U Bend Seamless Tubes Sb 444 Uns N06625 - China

U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Technical Delivery Conditions (TDC) E-2670-ME-00-TDC-0258 (SB-444 UNS N06625) U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Specification for Seamless Nickel and Nickel Alloy Condenser and Heat-Exchanger tubes SB-23 / SB-23M ASME Section II Part B Ed.

65 U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Markings/Test report AS per SB-829/SB-829M U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Tolerances As per SB-444/SB-444M 1 - U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 General requirement, 1.1 Wall thickness shall be as specified in PR or PO (i.e. minimum ) after construction.

1.2 All Tube material shall be free of rust, dirt, pits, gouges, and crevices.

1.3 Product Analysis shall be reported in MTC.

1.4 Each tube shall be formed from a single length without circumferential welds.

1.5 All tubes shall be in the annealed condition.

2 - U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Non-destructive Testing, 2.1 All tubes shall be subjected to Eddy current testing as per ASTM E 571 & Annexture-I.

2.2 Visual inspection of the U-bends after the bending in order to verify that there are no flaws such as folds, shrinks, friction signs or material tears, or flattening.

3 - U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Marking and Certification, 3.1 Material marking fluid shall be compatible with Inconel steel, e.g. they shall not contain chlorides, zinc, sulfur, or other detrimental components.

3.2 Markings shall be protected from erosion, wear, or other events that may render them unreadable.

3.3 Material test reports shall be submitted conforming to mandatory certification requirements as per material specification and this TDC.

3.4 Material certificate shall contain all the data relating to the condition of supply, tests, and examinations.

4 - U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Additional Clients General Requirement, 4.1 The country of origin for items (finished product) and the raw materials from which the items are formed shall be traceable from the certification and/or marking.

5 - U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Tolerances 5.1 Tube wall thinning in the bends shall not exceed a nominal 3% of the original tube wall thickness.

5.2 Flattening at the bends shall not exceed 10% nominal OD of straight portion tube for U-tubes.

5.3 Mock-up result shall be checked at minimum bend radius (0, 30, 60, 90 Deg) for thinning and flattening.

6 - U-bend Type Seamless tubes SB-444 / SB-444M UNS N06625 Grade 1 Heat Treatment for U-bend portion, 6.1 After bending all tubes shall be subjected to heat treatment at 871˚C min.

followed by rapid cooling.

6.2 Heat treatment shall be completed by electric resistance or furnace methods.

Open Flame heat treatment is not permitted.

6.3 For electric resistance or induction heating, the heat-treated portion of the U-bend shall extend at least 300 mm beyond the tangent point.

For furnace heating, the heat treatment shall extend at least 600 mm beyond the tangent point.

6.4 After heat treatment all tubes shall receive a descaling treatment.

All mill scales will be removed.

6.5 During treatment mentioned in Clause 6.1, the Inside surface of the tube shall be protected by an inert gas atmosphere.

Company Contact:

• Posted By: Shanghai T.S. Industrial Co.,Ltd

• Phone: 8615607960723

• Address: No.2, Lane 1588 Youyi Road, Shanghai , China

• Email:

• Website: https://www.lordfintube.com

• Business Description: Shanghai T.S. Industrial Co., Ltd focuses on Finned Tubes, Fin Tube, and Finned Pipe used in Heat Exchangers, Boiler Economizers, Coolers, and Heaters.
  
  We supply custom fin tubes and finned pipes in various material configurations that will increase the heat exchangers' heat transfer rate and reduce operating costs.
  
  With an advanced high-frequency resistance welding finned tube production line, an annual production capacity of up to 4000 tons, the specifications of phi 22-273mm finned tube, according to national standards or customer requirements standard production.
  
  The company produces finned tubes (square fin tube, circular finned tube, spiral fin tube, H type finned tube, longitudinal fin tube, corrugated fin tube, spiral serrated fin tube, needle-shaped fin tube, plate-shaped fin tube, inner fin tube) that can be applied to the boiler, air preheater, etc.
  
  Fin tubes or called finned tubes are a major component for various heat recovery systems.
  
  The close connection between the Finning operation and the manufacturing plant allows significant savings in packaging and freight as well as working capital reduction as a result of a “just-in-time” supply chain.
  
  T.S. Industrial Supply and produce to custom requirement finned tubes.
  
  For high-frequency resistance welding finned tube.
  
  The fin, either solid or serrated, in carbon, alloy, or stainless steel is helically wound around the tube and resistance welded.
  
  For Extruded Finned Tube, the Base tube can be carbon steel, alloy Tube, and stainless steel, while the fin can be aluminum and copper alloy.
  
  Typical product, we also produce extruded serrated finned tubes.
  
  For Bending, We can be on the bare tube and also can be over the fin, is performed on-site with custom-designed duplex benders.
  
  In our typical finned tube supply range, we supply both extruded fin tubes and helical welded finned tubes, which are mainly used for the heat transfer industry.
  
  Specific types such as Embedded Fin Tube also called G Type Fin Tube, L Fin Tube, LL Finned Tube, KL Finned Type also call knurled Finned Tube, Extruded Fin Tubes, Extruded Serrated Fin Tube, Square Fin Pipe also call H Fin Tube, Rectangular Fin Pipes also called Double H Fin Tube, Longitudinal Finned Tubes, Studded Tube and Nailhead Pipe, High-Frequency Welded Serrated Fin Tube, High-Frequency Welded Solid Fin Tube.
  
  T.S. Industrial privately owned company and finned tube manufacturer.
  
  We are not owned by, nor do we own, any steel producers.
  
  Our independence from steel producers ensures that we are objective in matching exact customer needs in terms of quality, specifications, and delivery.
  
  T.
  
  S Industrial provides finned pipes products and services to the power plants, petrochemical industries, boiler & heat exchangers, nuclear stations, paper, shipbuilding sectors as well as refrigerating industries.
  
  Incorporated with manufacturers and fabricators in China, we can supply in accordance with most international standards with high-qualified and cost-effective products.
  
  Our main strength lies in the heat exchanger tubular, especially finned tubes, which can be long up to twenty meters, and usually delivered in U-bent form.
  
  We are confident that our expertise in this field will bring you high-value-added products & services, and we are ready anytime to team up with your finned tube solutions.