DELLOK SA210 Gr. A1 Seamless Carbon Steel Rectangular Double H welding Fin Tube for Economizer
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Description
SA210 Gr. A1 Seamless Carbon Steel , Rectangular 'Double H' welding Fin Tube for Economizers
Description
More 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
| General fin tube production capacity | General specfications of HH(Double H) fin tube |
Production Facility: 6 finning machines; Daily capacity up to 20 tons; | Tube OD: 51 mm max. Tube Length: 18 meters max. Fin Thickness: 1.5mm ~3.5mm Fin Pitch: 10mm Min. |
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:
| Items | General Materials | Popular ASTM /ASME Materials |
| Core Tube Material | Carbon Steel | 1. Carbon Steel: A106 / A179 /A192 / A210 etc... |
Studs | Carbon Steel | 1. Carbon Steel
|
Why we choose HH welding fin tube: High efficiency, minimum power loss, easy cleaning.
Descriptions of HH Fin Tube | Popular Specifications we make |
Tube OD(mm) | 25mm to 51mm |
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:
Shanghai Port is our nearest seaport and airport, less than 2 hours’ drive away from our workshop, convenient transportation.
The Square or Rectangular HH Fin 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.
