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most places that use welded seam tube will bend it with the seam to the inside of the bend. The lack of stretching the seam helps it not tear



thats one of those situations where you cant win,if the weld is harder than it should the pipe will have weird wrinkles or wont compress as it should and will therefore stretch the outside radius to much and split from that instead. strange things happen..



Correct.. if the weld is right you can put that seam
anywhere and it'll bend perfectly




absolutely correct,just a shame its so darn difficult and expensive finding tubing with good welds these days.
10 years ago any tubing would be good for most anything you could imagine doing to it and then some,these days there is all sorts of isues even doing the simplest of things. almost glad im not working with that anymore