ASME SA213 T12 High Efficiency Welded Helical Hfw Helical Spiral Serrated Finned Tube for Heat Exchanger Air Cooling

• After-sales Service: Supplied
• Warranty: 30years
• Type: Seamless
• Technique: Cold Drawn
• Material: Aluminium, Copper, Brass, Cupronickel, Carbon Stee
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Model NO.: Finned Tube
• Section Shape: Round
• Type1: Extruded Finned Tube
• Type2: Spiral Wound Finned Tube
• Type3: Embedded Finned Tube
• Type4: Corrugated Heat Exchange Tube
• Type5: Welded Finned Tube
• Type6: Cold Wound Steel Finned Tube
• Type7: Elliptical Finned Tube
• Type8: Longitudinal Finned Tube
• Application: Radiator
• Application2: Plate/Shell and Tube Heat Exchanger
• Application3: Steam Boiler
• Application4: Oil Exploitation
• Application5: Oil Refining
• Application6: Metallurgy
• Application7: Textile Printing
• Transport Package: Plywood Box
• Specification: 25.4 mm ~152.4 mm
• Trademark: EZS
• Origin: China
• HS Code: 730431
• Production Capacity: 5000 Tons/Year

Product Description

Product Description

Standard:	ASTM A213 / ASME SA213	Tube Material:	Carbon Steel, Stainless Steel, Copper Etc, Alloy Steel
Fin Material:	Aluminum, Carbon Steel, Stainless Steel	Type:	High Frequency Welded
Application:	Heater Parts,Refrigeration Parts,heat Exchanger,Cooler
High Light:	T12 Welded Helical Finned Tube ,  Helical Spiral Serrated Finned Tube ,  Air Cooling Stainless Steel Seamless Pipe

 

ASME SA213 T12 High Efficiency Welded Helical HFW Helical Spiral Serrated Finned Tube For Heat Exchanger Air Cooling

 

HFW Solid Finned Tubes short for High Frequency Welded Helical Spiral Solid Finned Tube

Helical Finned Tubes provide the designer with high thermal efficiency and compact design solutions for a whole range of heat exchangers where clean flue gases are used. Helical finned Tubes are manufactured in both Solid and Serrated type.

Helical Solid Finned Tubes are manufacturer by helically wrapping continuous fin strip on tube. HF Resistance Welding Usually Employs Frequency Of 400 kHz. The fin wound around the tube And Continuous weld. The fin strip is wounded spirally onto the tube and welded continuously with a high frequency electrical process to the base tube along the spiral root. The fin strip held under tension and confined laterally as it is formed around the tube, thereby ensuring that the strip is in forceful contact with the base tube surface. A continuous weld is applied at the point where the fin strip first begins to bend around the tube diameter, using the gas metal arc welding process.

 

This welded steel finned tube configuration can be used for any practically heat exchanger application, and is particularly suited to high temperature and high pressure applications. The important features of this configuration are efficient, effective bond of fin to tube under all conditions of temperature and pressure, and ability to withstand high fin-side temperatures

Chemical Requirements

Grade	UNS Designation	Composition, %
		Carbon	Manganese	Phosphorus, max	Sulfur, max	Silicon	Chromium	Molybdenum
T2	K11547	0.10-0.20	0.30-0.61	0.025	0.025	0.10-0.30	0.50-0.81	0.44-0.65
T5	K41545	0.15	0.30-0.60	0.025	0.50	0.50	4.00-6.00	0.45-0.65
T9	K90941	0.15	0.30-0.60	0.025	0.025	0.25-1.00	8.00-10.00	0.90-1.10
T11	K11597	0.05-0.15	0.30-0.60	0.025	0.025	0.50-1.00	1.00-1.50	0.44-0.65
T12	K11562	0.05-0.15	0.30-0.61	0.025	0.025	0.50	0.80-1.25	0.44-0.65
T17	K12047	0.15-0.25	0.30-0.61	0.025	0.025	0.5	0.80-1.25	0.44-0.65
T21	K31545	0.05-0.15	0..30-0.60	0.025	0.025	0.5-1.00	2.65-3.35	0.80-1.06
T22	K21590	0.05-0.15	0.30-0.60	0.025	0.025	0.50	1.90-2.60	0.05-0.30

 

Technical details/base tube details/Fin details

Pipe Diameter: Min. OD 20mm to Max. OD 219mm.

Tube Thickness: Min. 2mm to 16mm

Pipe material: stainless steel, alloy steel, carbon steel, Corten steel, duplex steel, super duplex steel, Inconel, high chromium high nickel and some materials such as Incolloy, CK 20 material.

 

Fin detail

Fin Thickness: Min. 0.8 mm to max. 4 mm

Fin Height: 0.25" (6.35 mm) minimum to 1.5" (38 mm) maximum

Fin Density: Minimum 43 fins per meter, maximum. 287 fins per meter

Materials: Carbon Steel, Stainless Steel, Alloy Steel, Weathering Steel, Duplex Steel and Incolloy.

 

If you need a quick quote, please send as follows:

1. The number of pieces,

2. Base pipe: (1) diameter, (2) thickness, (3) length and (4) material specification.

3. Fins: (1) material specification, (2) type (solid or serrated), (3) height, (4) thickness, (5) pitch, (5) fin length and (6) finless section .

If necessary, weld preparation details.

4. Desired delivery date.