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Contact name:Jikin Cai
Yuhong Group Co.,Ltd |
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ASTM A192/ASTM A179 Carbon Steel Seamless H Type Finned Tube For Boiler
Advantages of HH/H finned tube
1) The H-type finned tube economizer instead of the smooth tube
economizer can increase the heat exchange area, reduce the number
of tubes, increase the flue gas flow section, reduce the flue gas
velocity and wear.
2) The H-type finned tube can be made into a "double H" type finned
tube with double tubes, which has good structural rigidity and can
be used in the case of long tube banks.
3) The H-type finned tube economizer is arranged in sequence. The
H-type finned tube divides the space into several small areas,
which has the function of flow equalizing and greatly reduces the
wear
4) The best soot blowing effect can be obtained by forming a
straight channel on both sides of H-shaped fins.
5) The space is compact, the overall weight is greatly reduced, and
the cost is reduced
6) Energy saving and low power consumption: the economizer used for
the generator unit can reduce the heat loss of exhaust gas of the
generator by at least two thirds, and only consume 2-4kw per ton of
steam
7) Simple operation and maintenance; labor saving: the economizer
is assembled as a whole, with fewer moving parts, simple structure
and easy installation. High level of automation, simple operation
and maintenance, can reduce the number of operators.
Descriptions:
| 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. |
More Tubes Materials
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 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:
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 |
| Studs Material | Carbon Steel Stainless Steel | 1. Carbon Steel |
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. | |
