised

The 3/4 ID is smaller than 3/4. Doesn't do me any good for my project.

I use this product for rebuilding and modifying large grocery shopping carts with bicycle wheels for easy rolling while carrying heavy loads. I like this product for its strength and ease of cutting and welding.