What is Duplex 2205 Fasteners ?

Duplex 2205 Fasteners are made up of an alloy with a higher content of chromium and either low or a moderate amount of nickel. This alloy is characterized by balanced austenitic as well as ferritic characteristics. The chromium content in this alloy allows them to be strong and gives them an excellent tensile strength.

The Duplex 2205 Fasteners are less likely to get damaged because of their tensile nature. The austenitic part gives them strength, whereas the ferritic nature gives them toughness. These fasteners help to reduce the overall weight of the structure to be manufactured, and hence this in turn also reduces the price of the structure, making these fasteners cost-friendly.



Sumit Impex focuses on manufacturing excellent quality Duplex 2205 Fasteners. These fasteners work very well in chlorine-bound environments and are resistant to corrosion-related corrosion pitting and corrosion cracking. As these fasteners are lighter in weight, they can be used in a large number of applications; however, this does not reduce the overall performance that these fasteners could possibly offer.

These fasteners work even more efficiently than the other austenitic stainless steel fasteners. The chemical composition of this alloy consists of chromium and nickel along with nitrogen and molybdenum. This combination helps to improve the mechanical strength of the fasteners. These fasteners could withstand a temperature up to 300 degrees celsius. However, if the temperature exceeds this particular limit, it may lead to the embrittlement of the fasteners.

Duplex 2205 Fasteners Specifications

Grade Duplex 2205 Fasteners
Specification ASTM A 193 ASME SA 193
Standard  DIN, ASTM, BS and all International Standards
Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length 3 mm to 200 mm
Form Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts.
Application Most commonly used in petroleum refineries, Boilers, Heat exchangers, Condensers, Pipelines, Cooling towers, Steam exhausts, Electric generation plants, On occasion will be found in fertilizer and chemical plants.
Duplex S32205 S32205 1.4462
S32205 C N P Si Mn Mo Fe Cr S Ni
1.0 0.03 0.02 2.0 3.0 – 3.5 22.0 – 23.0 0.03 4.5 – 6.5 0.14 – 0.2 Bal
S32205 Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 80000 , MPa – 550 Psi – 116000 , MPa – 800 15 %
Norminal Size Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min
3/8 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320
1/2 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427
5/8 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535
3/4 1-1/18 1.125 1.088 1.299 1.240 41/64 0.665 0.617
7/8 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724
1 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831
1-1/8 1-11/16 1.688 1.631 1.949 1.859 31/32 0.999 0.939
1-1/4 1-7/8 1.875 1.812 2.165 2.066 1-1/16 0.094 0.030
1-3/8 2-1/16 2.062 1.994 2.382 2.273 1-11/64 0.206 0.138
1-1/2 2-1/4 2.250 2.175 2.598 2.480 1-9/32 0.317 0.245

Other Products

Duplex S32205 Hex Head Nut Duplex S31803 / S32205 Hex Head Nut
Duplex S31803 / S32205 Square Nut Duplex S31803 / S32205 Square Nut
Duplex S32205 Lock Nut Duplex S31803 / S32205 Lock Nut

Duplex S32205 Eye Nut Duplex S31803 / S32205 Eye Nut
Duplex S32205 wing Nut Duplex S31803 / S32205 wing Nut
Duplex S32205 wing Nut Duplex S31803 / S32205 wing Nut

Duplex 2205 Fasteners Price List

  • S31803 / S32205 Duplex Bolt/Nut
    US $2500-S31803 / S322050 / Ton (FOB Price)
  • Bolt/Nut astm A193 S31803 / S32205
    US $S31803 / S32205-1200 / Ton (FOB Price)
  • Duplex Bolt/Nut S31803 / S32205
    US $500-2000 / Ton (FOB Price)
  • ASTM A193 S31803 / S32205 Duplex Bolt/Nut
    US $850-2200 / Metric Ton (FOB Price)
  • sA193 S31803 / S32205 Bolt/Nut
    US $1.5-9 / Kilogram (FOB Price)
  • S31803 / S32205 Bolt/Nut manufacturer
    US $850-2200 / Metric Ton (FOB Price)
  • ASTM A193 Gr. S31803 / S32205 Bolt/Nut
    US $500-1000 / Ton (FOB Price)


We Sumit Impex Metal Ensure the best quality of Packing , because its play important role especially in a case of international shipments in which consignment pass through various channels to reach the ultimate destination, so we put extraordinary concern regarding packaging.

We pack our goods in numerous ways based on the products. We pack our products in multiple ways, such as,

  • Boxes and Crates
  • Shrink-wrapped
  • Carton boxes
  • Wooden pallets
  • Wooden boxes
  • Wooden crates

Testings (Destructive, Non Destructive)

  • Mechanical Testing Such as Tensile, Elongation, Reduction of Area
  • Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
  • Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
  • Positive Material Identification – PMI Testing
  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Pitting Resistance Test
  • Dye Penetrant Test (DP Test)
  • Micro Test
  • Macro Test
  • Hardness Test
  • Flaring Test
  • Flattening Test
  • Hydrostatic Test
  • Radiography Test
  • Ultra Sonic Test (UT)
  • Eddy Current Testing
  • Impact Test
  • Bend Test

Application Industries

These material are not a single material but the name for a family of corrosion resistant steels. Like many scientific breakthrough the origins of stainless steel lies in a lucky accident. From the smallest part of zipper to the largest building skyscraper, stainless steel is an essential part of modern life.Stainless steel’s strength, resistance to corrosion and low maintenance make it the ideal material for a wide range of applications. It is also has a long life cycle and is 100% recyclable.

  • Construction
  • Bridges
  • Petrochemical Industry
  • Ship Building
  • Engineering
  • General Structural Purposes
  • Offshore and Onshore Services

Stainless Steel Sheet Manufacturers

Country we serve / City we deliver

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

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

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