Square Rectangular Welded 16Mn H Fin Tube For Steam Economizers

Description:



General H type Fin production capacity

General specifications of H type fin tubes
Production Facility: 6 finning machines;
Daily capacity up to 20 tons;

Tube OD: 73 mm max.
Tube Length: 18 meters max.
Fin Thickness: 1.5mm ~3.5mm
Fin Pitch: 10mm Min.


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 Rectangular 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
Specifications:


Items General Materials Popular ASTM /ASME Materials
Core Tube Material
Carbon Steel
Alloy Steel
Heat Resistant Steel,
Stainless Steel

1. Carbon Steel: A106 / A179 /A192 / A210 etc...
2. Stainless Steel: TP304/304L,TP316/TP316L, TP347 etc...
3. Alloy Steel: P5,T5,P9,T9,T11,T22

Fin
Material

Carbon Steel
Stainless Steel

1. Carbon Steel
2. Stainless Steel:
TP409/410,TP304/304L,TP316/TP316L etc...



Dimensions Data Sheet We're Supplying.

General Descriptions of H-fins

Popular Specifications we make

Tube OD(mm)

25mm to 73mm

Tube Wall thickness(mm)

2.5mm Min.

Tube length(mm)

18000mm Max.

Fin thickness(mm)

1.5mm to 3.5mm

Fin pitch(mm)

10mm Min.

Please email us for more information.



Competitive Advantage:

We have more than 10,000 square meters workshop, including 6 H-FIN TYPE
finning machines, daily extrusion capacity up to 20 tons.
The Square or Rectangular Fins H-Finned Tubes are the preferred tube choice
for high pressure boilers.
Fins can be manufactured by stamping process in almost any shape and size.
In-line fin and tube spacing allows for cleaning with excellent choice in
sooting or fouling atmospheres.
Fin height and spacing are limited only by heat transfer considerations.
Fins and tubing can be similar or dissimilar metals.

Click to Enlarge