This news page covers boiler and heat exchanger tubes in relation to H/HH Type Fin Tube. The content highlights inspection and testing requirements, end-use applications. Buyers can use the page to check whether the product, grade, size range, inspection requirements and delivery details match their inquiry.
Square/Rectangular Welding Fin Tube (“H”/”HH” Type)
Square or Rectangular fins are welded onto ONE steel base tube. We call it 'H' fin Tube. Square or Rectangular H Fins are welded onto TWO steel base tube. We call it 'HH' or 'DOUBLE H' Fin Tube.
The Square or Rectangular H/HH Finned Tube quality is assured by hydrostatic or pneumatic tests, eddy current tests and tensile tests in order to verify the mechanical bonding between inner tubes and outer fins.
Square/Rectangular Welding Fin Tubes are used in economizers, boilers, marine boilers etc… Operation temperature: 550℃max.
Tube materials: carbon steel, stainless steel, Alloy steel can be applied.
Fin material: carbon steel, stainless steel
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