Super Austenitic Stainless Steel Tube - China

Super-Austenitic Stainless Steel has a corrosion resistance higher than the duplex grades because its alloy content is higher.

It has a high PREN (pitting resistance equivalency number) for superior resistance to chloride pitting and stress corrosion cracking.

Grades：

N08904 (904L), N08367 (6Mo), S31254 (6Mo), S30432, S31042 Specifications：

- ASTM A312 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes

- ASTM A269 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service ASTM B673, ASTM B674, ASTM B677, ASTM B675, ASTM B676, ASTM B690 Features：

- Superior resistance to chloride pitting, and crevice corrosion in an aggressive environment

- Good mechanical properties with high yield strength

- Excellent machinability (Super) Duplex Stainless Steel

Duplex stainless steel (DSS) is featured a structure of two phases (α and γ) and has characteristics of both ferritic and austenitic stainless steel.

It has good corrosion resistance and high strength.

It is alloyed with 18%-28% Cr and 3%-10% Ni in the condition of low C.

Some steels also contain the alloy elements such as Mo, Cu, Nb, Ti, and N, etc.

Compared with ferritic stainless, duplex stainless steel has higher plasticity, ductility, and better intergranular corrosion resistance and weldability.

It keeps the same 475℃ brittleness with ferritic stainless and high thermal conductivity.

Duplex has improved yield strength, and resistance to intergranular corrosion, stress corrosion, corrosion fatigue, and abrasion & corrosion compared with austenitic stainless steel.

Grades: S31803/S32205, S32750, S32760, S31500, 32001, S32003, S32304 Specifications：

- ASTM A789 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service

- ASTM A790 (ASME SA790) Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Pipe

- ASTM A928 (ASME SA928) Standard Specification for Ferritic/Austenitic (Duplex) Stainless Steel Pipe Electric Fusion Welded with Addition of Filler Metal

- GB/T 21832-2008 Austenitic-Ferritic (duplex) grade stainless steel welded tubes and pipes

- GB/T 21833-2008 Austenitic-Ferritic (duplex) grade stainless steel seamless tubes and pipes Features：

- Superior resistance to general and local corrosion, especially to stress corrosion, pitting corrosion, crevice corrosion, corrosion fatigue, and abrasion & corrosion.

- Good weldability

- Good mechanical properties

- Excellent intergranular corrosion resistance

- High cost-effectiveness, long lifetime

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.