This standard specifies the dimensions and tolerances of: Circular tubes, for fluidsin titanium and titanium alloys Wide tolerancesDiameter 4 mm < D < 40 mm
EN 4180:2001 history
2001EN 4180:2001 Aerospace series - Circular tubes for fluids in titanium and titanium alloys - Wide tolerances; Diameter 4 mm <= D <= 40 mm; Dimensions