Delivery Time:Ex-work within 5 weeks after order.
Certification:SGS, ABS, BV, TUV…

A213 TP304 / TP304L ,Stainless Steel H Fin Welded Heat Exchanger Tubes​

ASTM A213 / ASTM A269, TP304/ TP304L , TP316 / TP316L , Bright Annealed Stainless Steel Tube

Description: 

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.

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

 
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.

 
 
Competitive Advantage:

We have more than 10,000 square meters workshop, including 6 H-FIN TYPE finning machines, daily extrusion capacity up to 20 tons. The Square or Rectangular Fins H-Finned 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.