SA179 A192 Seamless Carbon Steel Double H Welding Fin Tube for Economizer

We are professional A106/SA179/A192/A210 SA210 Gr. A1 Seamless Carbon Steel Square Rectangular Double H welding Fin Tubes pipe finned tubes pipe tubings fintubes for Economizer from china

Tube Materials
ASTM A106 / 106M : Seamless Carbon Steel Pipe for High-Temperature Service 
ASTM A179 / A179M : Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
ASTM A192 / A192M : Seamless Carbon Steel Boiler Tubes for High-Pressure Service
ASTM A210 / A210M : Seamless Medium-Carbon Steel Boiler and Superheater Tubes

Manufacturing process

Square or Rectangular Fins are welded on two steel base tubes. We call it Double H (HH) fin type.

Manufacturing Process
Square or Rectangular H Fins are welded on a steel base tube. We call it H Fin Type Tubing.

 
Acceptance Criteria
Approved drawing and the delivery conditions (TDC) of clients.
 
Additional Services
Tube swaging, elbows, bends (90° / 180° or as per client s design).
 
Quality Tests
The Square or Rectangualr H 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.
 
Surface Coating
Outside-Red oxide zinc phosphate primer and inside volatile corrosion inhibitor (VCI) in water soluble tablet form.
 
Delivery Condition: Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of Square or Rectangualr Fin Tube.
 
Applications:

Economizers ,

Heat exchangers

Marine boilers

Applications:

Economizers

Boilers

Heat exchangers

Specifications:

Why we choose HH welding fin tube: High efficiency, minimum power loss, easy cleaning.

Competitive Advantage:

1.We have more than 10,000 square meters workshop, including 6 H-FIN or HH-FIN TYPE finning machines, daily extrusion capacity up to 20 tons.

2.Qingdao Port is our nearest seaport and airport, less than 2 hours drive away from our workshop, convenient transportation.

3.The Square or Rectangular HH Fin Tubes are the preferred tube choice for high pressure boilers.

4.Fins can be manufactured by stamping process in almost any shape and size.

5.In-line fin and tube spacing allows for cleaning with excellent choice in sooting or fouling atmospheres.

6.Fin height and spacing are limited only by heat transfer considerations.

7.Fins and tubing can be similar or dissimilar metals.

Jay Hou