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DELLOK BS3059 PT 1/ 2 OD 2'' HH Fins Marine Boiler Square Fin Tube with 90 Degree Bends

BS3059 PT 2 GR 360 , OD 2 , HH Fins Marine Boiler
  • Mobile:+8613761381662
  • Fax:+86 25 69755709
  • Email:commercial@bestfintube.com
Description

BS3059 PT 2 GR 360 , OD 2'' , HH Fins Marine Boiler Tube with 90 Degree Bends 

Description of BS3059 Tubes

Application 

For high, middle, low pressure boiler and pressure purpose.

Steel Grade

 BS3059-Ⅰ 320 CFS
 BS3059-Ⅱ360,440,243,620-460,622-490,S1,S2,TC1,TC2

End protection

Plastic Caps

Outside coating

Black painting, anti-corrosion oil, galvanized or as per required by customers

Surface treatment

Oil,varnish,Passivation,Phosphating,Shot Blasting

Inspection and test

Chemical Composition Inspection,Mechanical Properties Test.

Surface and Dimension Test, Non-destructive Test, Hydrostatic Test.

Delivery condition

 Annealed, Normalized, Normalized and tempered

 

 General fin tube production capacityGeneral 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 2 steel base tubeS. We call it HH or Doule 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:

  1. Economizers ,

  2. Heat exchangers

  3. Marine boilers

Specifications:
 

ItemsGeneral MaterialsPopular 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 
2. Stainless Steel: 
     TP409/410,TP304/304L,TP316/TP316L etc...

 

 

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:

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

  2. The Square or Rectangular Fins H-Finned Tubes are the preferred tube choice for high pressure boilers. 

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

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

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

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


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