Product Details
Stainless Steel U Bend Tube,Carbon Steel U Tube,heat exchanger U
fin tube,boiler U bend tube,U tube bundles,U tube coils
Quick Detail:
Stainless Steel U Bend Tubes are manufactured in accordance with
design and drawings.Bending radius, C to C distance and straight
leg length are required for U bending tubes.
Tube OD: OD76mm max.
Tube wall thickness: 0.5 mm to 8 mm
Bending Radius: From 1.5 mm To 1500mm
Developed length: 25 meters Max.
Description:
General Manufacturing process: U Bend Tubes are manufactured in accordance with design and
drawings. Bends portation could be heat treated as per clients’
requirements followed by hydrostatic or pneumatic tests if
required.
Basic parameters for U bent tubes:
- The integral low fins on straight portions are allowed; please
refer to our low fin tube data sheet.
- Marking is possible after bending on straight portions of U-bending
Tube.
- The manufacturing process of bare tubes is cold drawn or cold
rolled.
- The quality of bare tubes before bending is annealed, pickled and
bright annealed.
- Acceptance criteria: inspection test plans, design and drawings,
layout check.
- The U bent tubes are oiled or varnished for rust preventation and
stenciled at ends.
- Heat Treatment: stress relieved after U-Bending (Bending area plus
300mm of each leg).
- Delivery condition: Tube ends are square cut, free burrs,
internally dried and air blown clean, externally coated with
varnish at both ends. The desiccants are put into each package for
continental transportation as well.
Applications:
- For pressure vessels including heat exchangers
- For boiler and boiler-related equipment,such as superheaters and
economizers
Specifications:
Core tube: Any metallic materials, as carbon steel, low-alloy
steel, stainless steel, brass, copper, cooper-nickel alloys,
aluminum bronze, nickel alloys etc…
S/r | Carbon /alloy steel tubes and pipes for heat exchangers and boilers |
1 | Standard specification for carbon steel seamless tubes/pipe for
temperature services (ASTM A 106 Gr A/B/C) |
2 | Standard specification for carbon steel seamless tubes/pipe for
heat exchangers and condensers (ASTM A 179) |
3 | Standard specification for carbon steel boiler tubes/pipes for high
pressure services(ASTM A192) |
4 | Standard specification for seamless carbon steel boiler and
superheater tubes (ASTM A210 A1/C) |
5 | Standard specification for seamless alloy steel boiler and
superheater tubes (ASTM A213 T2/T11/T12/T22) |
6 | Standard specification for seamless alloy steel pipes for low
temperature services (ASTM A333 Gr. 1/6) |
7 | Standard specification for seamless carbon and alloy steel tubes
for low temperature services (ASTM A334 Gr. 1/6) |
8 | Standard specification for seamless Ferrite alloy steel pipes for
low temperature services (ASTM A335 P11/P12/P22) |
9 | Standard specification for seamless carbon steel tubes for boilers
and superheaters (BS3059) |
10 | Standard specification for seamless alloy steel tubes for boilers,
pipelines, pressure vessels for temperature up to 600 degree (DIN
17175) |
Competitive Advantage:
- We have more than 10,000 square meters workshop, including 3
bending finning machine with maximum OD76mm X8mm Thickness.
- Shanghai Port is our nearest seaport and airport, less than 2
hours’ drive away from our workshop, convenient transportation.
- Tube stock availability for general grade of carbon steel and
stainless steel
- Engineering quick know-how support.



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