Flange square up to 8” pipe – Off The Hook Design And Fab
Socket Weld Flange Fabrication - Canada Thermal Break and Vibration Control
Pipe to flange I did recently in mild steel. The place I went to weld it only had a TIG, would normally do something like that with a MIG. Don't think it
Welding to a Flange
The Most Common Flanges in Pipe Welding Westermans Blog