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DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube

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DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube
Features Gallery Product Description Request A Quote
Surface Painting: Black Or Red
Tube OD:: 51 Mm Max.
Tube Length:: 18 Meters Max.
Tube Nos Of HH: 2 Pieces Of Plain Tubes
Fin Thickness:: 1.5mm ~3.5mm
Fin Pitch:: 10mm Min.
High Light:

BS3059 Square Fin Tube


BS3059 Boiler Fin Tube


51mm Square Fin Tube

Basic Infomation
Place of Origin: China
Brand Name: DELLOK
Certification: CE. ISO,EN10204. 3.1 Cert.
Model Number: HH FIN
Payment & Shipping Terms
Packaging Details: (1) Waterproof steel frame bundle package;(2)Steel frame case sealed by plywoods with each end capped.
Delivery Time: Ex-work within 5 weeks after order.
Payment Terms: L/C, T/T Contact us for details
Supply Ability: 60000 meters month
Product Description

90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube


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
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


Product Details
Tube details: Tube OD: 51 mm max.
Tube Length: 18 meters max.
Fin Thickness: 1.5mm ~3.5mm
Fin Pitch: 10mm Min.
Production Capacity: Daily capacity up to 20 tons;



Square or Rectangular H Fins are welded on a steel base tube. We call it H Fin Type Tubing. About this fin we provide additional services like Tube swaging, elbows, bends (90° / 180° or as per client's design). It has various uses in Economizers ,Heat exchangers, Marine boilers


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.


Acceptance Criteria

Approved drawing and the delivery conditions (TDC) of clients.


Surface Coating

Outside-Red oxide zinc phosphate primer and inside volatile corrosion inhibitor (VCI) in water soluble tablet form.



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
Carbon Steel
Stainless Steel

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


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.

Our Service:

1. Inquiry-Professional quotation, or send inquiry item more details

2. Confirm the price, lead time, payment term etc

3. Proforma Invoice send or online

4. Make the samples according to your request, send you photos or samples, arrange the production

5. Send the production line photos Confirm the estimated delivery time again.

6. End Production-Mass production products photos and samples will send to you for approval.

7. Inform the tracking number and check the status for clients

8. Order can be say "finish" when you receive the goods and satisfy with them

9. Feedback to our about Quality, Service, Market Feedback & Suggestion. And we can do better


DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube 0DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube 1DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube 2

DELLOK 90 Degree Bends Boiler HH Type 51mm BS3059 Square Fin Tube 3

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Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
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