Product Details
26FPI / 1024 FPM / 0.976mm , A334 Gr 1 / 3 / 6 Carbon Steel
Threaded Fin Tubes
ASTM A334 / A334M: Seamless and Welded Carbon and Alloy-Steel Tubes for
Low-Temperature Service
Quick Detail:
General Low Fin Tubes Production Capacity | Specifications of Low Fin Tubes('N' Fins) |
Finning Facility: 10 finning machines; Daily capacity up to 3000 meters; | Tube OD: 12.7 mm~25.4mm Tube Length: 18 meters max. Fin Height: 1.2 mm ~2.77mm Fin Thickness: appr. 0.3mm Fin Pitch: 30 FPI /28 FPI/ 26 FPI/ 36 FPI /43 FPI |
Description:
Manufacturing process: The fins are rolled out of outer wall of the plain tubes by a pass
roller. Tubes and fins are in same piece tube. We call it “N” fin type.
More Carbon Steel Tube Materials Sheet We're Supplying:
Chinese Standard | Steel Grade/ No. | American Standard | Steel Grade/ No. |
GB5310 | 20G,15MoG,12CrMoG, 12Cr2MoG,15CrMoG, 12Cr1MoVG, | ASTM A106 | GR. A,B,C |
GB9948 | 10,20,12CrMo,15CMo | ASTM A53 | GR.A,B |
GB3087 | 10,20 | ASTM A192 |
|
|
| ASTM A179 |
|
|
| ASTM A210 | A-1,C |
|
| ASTM A333 | GR.1,GR3,GR6 |
|
| ASTM A334 | GR.1,GR3,GR6 |
|
| ASTM A209 | T1, Ta, Tb |
German standard | Steel Grade/ No. | Japanese standard | Steel Grade/ No. |
DIN17175 | ST35.8, ST45.8 | JIS G3454 | STPG370,STPG410 |
DIN1629 | ST37.0, ST44.0, ST52.0 | JIS G3461 | STB340, STB410, STB440 |
British Standard | Steel Grade/ No. | European standard | Steel Grade/ No. |
BS3059-Ⅰ | 320 | EN10216-1 | P195TR1/TR2,P235TR1/TR2, P265TR1/TR2 |
BS3059-ⅡS1/S2; TC1/TC2 | 360,440, | EN10216-2 TC1,TC2 | 195GH,P235GH, P265GH, |
Delivery Range of Low Fin Tubes
We can provide the integral low fin tubes with un-finned section gaps( 5mm Min.) in the middle of core tube OR
bent with designed Bend Radius.
Quality Test:
The integral low fin tube quality is assured by hydrostatic or
pneumatic tests, eddy current tests & MARCO tests in order to
verify design specifications.
Acceptance Ceritia:
WOLVERINE / HPT / GEWA-K & GEWA-KS
Delivery Condition:
Tube ends are square cut, free burrs, internally dried and air
blown clean, externally coated with varnish.
The desiccants are put into the each package for continental
transportation.
Applications:
The Integral Low Finned Tubes find the preference in the following
industrial sectors:
- Heating systems
- Ventilation systems
- Refrigeration and climate control systems
- Mechanical engineering
- Automotive manufacturing
- Chemicals and pertrochemical and power plant technology
Specifications:
Tube and fins consist of same tube and materials as carbon steel ,
low-alloy steels , stainless steel , brass , copper , cooper-nickel
alloys , aluminum bronze , nickel alloys , titanium etc...
Data sheet of Low Fin Tubes
Plain tube (mm) | Finned section dimensions (mm) | Ratio | De |
D×t | Tp | dd | dr | di | η | mm |
19×2 | 0.8 | 18.8 | 17 | 134 | 2.8 | 17.9 |
19×2 | 1 | 18.8 | 16.8 | 13.4 | 2.5 | 17.8 |
19×2 | 1.25 | 18.8 | 16.6 | 13 | 2.2 | 17.8 |
19×2 | 1.5 | 18.8 | 16.6 | 13 | 2 | 17.7 |
19×2 | 2 | 18.8 | 16.4 | 13 | 1.7 | 17.5 |
25×2.5 | 0.8 | 24.8 | 23 | 18.8 | 2.8 | 23.9 |
25×2.5 | 1 | 24.8 | 22.6 | 18.8 | 2.75 | 23.7 |
25×2.5 | 1.25 | 24.8 | 22.3 | 18 | 2.5 | 23.6 |
25×2.5 | 1.5 | 24.8 | 22.3 | 18 | 2.2 | 23.5 |
25×2.5 | 2 | 24.8 | 22 | 18 | 1.8 | 23.4 |
25×2.5 | 2.5 | 24.8 | 22 | 18 | 1.6 | 23.3 |
D------Outside diameter of plain end section Dof----Diameter of top fins Dr-----Root diameter of finned section Di-----Inside diameter of finned section T------Wall thickness of plain end section Tp-----Fin pitch De----Equivalent diameter of finned tube L------Plain tube end length |
Please email us for more information. |
Competitive Advantage:
- We have more than 10,000 square meters workshop, including 10
finning machines, daily extrusion capacity up to 3,000 meters.
- The finning machines of Integral Low Fin Tubes are designed and
assembled by ourselves and we can offer you finning machines and
all accessories etc...
- The Integral Low Fins are rolled out of the tube surface to
increase the tubes external surface area, without affecting any
others dimension.
- Low Fins are very useful for tight condensers and exhibits high
efficiency of heat transfer.
- Economical solutions of heat exchange problems of media with
different heat conduction abilities or different current
conditions.
- High chemical-, thermal- and mechanical resistance, suitable for
rough operation conditions.

Company Profile
JIANGSU RELIANCE THERMAL EQUIPMENT CO., LTD
About Reliance
Jiangsu Reliance Thermal Equipment Co., Ltd is all about thermal transfer finned tubes products. We have a
long-term fabrication and supply experience in the business of FINING MACHINES and FINNED TUBES used in air-cooled heat exchanger, economizers, boilers, gas
turbines, refining and petrochemical industries ect.
Advantages
- One-stop manufacturer shop from core tube supply to fin tube
machines
- ISO 9001:2015 certified company
- Experienced and dedicated management and qualfied manpower
- Quickest response, competitive price, highese quality and shortest
schedule
- Tube stock availability for general grades of carbon steel and
stainless steel
- Technical support services for fin tube machines and replacement
accessories
FINNED TUBES PRODUCTS & SERVICE AVAILABLE
I. Mechanical-forming thermal-transfer tubes |
▲ DR type - Extruded high fin tube (solid and serrated fins) ▲ L type - Tension wound spiral fin tube ▲ LL type - Overlapped footed spiral fin tube ▲ KL/KLM type - Tension wound knurled footed fin tube ▲ G base type - Embedded fluted fin tube ▲ Low Fin type - integral low fin tube (knurled option) ▲ I type - Crimped spiral fin tubes ▲ Corrugated tube, spiral tube, U tube bundles ▲ Elliptical Finned Tubes |
2. Welding-forming thermal-transfer tubes |
▲HFW type - ERW High frequency resistance welding fin
tube(Solid & Serrated Fins) ▲H/HH type - DC welding square or rectangular fin tube) ▲Studs type - ERW studded tube) ▲Longitudinal welding fin tube (standard ,perforated,cut &
twist) ▲Single Row Flat finned tube |
3. Others service on request |
▲Elbows, bends, U-tube, tube swaging ▲Tube spacer box (Material: Stainless Steel,
Aluminum,Galvanized/Zinc) |
Fabrication Capacities
(1) Fourteen extrusion fining lines, daily capacity around 15,000 meters
(2) Five type L/LL/KL fining lines, daily capacity around 5000
meters
(3) Seven G- base fining lines, daily capacity around 7000
meters
(4) Two ERW studding lines, daily capacity around 80000 studs
(5) Four ERW High Frequency Spiral fining lines, daily capacity
around 30 tons
(6) Three bending machines, maximum capacity 76X4
(7) Five DC ERW H/HH fining lines, daily capacity around 20 tons
(8) One PLC high speed punch presser
Reliance have become a qualified manufacturer and reliable supplier for
high-quality thermal transfer finned tubes used in air-cooled heat
exchanger,economizers,boilers,gas turbines,refining and
petrochemical industries ect.
If you are interested in any of our products, please do not
hestitate to contact us @reliancemfg@126.com