I made all of my flanges on a cnc out of 304 stainless, now the piping I was wondering about. I've read of the pipes cracking on some manufacturers manis. What about home made ones? If I use 304 stainless pipes, do I run a risk of the pipes cracking? Everything will be TIG welded so I'm not worried about welds breaking, I just don't want the pipes cracking. Also, will heat wrap increase this risk?