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?

 

Make sure everything is prepped and cleaned well and practice on other pieces to get heat and penetration set right and you should have no problem