| Product Name: | Carbon Steel H Type Finned Tube | Standard: | ASTM A192/A192M/A179/A179M |
|---|---|---|---|
| Bare Tube Material: | A192/A179 | Fin General Material: | Carbon Steel， Alloy Stainless Steel |
| Application: | Economizers;Heat Exchangers;Marine Boilers | Bare Tube Diameter: | 25mm-63mm |
| Fin Pitch: | 8-30mm | Fin Thick: | 1.5-3.5mm |
| High Light: | SMLS Boiler Fin Tube， A192 Carbon Steel Boiler Fin Tube， ASTM A192 Finned Tube | ||
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:
- 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 |
| 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. | |
