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Amco metals are one of the largest distributor and manufacturer of DUPLEX ROUND BARS (2205/31803), these bars are known for its unmatched strength. These bars offer great corrosion, which makes it ideal for the environment. The duplex round bars tendency to resist buckling and crushing in the application of impact forces. It formability property makes it best for constructing complex designs with low machining costs. It opposes any stress and pitting cracks on the surface of bars. It has the prominent feature of bearing high temperatures with minimum deformation, makes it faultless for heating industries. It offers high-quality surface finish for remarkable performances for engineering works.

DUPLEX ROUND BARS (2205/31803) are manufactured by metal forging process so that it acquires blowholes free structure. These are treated by numerous heat treatment processes for extra hardening. Bars are tested by flattering, flaring, radiographic test, positive material test, intergranular corrosion tests. Finish by matte, BA, hairline and bright black polish. UNS S31803/ S32205 are the material grades of given bars. Length ranges from 1 to 6 meter and diameters are processed as per patrons. ASME SA- 182, SA- 240, SA- 786, SA- 790, SA- 815, ASTM A 182, A 240, A 276, A 479 are some of standards of bars

Amco metals only use high-quality raw materials for processing DUPLEX ROUND BARS (2205/31803). These bars are packed in wooden box and plastic wrap. Amco metals provide bars at cheap rates; you can consider these bars for engineering and industrial purpose.

Our 100% durability and complete customization makes our product line highly demanded.

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Duplex Steel 2205 Round Bar
Duplex Steel 2205 Round Bar
Duplex Steel 2205 Round Bar
Duplex Steel S31803 Round Bar
Duplex Steel S31803 Round Bar
Duplex Steel S31803 Round Bar
Duplex Steel Round Bar
Duplex Steel Round Bar
Duplex Steel Round Bar

Duplex S31803 & 2205 Round Bar Specifications

Specifications : ASTM A276 / ASME SA 276, ASTM A479 / ASME SA 479

Standard : ASTM, ASME

Size : 6 mm to 120 mm.

Length : 1 to 6 Meters, Custom Cut Lengths

Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI

Duplex Steel Round Bars Equivalent Grade

Duplex S31803/2205 1.4462 S31803 / 2205


Duplex Steel Round Bars Chemical Composition

Grade C Mn Si P S Cr Mo Ni N Fe
Duplex S31803 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
Duplex 2205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.5 – 3.5 4.50 – 6.50 0.8 – 0.20 63.54 min


Applications Industry
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals


Our Main Export Countries

  •   ASIA - Thailand, Singapore, Sri lanka, Bangladesh
  •   Middle East - Kuwait, Dubai, Saudi Arabia, Qatar, Oman, Bahrain, Jordan
  •   Europe - United Kingdom, Italy, Belgium, France, Croatia, Spain
  •   South America - Argentina, Chile, Brazil, Colombia, Paraguay
  •   Africa - Ghana, South Africa


Other Types Of Duplex Steel Round Bar
Duplex Steel 2205 Round Bar Duplex Steel S31803 Round Bar
Duplex Rods Duplex Steel Werkstoff Nr. 1.4462 Round Bar
ASTM A276 Duplex Steel Round Bar UNS S31803 Duplex Steel Round Bar
S31803 Duplex Steel Bars Duplex Steel Bright Bars
Duplex Steel S31803 Round Bar Duplex Steel Bars Exporter
Duplex S31803 Round Bar Application Industries UNS S31803 Duplex Steel Square Bar
Hot Rolled Duplex Steel 2205 Round Bar S31803 Duplex Steel Rectangular Bar
2205 Duplex Triangular Barr ASTM A276 Duplex Steel 2205 Threaded Bar


Countries we have exported our products to:

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


Cities we have supplied our products to:

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