DIN 17175 St35.8.I or P235GH TC1 , SML Tubes DN40 48.3mm Stud Welding Tube: Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of extruded bimetallic fin tube.
A179 SMLS Carbon Steel OD19X1.25WT LL Type Fins Radiator Tube with Spacer Box: The fin strip (normally aluminum and copper) is folded into an L SHAPE and wound onto the base tube surface under tension. The feet of the fins are joined together and cover the finned surface.
Serrated Extruded Heat Exchanger aluminum Fin Tube , A179 seamless Carbon Steel tubes: Both bare ends of Bimetallic Finned Tubes shall be Zinc or Aluminum that metallized applied by an electro spray arc system coating.
SB338 G.2 Seamless Titanium Heat Exchanger Fin Tube , 30FPI Integral Low Finned Tubes: The fins are rolled out of outer wall of the plain tubes by a pass roller. Tubes and fins are in same piece tube. We call it“N”fin type.
ASTM B338 1.245mmWT Titanium Heat Exchanger Fin Tube Smooth Core: A smooth core tube is inserted into an aluminum sleeve and then the fins are extruded out of the aluminum sleeve.
SA210 U Bent Serrated Helical Welded Evaporator Tube Polished: High Frequency Resistance Welded Helical Steel Fin Tubes is widely used in the recovery of waste heat from boiler flue gas.