Kiah Metallurgical Indian Exporters is a renowned manufacturer, supplier, and exporter of Duplex S31803 Round Bars, which have a higher corrosion resistance compared to austenite steels. With our manufacturing capability, we also offer fabrications and part-machined or finish-machined products such as Duplex S31803 Barsto the client’s specification. These Duplex S31803 Rods are not generally suitable for use at temperatures above 300 Degree C as it suffers from precipitation neither of brittle micro constituents nor below -50 Degree C because of their ductile-to-brittle-transition. This combination of properties of Duplex S31803 Bright Bars can mean some compromise when compared with pure austenitic and pure Ferritic grades. These Duplex S31803 Flat Bars have high resistance to corrosion fatigue and erosion. Duplex S31803 Square Bars have higher strength which is around twice that of Type 304 austenitic stainless steel.



Duplex Steel UNS S31803 F51 Round Bars

These Duplex S31803 Threaded Bars cannot be hardened by heat treatment but stronger surface strengths can be achieved by cold working. Duplex S31803 Hollow Bars are used for chemical processing, transport, and storage – pressure vessels, tanks, piping, and heat exchangers. The Duplex S31803 Hexagonal Bars are duplex stainless steel designed to enable combining improved resistance to pitting, high strength, stress corrosion, crevice corrosion and cracking. In the annealed condition, Duplex S31803 Triangular Bars contain approximately 40 % – 50 % ferrite. The oxidation resistance of these Duplex Stainless Steel UNS S31803 Round Bars is good at high temperature.


F51 Duplex Steel UNS S31803 Bars Specification

  • Standard ASTM A276, A479 / ASME SA276, SA479
  • Specification ASTM, ASME, and API
  • Size 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length.
  • Length 3 to 6 meter, Custom Cut Lengths
  • Finishing Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
  • Form Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging Etc.,
  • Condition Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
  • Other Services Machining (CNC), Centreless Grinding (CG), Heat Treatment, Annealing, Pickling, polishing, Rolling, Forging, Cutting, Bending, Minor Fabrication




UNS S31803 Duplex Steel Round Bar Equivalent Indian Standard




Duplex 2205




ASTM A276 Duplex 2205 Cold Drawn Round Bar Chemical Composition













0.030 max

2.00 max

1.00 max

0.030 max

0.020 max

22.0 – 23.0

3.0 – 3.5

4.50 – 6.50

0.14 – 0.20

63.72 min


ASME SA276 Duplex Steel UNS S31803 Hot-Rolled Round Bars Mechanical Properties



Melting Point

Tensile Strength

Yield Strength (0.2%Offset)



7.8 g/cm3

1350 °C (2460 °F)

Psi – 116000, MPa – 800

Psi – 80000, MPa – 550

15 %


Other Types of Duplex Stainless Steel F51 S31803 Round Bars & Rods


Kiah Metallurgical Indian Exporters are Suppliers and Exporters of Duplex S31803 Stainless Steel Round Bars in Cities Like

Navi Mumbai, Chandigarh, Vadodara, Lahore, Sharjah, Kuwait City, Houston, Jeddah, Kuala Lumpur, Milan, Tehran, Los Angeles, Hong Kong, Istanbul, Vung Tau, Moscow, Dammam, Ulsan, Coimbatore, Thiruvananthapuram, Ahmedabad, Ludhiana, Dallas, Ahvaz, Toronto, Melbourne, New Delhi, Ernakulam, Kolkata, Karachi, Petaling Jaya, Colombo, Manama, Indore, Sydney, Perth, Nagpur, Baroda, Visakhapatnam, Montreal, Al Jubail, Al Khobar, Granada, Mexico City, Calgary, Muscat, Kanpur, Madrid, Rajkot, Haryana, New York, Lagos, Port-of-Spain, Courbevoie, Pune, Bengaluru, Howrah, Dubai, Seoul, Geoje-si, Algiers, Cairo, Ho Chi Minh City, Bangkok, Atyrau, Gimhae-si, London, Ankara, Rio de Janeiro, Hyderabad, Jamshedpur, Hanoi, Bhopal, Secunderabad, Bogota, Aberdeen, Ranchi, Mumbai, Noida, Surat, Abu Dhabi, Chiyoda, Riyadh, Brisbane, Busan, Edmonton, Chennai, Santiago, Nashik, Doha, Thane, Jaipur, Singapore, Jakarta, Pimpri-Chinchwad, Faridabad, La Victoria, Gurgaon, Caracas.


Kiah Metallurgical Indian Exporters are Suppliers and Exporters of Duplex UNS S31803 Round Bars in Countries Like

Turkey, South Korea, Afghanistan, Poland, Estonia, Chile, Lebanon, Bhutan, Bulgaria, United States, Romania, Ghana, Oman, Gabon, Zimbabwe, Iraq, Tibet, Argentina, Namibia, Iran, Japan, Colombia, Netherlands, Finland, Ecuador, Saudi Arabia, Ukraine, Venezuela, Indonesia, Poland, United Kingdom, Norway, Mexico, Kuwait, Spain, Qatar, China, United Arab Emirates, Belgium, France, Algeria, Mexico, Belarus, Thailand, Singapore, Switzerland, Puerto Rico, Pakistan, Sri Lanka, Philippines, Bahrain, Australia, Nigeria, Russia, Yemen, Costa Rica, Germany, Azerbaijan, Czech Republic, Peru, Hungary, Mongolia, Nigeria, Ireland, Nepal, Iran, Taiwan, Lithuania, Angola, Gambia, Kenya, Chile, Sweden, Denmark, Kazakhstan, Italy, Portugal, Trinidad & Tobago,Tunisia, New Zealand, India, Israel, Malaysia, Morocco, Serbia, Hong Kong, Bolivia, Canada, Brazil, Croatia, South Africa, Egypt, Jordan, Macau, Slovakia, Libya, Greece, Vietnam, Bangladesh, Austria.

Kiah Metallurgical is an ISO 9001-2015 certified steel exporters
Kiah Metallurgical is an ISO 45001-2018 certified steel exporters
Kiah Metallurgical is an ISO 14001-2015 certified steel exporters
Kiah Metallurgical is a CE Compliant certified steel exporter

Stainless Commitment & Metallic Strength in our Services

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