A789 UNS2205 duplex stainless steel with cooper Fin Tube , OD1'' , 8FPI Grooved G Type
ASTM A789 / A789M : Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
Standards: ASTM/ASME A789/SA789, A790/SA790,A450,A530
Material: UNS S31803(Cr22Ni5Mo3/1.4462)/2205,UNS S32750(1.4410),UNS S31500(Cr18NiMo3Si2),
UNS32760(1.4501)
Introduction:
The aluminum fin strip is tension wound and placed into a groove cut into the tube. The depth of this tube is about 0.4mm, and all the goods are Zinc or Aluminum metalized applied by an electro spray arc system coating on surface. The goods will be delivered when 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 transportation as well. Besides it applies to many areas such as Heat exchangers units for power plant(electric, nuclear, thermal and geothermal power plants), High corrosive systems (condensers, evaporators, sea water desalinations, fertilizing, urea systems, ammonia, gas, corrosive acids), The petroleum, chemical and petrochemical industries, The food processing and refrigeration industries, Natural gas treatment. And we provide the tube support box, clamp or spacer box (Materials: Aluminum, Zinc and Stainless Steel).
Acceptance criteria:
API Standard 661(Air-Cooled Heat Exchangers for General Refinery Service) or the delivery conditions.
Competitive Advantage:
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The Grooved G type Finning Machines are designed and assembled by ourselves and we can offer you finning machine and all accessories etc...
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The contact of manufacturing Grooved fin tubes is designed for a high wall temperature of up to 350°C.
| General specifications of HF welding fin tube |
| Tube OD : 50.8mm(2'') max.
Tube Length : No limit
Fin Height : ~16 mm max.
Fin Thk. : 0.4mm average, regular thickness is 0.25mm~0.6mm
Fin Pitch : 2.1 mm (12FPI) min. |
| General HF welding production capacity |
| G Fin Finning Lines: 7 finning machines.
Daily capacity up to 7,000 meters. |
Specifications:
Grooved G type Finned Tubes are combined with two different materials.
| Items | General Materials | Popular ASTM Materials |
| Core Tube Material | carbon steel, ow-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 |
| Fins Material | 1. Aluminum 2. Copper. 3. Steel | 1. Aluminum(Alu.1100/1060/1050) 2. Copper. 3. Steel |
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
