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Payment Type: L/C,T/T,D/P
Transportation: Ocean,Land,Air,Express
$1-50 /Kilogram
Brand: YUHONG
Standard: Gb, Astm, Jis, Din
Section Shape: Round
Application: Boiler Pipe
Production Process: Cold Rolled
Whether Alloy: Is Alloy
Tolerance: ±10%
Category: Seamless Steel Pipe
Yuhong can produce ASME SB163 UNS N08825 Extruded Type Finned Tube
Yuhong Group has been operating stainless steel/duplex/nickel seamless pipes for more than 10 years, with annual sales of more than 80,000 tons of stainless steel/duplex/nickel seamless pipes. Our clients have covered more than 45 countries. Our stainless steel seamless pipes are widely used in mining, energy, petrochemical, chemical, food mills, paper mills, gas and fluid industries and more.
Extruded bimetal finned tube
The finned tube is composed of iron-aluminum or copper-aluminum tube rolled fins, with a tight feather shape, small thermal resistance, good heat transfer performance, high strength, small flow loss, strong corrosion resistance, not easy to deform, cold resistance and corrosion resistance. hot. Long service life under conditions, etc.
The fins are smooth and burr-free as a whole and easy to clean. When the air-conditioning project is heating and cooling, it is easy to make the surface of the fins wet and cold. In the case of heat exchange such as drying and heating, the surface is anodized and the color is beautiful, which can effectively prevent surface corrosion.
Rolled Finned Tubes are integrally rolled from aluminum tubes, and have the characteristics of no contact thermal resistance, high strength, thermal shock and mechanical shock resistance, good thermal performance, and a considerable expansion heat transfer surface. Such Finned Tube Heat Exchangers are located at the front of the tubes or around the plates.
The extruded finned tube is a bimetallic tube whose outer surface of aluminum is processed into fins by cold plastic deformation.
ASME B163 covers nickel and Nickel Alloy Seamless Tubes for condenser and heat exchanger services. This includes outer diameter and average wall, or outer diameter and minimum wall tube. Tubing shall be supplied in the alloys and conditions specified in this specification. Materials shall meet the specified compositional limits for nickel, copper, molybdenum, iron, manganese, carbon, silicon, chromium, aluminum, titanium, phosphorus, cerium, zirconium, yttrium, boron, cobalt, niobium, tungsten, and nitrogen. The tensile strength, yield strength, elongation and Rockwell hardness of the material shall meet the mechanical property requirements specified in this specification. Test methods such as chemical analysis, tension, rounding procedures, Rockwell hardness, grain size and hardness conversion should be performed.
SB163 SB423 N08825 Nickel Alloy Seamless Pipe is a nickel-iron-chromium alloy with the addition of molybdenum and copper. The chemical composition of this nickel steel alloy is designed to provide superior resistance to many corrosive environments. It is similar to Alloy 800 but has higher water corrosion resistance. It has excellent resistance to reducing and oxidizing acids, stress corrosion cracking, and localized corrosion such as pitting and crevice corrosion. Alloy 825 Incoloy 825 is particularly resistant to sulfuric and phosphoric acid. This nickel steel alloy is used in chemical processing, pollution control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production and pickling equipment.
Chemical Analysis of ALLOY 400 (UNS N04400)
Monel 400®, Nickelvac® 400, Nicorros® 400
| C | MN | P | S | Si | Cr | Ni | M | Cu | Cb +Ta | Al | Fe | other |
| .25max | 1.5 max | . 01 max | .5 max | 63.0 min | 27-33 | 2.30- 3.15 | 2.5 max |
Specifications
| Monel 400 Sheet / Plate | Monel 400 Round Bar | Monel 400 Pipe | Monel 400 Tube | Monel 400 Fittings | Monel 400 Forgings |
| QQ N 286 | ASME SB-865 AMS 4676 QQ N 286 | QQ N 286 AMS 4676 |
Details as below:
G fin Finning lines: 5 finning machines.
Daily capacity up to 3500 meters.
Tube OD: 50.8mm(2'') max.
Tube Length: 18,000mm max.
Fin Height: 16.5 mm max.
Fin Thickness: generally 0.4mm ~0.6mm
Fin Pitch: 2.1 mm (12FPI) min.
Yuhong's Manufacturing process: The aluminum fin strip is tension wound and placed into a groove cut into the tube with appr. 0.4mm fluted depth.
Surface Protection of Plain Ends
Both ends of Grooved G Type Fin Tubes shall be Zinc or Aluminum metalized applied by an electro spray arc system coating.
Acceptance criteria
API Standard 661(Air-Cooled Heat Exchangers for General Refinery Service) or the delivery conditions (TDC).
Accessories
Yuhong also can supply Tube support box, clamp or spacer box (Materials: Aluminum, Zinc and Stainless Steel) for our clients.
Delivery condition:
Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of G-Fin Embedded Finned Tube.
The desiccants are put into each package for continental transporation as well.
Applications:
The common application fields are:
Specifications:
Grooved G type Finned Tubes are combined with two different materials.
| Items | General Materials | Popular ASTM Materials |
| Core Tube Material | Carbon steel, low-alloy steel, stainless steel, brass, copper, cooper-nickel alloys, aluminum bronze, nickel alloys.
| 1. Carbon Steel: A179, A192,SA210 Gr A1/C, A106 Gr B 2. Stainless Steel: TP304/304L,TP316/TP316L/316Ti, A789 S31803/S2205 etc... 3. Copper:UNS12200/UNS14200/UNS70600, CuNi70/30,CuNi 90/10 4.Nickel alloy 600, 601, 625 etc 5.Incoloy alloy: 800, 800H, 800HT, 825 etc 6.Monel 400, K500 etc. |
| Fins Material | 1. Aluminum Alloy 2. Copper. | 1. Aluminum (Alu.1100,Alu.1060) 2. Copper. |
| 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 | 6, 7, 8, 9, 10, 11, 12 |
| 3/4 | 5/8,1/2 | .015/.016/ .020 | 6, 7, 8, 9, 10, 11, 12 |
| 1 | 5/8,1/2 | .015/.016/ .020 | 6, 7, 8, 9, 10, 11, 12 |
| 1 1/4 | 5/8,1/2 | .015/.016/ .020 | 6, 7, 8, 9, 10, 11, 12 |
| 1 1/2 | 5/8,1/2 | .015/.016/ .020 | 6, 7, 8, 9, 10, 11, 12 |
| Please kindly email us for more information or any firm inquiry. | |||
Our Competitive Advantage:
| Element | % |
| Nickel | 38.0-46.0 |
| Chromium | 19.5-23.5 |
| Molybdenum | 2.5-3.5 |
| Copper | 1.5-3.0 |
| Titanium | 0.6-1.2 |
| Iron | 22.0 min (~33%) |
| Carbon | 0.05 max |
| Manganese | 1.0 max |
| Sulphur | 0.03 max |
| Silicon | 0.5 max |
| Aluminium | 0.2 max |
NO8825 Physical Properties:
| Density / Specific Gravity | 8.1 kg/m³ 0.30 lb/in³ |
| Melting point | 1370-1400℃ |
NO8825 Mechanical Properties:
| Alloy state | Tensile strength | Yield strength | Elongation | Brinell hardness |
| Rm N/mm² | R P0. 2N/mm² | A 5 % | HRB Max | |
| N08825 | 517 | 172 | 30 | 200 |
| Hot Finished | ||||
| N08825 | 586 | 241 | 30 | 200 |
| Cold Finished |
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.
| Selling Units | : | Kilogram |
|---|---|---|
| Package Type | : | Steel Frame Plywood Case Packing |
Packaging: Steel Frame Plywood Case Packing
Transportation: Ocean,Land,Air,Express
Place of Origin: CHINA
Certificate: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81
Port: Shanghai Port,Ningbo Port,Tianjin Port
Payment Type: L/C,T/T,D/P
Incoterm: EXW,CIF,CFR,FOB
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