Duplex 2205 Tube | Duplex 2205 Tubings | ASTM A789 UNS S31803 | ASTM A789 UNS S32205

Duplex 2205 Tube | Duplex 2205 Seamless Tube | Duplex 2205 ERW Tube | Duplex 2205 Welded Tube | Duplex 2205 EFW Tube | Duplex 2205 Round Tube | Duplex 2205 Square Tube | Duplex 2205 Rectangle Tube | ASTM A790 UNS S32760 Tube

An ISO 9001:2008 certified company, Oshwin Overseas is a leading Manufacturer, Supplier, and Exporter of high-quality Duplex 2205 Tube with ASTM A789 / ASME SA789. Duplex 2205 Tubing are available in all types and forms like Duplex 2205 Seamless Tube and Duplex 2205 Welded Tube in OD and NB sizes. In addition to standard tube sizes, we are specialized in manufacturing, supplying and exporting custom tube sizes of Duplex Steel Tube cold drawn Duplex 2205 Seamless Tube and Duplex 2205 Welded Tube from our Factory. Typical uses of Duplex 2205 Tubing are in oil and gas equipment, offshore technology, seawater desalination plants, chemical industry, flue-gas cleaning, desalination plants and seawater systems and pulp and paper industry. Oshwin Overseas provides a whole range of high-class, customizable and innovative ASTM A789 Duplex 2205 Seamless Tube and Duplex 2205 Welded Tube using state-of-art technology.

Oshwin Overseas has been serving the needs of the oil and gas industries, automotive, shipbuilding, power plants, for more than 2 decades. We have supplied Duplex 2205 Tubing ASTM A789 Seamless Tube and Welded Tube to Petrochemical Plants, Nuclear Power Projects, Oil & Gas Industries. Oshwin Overseas have been supplying high-quality UNS S32205 and UNS S31803 ASTM A789 / ASME SA789 with most advanced technology and with most reliable quality. All Duplex Tube (SA789 UNS S31803) are offered with a NACE 3.1 Certification, Mill Test Certification, and ISO 17025 Standards by a Government of India approved Laboratory. Positive Material Identification is done on all raw materials procured at Oshwin Overseas. Oshwin Overseas also offer a range of allied services including Cutting, Welding, Electro Polishing, Shot-Blasting and more.

Oshwin Overseas deals in  Duplex Tube, Duplex 2205 Tube, Duplex Steel Tube, Duplex S31803 Tube, Duplex S32205 Tube, Duplex Seamless Tube, Duplex 2205 Seamless Tube, Duplex Steel Seamless Tube, Duplex S31803 Seamless Tube, Duplex S32205 Seamless Tube, Duplex Welded Tube, Duplex 2205 Welded Tube, Duplex Steel Welded Tube, Duplex S31803 Welded Tube, Duplex S32205 Welded Tube, Duplex Round Tube, Duplex 2205 Round Tube, Duplex Steel Round Tube, Duplex S31803 Round Tube, Duplex S32205 Round Tube, Duplex Square Tube, Duplex 2205 Square Tube, Duplex Steel Square Tube, Duplex S31803 Square Tube, Duplex S32205 Square Tube, Duplex Rectangle Tube, Duplex 2205 Rectangle Tube, Duplex Steel Rectangle Tube, Duplex S31803 Rectangle Tube, Duplex S32205 Rectangle Tube.

Duplex 2205 Tube Specification

Standard / Specifications : ASTM A789 / ASME SA789 (A789 UNS S31803 / SA 789 S31803 / ASTM A789 S31803 / SA 789 UNS S31803).

Grades : EN 1.4462 / UNS S31803 (F51) / UNS S32205 (F60).

Types of Tube : Duplex 2205 Seamless Tube  / Duplex 2205 Welded Tube / Duplex 2205 Fabricated Tube / Duplex 2205 ERW Tube/ Duplex 2205 EFW Tube.

Forms of Tube: Round Tube, Square Tube, Rectangle Tube.

Standard Stainless Steel Tube Sizes: 1/8” to 48”, Seamless Tube up to 24”.

Wall Thickness: 0.08mm – 1.5 mm.

Outer Diameter : 0.3mm – 10mm.

Thickness : 0.4mm up to 30.00 mm, Schedules 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXS.

Hardness: Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.

Surface Finishing: Bright, Polish & Black.

Our Duplex 2205 Tubing conforms to NACE MR0175/ISO 15156.

Types of Duplex 2205 Tube

Duplex S32750 Seamless Pipe

Duplex 2205 Seamless Tube

Duplex 2205 Seamless Tube is made from a solid round steel ‘billet’ which is heated and pushed or pulled over a form until the steel is shaped into a hollow tube. Duplex 2205 Seamless Tube don’t have a weld seam.  In Duplex 2205 Seamless Tube, there are no welding or joints and is manufactured from solid round billets.  Seamless Tube is manufactured by extruding the metal to the desired length and does not have any joint in its cross-section throughout its length.

The seamless Tube is finished to dimensional and wall thickness specifications in sizes from 1/8 inch to 26 inch OD. Oshwin Overaeas is one of the leading Duplex 2205 seamless Tube manufacturers in India. We are specialized in Seamless Tube manufacturing.  Seamless Tube has better ovality or roundness than the welded Tube.

Duplex S32750 Welded Pipe

Duplex 2205 Welded Tube

Duplex 2205 Welded Tube is typically more cost-effective than their seamless equivalents. Duplex 2205 Welded Tube is usually more readily available than seamless. The longer lead time required for the seamless Tube can not only make timing problematic, but it also allows more time for the price of the materials to fluctuate. The wall thickness of Duplex 2205 welded Tube is generally more consistent than that of Seamless Tube.

Duplex 2205 Welded Tube is made of forming flat products (strip, sheet or plate) into the desired shape, in this case, normally round. Once the desired shape has been achieved, a high energy source is used to melt the metal locally at the weld joint. It is squeezed together and allowed to solidify, forming a weld bead.

Duplex S32750 ERW Pipe

Duplex 2205 ERW Tube (Electric Resistance Welding)

Duplex 2205 ERW Tube means Electric Resistance Welded Tube. Duplex 2205 ERW Tube is made from HR Coils. Electric Resistance Welding (ERW) Tube is manufactured by rolling metal and then welding it longitudinally across its length. A plate rolled to become a Tube and welded using Electric Resistance Welding process. Usually for high diameter. Duplex 2205 ERW Tube have a welded joint in its cross-section.

Duplex 2205 ERW Tube is welded longitudinally, manufactured from Strip / Coil and can be manufactured upto 24” OD. ERW  Tube and tubes are used for various engineering purposes, fencing, scaffolding, line Tube etc. ERW steel Tube and tube are available in various qualities, wall thicknesses, and diameters of the finished Tube.

Forms of Duplex 2205 Tube

GradeTypeUnified Numbering System (UNS)Forgings GradesWerkstoff-nr.EuronormAFNORDIN Standards
2205Standard DuplexS31803 / S32205F51 / F601.4462en 1.4462X2CrNiMoN22-5-3Z2.CND22.05.03din 1.4462
MaterialTube Specification
Duplex steel Tube TubingS32205/S31803ASTM A789 / ASME SA789
Duplex Steel Seamless Tube TubingASTM A789 UNS S32205, ASTM A789 UNS S31803
Duplex Steel Welded Tube TubingASTM A789 UNS S32205, ASTM A789 UNS S31803
Outside Diameter Thickness Range Type Form Length
O.D 5/8" to 5"
MM 0.6250 to 5.00
Gauge / SWG - 7 to 19
MM - 0.2615 to 9.266
Seamless / ERW / Welded / Fabricated / EFWPrecision Tubes, High Pressure tubes, Instrumentation tubes, Oil and Gas Tubes, Condenser Tubes, Chemical process tubes, Aerospace Tubes, Nuclear Fuel Tubes, Round Tubes, Square Tubes, Rectangular Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes, Heat Exchanger Tubes, Capillary TubesSingle Random, Double Random & Required Length End: Plain End, Beveled End, Threaded

Duplex 2205 Tube Suppliers | Duplex 2205 Tube Manufacturer | Duplex 2205 Tube Stockist | Duplex 2205 Exporter

Duplex 2205 Tube Suppliers in India, Duplex 2205 Tube Suppliers in UAE, Duplex 2205 Tube Suppliers in Abu Dhabi, Duplex 2205 Tube Suppliers in Dubai, Duplex 2205 Tube Suppliers in UK, Duplex 2205 Tube Suppliers in England, Duplex 2205 Tube Suppliers in London, Duplex 2205 Tube Suppliers in US, Duplex 2205 Tube Suppliers in California, Duplex 2205 Tube Suppliers in Texas, Duplex 2205 Tube Suppliers in New York, Duplex 2205 Tube Suppliers in Georgia, Duplex 2205 Tube Suppliers in New Jersey, Duplex 2205 Tube Suppliers in Australia, Duplex 2205 Tube Suppliers in Brazil, Duplex 2205 Tube Suppliers in Canada, Duplex 2205 Tube Suppliers in France, Duplex 2205 Tube Suppliers in Germany, Duplex 2205 Tube Suppliers in Greece, Duplex 2205 Tube Suppliers in Indonesia, Duplex 2205 Tube Suppliers in Italy, Duplex 2205 Tube Suppliers in Malaysia, Duplex 2205 Tube Suppliers in Netherland,Duplex 2205 Tube Suppliers in Philippines, Duplex 2205 Tube Suppliers in Russia, Duplex 2205 Tube Suppliers in Saudi Arabia, Duplex 2205 Tube Suppliers in Singapore, Duplex 2205 Tube Suppliers in South Africa, Duplex 2205 Tube Suppliers in South Korea, Duplex 2205 Tube Suppliers in Spain, Duplex 2205 Tube Suppliers in Sweden, Duplex 2205 Tube Suppliers in Thailand, DupTubelex 2205 Tube Suppliers in Ukraine.

Duplex 2205 Tube Suppliers, Duplex 2205 Tube Manufacturer, 2205 Duplex Stainless Steel Tube ·
Oshwin Overseas is one of the prominent Manufacturer, Supplier, and Exporter of Duplex 2205 Tube with ASTM A790 and UNS S31803 / UNS S32205. An ISO 9001:2008 Certified Company, Oshwin Overseas is a leading Duplex 2205 Tube Supplier and a well-known Duplex 2205 Tube Manufacturer. Oshwin Overseas offers high-quality Duplex 2205 Tube in various forms and sizes. Oshwin Overseas deals in all forms of Duplex 2205 Tube. Oshwin Overseas supplies Duplex 2205 Tube in all countries across the globe, as a warehouse to near to the airport and port for fast delivery. Oshwin Overseas deals in Duplex 2205 Tube at a competitive price. A rejection rate of less than one percent has consolidated the claim. The primary reason for this is the priority that we give to complete satisfaction of the customer. We supply and manufacture all forms of Duplex 2205 Tube and export it globally. Tubes manufactured by us are of high-quality duplex material and conform to international standards and specifications.
Brand: Oshwin Overseas
Manufacturer: Tubacex - Spain, Girnar Metals and Tubes - India, Sumitomo , Mustu Steel - Japan
Model: ASTM A789, ANSI B16.19 Tube Tubing
Product ID: OSH - 2205T
Characteristics of Duplex Stainless Steel 2205 Tubes
  • High Resistance to uniform corrosion.
  • High Resistance to pitting & crevice corrosion.
  • High Resistance to stress corrosion cracking & corrosion fatigue
  • High mechanical strength
  • High Resistance to abrasion & erosion
  • High Resistance to Fatigue
  • High energy absorption
  • Low thermal expansion
  • Good weld ability with care in thick sections
  • Useful up to 600°F
Applications of Duplex Stainless Steel 2205 Tubes
  • Chemical Processing Industry – Transport and Storage, pressure vessels, tanks, piping, and heat exchangers.
  • Oil and Gas exploration and processing equipment – piping, tubing, and heat exchangers
  • Marine Industry and Seawater systems – Cargo Tanks for Ships, High chloride environments,
  • FGD / Effluent Scrubber Systems.
  • Paper and Pulp Industry Digesters, Bleaching equipment and Stock-Handling Systems, Chip Pre-steaming vessels.
  • Food Processing Equipment.
  • Flue gas desulfurization / cleaning equipment
  • Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
  • Biofuels Plant, Desalination plants
  • Firewalls and blast walls on offshore platforms
ElementsCarbon (C)Chromium (Cr)Manganese (Mn)Molybdenum (Mo)Nickel (Ni)Nitrogen (N)Phosphorus (P)Silicon (Si)Sulphur (S)Iron / Ferrum (Fe)
UNS S322050.30 max22.0-
UNS S318030.30 max21.0-
Tensile Strength (Mpa) minYield Strength 0.2% Proof (Mpa) minElongation % (% in 50mm) Hardness (Brinell)Hardness Rockwell C
62144825 min293 max31 max
Density (Kg.m-1)7810
Magnetic Permeability<50
Young’s Modulus (N/mm2)190 x 10^3
Specific Heat, 20°C (J.Kg-1.°K-1)400
Specific Electrical Resistance, 20°C (µO.m)0.85
Thermal conductivity, 20°C15
Mean coefficient of thermal expansion11 x 10^-6

Looking for some more information ?

Get Best Quotes or Send us your Requirement


  • Commercial Invoice including HS Code
  • Packing List including number of boxes, net weight, gross weight, Marks & Numbers
  • Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
  • Material Test Certificates as per EN 10204 3.1, EN 10204 3.2
  • Test Certificates certifying NACE MR0103, NACE MR0175


  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177


The different ways in which our products are packed are:

  • Shrink-wrapped
  • Wooden Boxes
  • Wooden Pallets
  • Wooden Crates
  • Carton boxes


We mark Duplex 2205 as needed with the most suitable & visible marking techniques. Standard Marking System :-

  • Manufacturer’s Name or Trademark
  • Material Designation
  • Size Designation
  • Rating Designation
  • Melt Designation
  • Marking for Identification

Review Date
Reviewed Item
Duplex 2205 Tubing
Author Rating