RE: Can a tailpipe be made of copper?
I suspect that the strength and modulus will be significantly less than stainless. That means, for it to be as strong (resistant to bending and resistant to collapse, compressive stability), it will need to be thicker than a stainless pipe. Been using .008 stainless on Isobar pipes for years. You can get them cherry red and blue all over and they are just fine with no collapsing.