weldtron – a welded stainless steel tube system, with a smoothed weld bead, supplied in the alloys TP316L/TP316/1.4404/1.4435/BN2, available with surfaces in bright finish, anodic clean and electropolished
welded with smooth weld bead.
Ra ≤ 0.80 µm/32 µin
Anodic cleaned in accordance with specification HE 175 3VNS (tubes) and HE 111 3VNS (fittings)
Ra ≤ 0.80 µm/32 µin.
Anodic cleaning does not alter the roughness of the inner surface
Characteristics/Advantages:
The specially developed cleaning process removes 3-5µm from the surface – and with it any remnants of the annealing process and other potential contamination. For the user this means a surface free of particles including the welds.
Electropolished in accordance with HE 175 4VN (tubes) and HE 111 4VN (fittings)
Ra ≤ 0.60 µm/24 µin
Characteristics/Advantages:
Reduction of the surface area, the closed chromium oxide layer optimizes the corrosion resistance and welding characteristics, no catalytic reaction with the medium.
Outer surface: Ra ≤ 0.80 µm/32 µin
Surface treatment of tubes