We can supply you Brass & SS Capillary Tubes in all sizes and thickness as per below details :-
Dimensions
Outside Diameter : 0.20mm (Min) to 16mm (Max)
Wall Thickness : 0.10mm (Min) to 1mm (Max) (TW, RW, XTW, UTW etc).
Hardness : Bright Annealed, Quarter Hard, Half Hard, Full Hard.
Surface : Bright Finish and Bright Polished Surface.