Properties of Laser Welded Finned Tubes Made of Nickel Alloys

The article presents test results concerning properties of ribbed pipes made of the Inconel 625 nickel alloy in terms of their thermal efficiency, resistance to high-temperature corrosion and electrochemical corrosion resistance. It was ascertained that the use of fins as the extension of heat exchange surface increases the thermal efficiency of pipes almost by thrice without compromising high corrosion resistance in flue gas atmosphere and electrochemical corrosion.