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ASTM A/SA 789 UNS S31803 Duplex Steel Seamless Tubes

ASTM A789 Duplex Steel UNS S31803 Tube Manufacturer, Duplex Steel UNS S31803 Welded Tubes, Duplex Steel Seamless Tubes, Duplex EFW Tubes Suppliers In India

KOBSINDIA are Manufacturer, Supplier and Exporter of Duplex Steel UNS S31803 Tubes and Tubes. All the offered products are designed and manufactured using quality material. These are known for high durability, dimensional accuracy, and fine finish. Our highly sophisticated manufacturing unit enables us to produce Duplex Steel Tubes & Tubes that are in sync with the international standards.

We understand you are looking for ASTM A789 Duplex Steel UNS S31803 Tube, we are specialized in ASTM A789 Duplex Steel UNS S31803 Tube since 1975. Offer unbeatable prices incorporating large discounts against a range of Duplex Steel UNS S31803 Seamless Tubes, Duplex UNS S31803 SCH 40 Tubes, Duplex UNS S31803 SCH 80 Tubes, Duplex UNS S31803 rectangular steel tubing/ Solar Tubes, Duplex Steel UNS S31803 Tuburia, Tubular Products in India

KOBSINDIA is manufacturer, stockist & supplier the highest quality corrosion and temperature resistant ASTM A789 Duplex Steel UNS S31803 Tube. KOBSINDIA is PED approved manufacturer & Govt. of India recognized Export House and an ISO 9001 : 2008, 18001:2007, 14001:2004 accredited company. We supply precision smooth bore duplex steel UNS S31803 Tubes/ tubing for marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications.

KOBSINDIA ensure highest quality Duplex Steel UNS S31803 seamless Tubes for use in extreme environments. We are focused on meeting both your materials and supplier relationship needs. Our Duplex Steel UNS S31803 Welded Tubes/ Tubing made from cold formed stainless steel have a smooth finish and strong mechanical traits, as well as closer tolerances than hot formed coil-based welded Tubes.

Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.

The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance). Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F. Extended elevated temperature exposure can embrittle 2205 stainless.


Type : Welded, Erw, Seamless, Efw, Saw, Square, Rectangle, Oval, Triangular,   Rectangular Pipe, Fabricated Pipe.
Material Grades : ASTM A789, ASTM/ASME A815 UNS S31803
Schedule : SCH20, SCH30, SCH40, STD, SCH80

KOBSINDIA exports Duplex Steel Seamless Pipes to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

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