Extruded Type Finned Tube for Heat Exchangers

• Customization: Available
• After-sales Service: 2 Years
• Warranty: 2 Years
• Application: Heater, Cooler, Condenser
• Principle: Mixing Heat Exchanger
• Style: Steel Type
• Material: Stainless Steel
• Tube Material: Stainless Steel,Carbon Steel,Alloy Steel,Copper
• Fin Material: Aluminum, Copper, Steel
• Fin Thickness: 0.2-0.4mm
• Common Specifications: 5/8"-1-1/2"
• Test: Ht/Et/Ut
• Delivery Time: Stock 7 Days; Mto 30 Days
• Trade Terms: EXW, Fob, CFR, CIF etc.
• Transport Package: Plywooden Box
• Specification: Extruded Type Finned Tube
• Trademark: GH-STEEL
• Origin: China
• HS Code: 7306400000
• Production Capacity: 800000 PCS/Year

Product Description

Product Description

 

 

The processing technology of steel-aluminum Extruded Type Finned Tube is to first process aluminum tube and steel tube into bimetallic composite tube, and then form fins after mechanical cold rolling. The aluminum fins are tightly combined into a bimetallic tube finned tube (composite extruded finned tube)
 
Steel-aluminum rolled finned tubes are integrally rolled from aluminum tubes, and have the characteristics of no contact thermal resistance, high strength, thermal shock resistance and mechanical shock resistance, good thermal performance, and a considerable expansion heat transfer surface. This finned tube heat exchanger is in front of the tube or around the plate.

Steel-Aluminum Extruded Type Finned Tube Quick Details:
Core tube material:
1. Carbon steel: A179, A192, SA210 Gr A1/C, A106 Gr B
2. Stainless steel: TP304/304L, TP316/TP316L/316Ti, A789 S31803/S2205
3. Copper: UNS12200/UNS14200/UNS70600, CuNi70/30, CuNi 90/10
Fin material:
1. Aluminum (Alu.1100, Alu.1060)
2. Copper.

Fin type: Solid plain
Fin Tube Type: G Type Embedded
Outer diameter (OD): 16mm Min~50.8mm max.
Tube length: up to 18,000 mm.
Fin height: 16.5mm max.
Fin thickness: generally 0.4mm~0.6mm
Fin pitch: 2.1mm minimum (12FPI)
Surface Protection: Both bare ends shall be zinc or aluminum metallized by electrospray arc system coating.
Accessories: Tube support boxes, clamps or spacer boxes (materials: aluminium, zinc and stainless steel).
 
Additional Info
Payment Terms:T/T, LC
Delivery: 15-30 days after payment
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Iron frame packing boxes and the desiccants are put into each package for continental transportation as well. or as required
 
 
The case of Steel-Aluminum Extruded Type Finned Tube
 

Common Specifications of Steel-Aluminum Extruded Type Finned Tube

All dimensions are in Inches and specification upon your requests
Tube OD	Fin Height	Fin Thickness	Fins per Pitch(Density)
5/8	3/8,1/2	.015/.016/ .020	4, 5, 6, 7, 8, 9, 10, 11, 12
3/4	3/8,1/2,5/8	.015/.016/ .020	4, 5, 6, 7, 8, 9, 10, 11, 12
1	3/8,1/2,5/8	.015/.016/ .020	4, 5, 6, 7, 8, 9, 10, 11
1 1/4	3/8,1/2,5/8	.015/.016/ .020	4, 5, 6, 7, 8, 9, 10,
1 1/2	3/8,1/2,5/8	.015/.016/ .020	4, 5, 6, 7, 8, 9, 10, 11
1 3/4	3/8,1/2,5/8	.015/.016/ .020	4, 5, 6, 7, 8, 9, 10
2	3/8,1/2,5/8	.015/.016/ .020	4, 5, 6, 7, 8, 9, 10

We can customize The case of Steel-Aluminum Extruded Type Finned Tube according to your drawings
Example:

Manufacturing Process:
The processing technology of steel-aluminum cold-rolled finned tube is firstly processed from aluminum tube and steel tube into bimetallic composite tube, and then mechanically cold-rolled to form fins. Using the physical properties of the aluminum tube, a finned tube in which the tube with the steel tube as the core and the cold-rolled aluminum fins are tightly integrated is made.
 
Fin Type:
Fins are solid flat or serrated into 12, 16 or 24 segments or according to your design.
 
Finless part
Both end with appr. 10mm~50mm, there is a gap in the middle (no fin part).
 
Steel-Aluminum Extruded Type Finned Tube with two different materials
Core tube material: carbon steel, low alloy steel, stainless steel, brass, copper, copper-nickel alloy, aluminum bronze, nickel alloy.

Core Tube Material
Carbon Steel Tubes	A179, A192, SA210 Gr A1/C, A106 Gr B, A333 Gr3 Gr6 Gr8, A334 Gr3 Gr6 Gr8, 09CrCuSb, DIN 17175 St35.8  St45.8, EN 10216 P195 P235 P265, GB/T3087 Gr10 Gr20, GB/T5310 20G 20MnG,
Alloy Steel Tubes	A209 T1 T1a,A213 T2 T5 T9 T11 T12 T22 T91,A335 P2 P5 P9 P11 P12 P22 P91,EN 10216-2 13CrMo4-5 10CrMo9-10 15NiCuMoNb5-6-4
Stainless Steel Tubes	TP304/304L, TP316/TP316L TP310/310S TP347/TP347H
Copper Tubes	UNS12200/UNS14200/UNS70600, CuNi70/30, CuNi 90/10
Titanium Tubes	B338 Gr 2

 
Fin material:
1. Aluminum (Alu.1100, Alu.1060)
2. Copper.
3. Steel
 
 
Quality Control for Steel-Aluminum Extruded Type Finned Tube
Inspection and Tests Performed
Chemical Composition inspection,
Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test),
Surface and Dimension Test,
No-destructive Test,
Hydrostatic Test.
 
Acceptance Criteria
API Standard 661 (Air-Cooled Heat Exchangers for General Refinery Service) or Delivery Conditions (TDC).
 
Features of Steel-Aluminum Extruded Type Finned Tube
1. High heat transfer performance and small contact thermal resistance;
2. The contact area between the fin and the tube is large, and the fit is tight and reliable;
3. Good corrosion resistance and stable long-term performance;
4. The fins have good rigidity and are not easily deformed.
 

Application of Steel-Aluminum Extruded Type Finned Tube
Steel-Aluminum Extruded Type Finned Tube is widely used in steel, petroleum, chemical, machinery, shipbuilding, power station, hospital and food industries.

Packaging picture of Steel-Aluminum Extruded Type Finned Tube