Roll Cages: Chromoly VS. Mild Steel

Use DOM tubing the tell everyone its CM. Unless its a all out race car it is overkill. Then if CM is welded too hot it will need to be heat treated to bring it back to its designed strength and to stress relive the metal. Now how many shops check for overheated welds? None. The NASCAR builders have their welders set up by the welder suppliers for a set size and type of metal. Regardless check your welds for cracks.