Calico Metal Alloys LLP is premier supplier and exporter of high-quality Duplex Steel UNS S32205 Pipes in India. With a commitment to excellence and customer satisfaction, we offer a comprehensive range of duplex steel pipes that are renowned for their exceptional strength, corrosion resistance, and durability. As a trusted name in the industry, we take pride in delivering top-notch products that meet the diverse needs of our clients across various sectors. Whether you require pipes for industrial applications, construction projects, or any other purpose, Calico Metal Alloys LLP is your one-stop destination for premium duplex steel pipes crafted to perfection.

What is Duplex Steel UNS S32205 Pipes?

Duplex Steel UNS S32205 Pipes refer to a type of duplex stainless steel pipes made from UNS S32205 grade material, also known as duplex 2205. These pipes exhibit a combination of excellent corrosion resistance and high strength, making them suitable for various demanding applications in industries such as chemical processing, oil and gas, and marine environments. They possess superior resistance to chloride stress corrosion cracking and have good weldability. Duplex Steel UNS S32205 Pipes are commonly used in piping systems where high strength and corrosion resistance are required.

Duplex Steel UNS S32205 Pipes

Manufacturing Process Of Duplex S32205 Pipes

Rolling and Welding

The strips pass through the number of rollers as per the required size. In the tubes-mill, the strip is gradually converted into the tubular shape. The fitted welding machine is then used to weld trim edges of the strip using TIG welding process.

Length Cutting

Rolled pipes and tubes thus manufactured are cut to the required lengths depending upon the industrial demand. We use a variety of methods—sawing, lathe cutting, rotary cutting, supported shear cutting, dual-blade shear cutting, and laser cutting.

Cleaning and Heating Phase

Subjected to cleaning to remove the dirt. Further, a heat treatment is given to these rolled pipes and tubes to remove the stresses that may occur due to welding and formation processes. Heat treatment is given on the continuously rolling hearth furnace.

Cold Drawing Process

Required size may not be obtained from the mill directly. Then, the cold operation process can be used to obtain the desired size. In the cold drawing process, the tube or pipe is drawn over the bench using Die plugs.

Finishing Process

Pipe and tubes are then subjected to cleaning, heat treatment, pickling and straightening. The computerized ink jet marking machine then mark the finished pipes or tubes. Then they marked with grade of material, size, heat number.

Advantages of Duplex Steel UNS S32205 Pipes

Duplex Steel UNS S32205 pipes offer several advantages due to their unique composition and properties:

Corrosion Resistance: Duplex steel UNS S32205 pipes exhibit excellent corrosion resistance, particularly in harsh environments such as those containing chloride ions, making them suitable for use in industries such as marine, chemical processing, and oil and gas.

High Strength: These pipes possess higher strength compared to conventional austenitic or ferritic stainless steels, allowing them to withstand high pressure and temperature conditions without deformation or failure.

Good Weldability: Duplex steel UNS S32205 pipes are known for their good weldability, which simplifies fabrication processes and allows for ease of assembly in various applications.

Cost-Effective: Despite their superior properties, duplex steel UNS S32205 pipes often offer a more cost-effective solution compared to other corrosion-resistant alloys, making them a preferred choice for many industrial applications.

Resistance to Stress Corrosion Cracking: The duplex structure of these pipes provides resistance to stress corrosion cracking, which is a common issue in chloride-rich environments, enhancing their reliability and longevity.

Versatility: Duplex steel UNS S32205 pipes find applications across a wide range of industries, including chemical processing, oil and gas, pulp and paper, desalination plants, and more, due to their combination of properties that cater to diverse needs.

Overall, the advantages of duplex steel UNS S32205 pipes make them a preferred choice for demanding applications where corrosion resistance, strength, and cost-effectiveness are critical factors.

Duplex Steel S32205 Pipes Specifications

Standard ASTM A789, A790
Outside Diameter 6-203mm
Wall Thickness 0.5-25mm
Length Up to 25m
Schedule SCH 5 to SCH XXS
Delivery Condition Pickled, Polished, Bright Annealed
Technique Seamless/Welded
Application Heat Exchanger, Heater, Condenser, Machining, Bearing Machining, API Service…
Package Woven bag, wooden case, or as per customer's requirement.
Quality Requirement Mill Test Certificate (EN 10204/3.1); Third Part Inspection is acceptable.

Types Of Duplex Stainless Steel S32205 Pipes


Duplex Steel S32205 Seamless Pipe


Duplex Steel S32205 Welded Pipe


Duplex Steel S32205 ERW Pipe


Duplex Steel S32205 EFW Pipe


Duplex Steel S32205 Square Pipe


Duplex Steel S32205 Round Pipe


Other Types Of Duplex Steel S32205 Pipes

DSS S32205 Pipes Duplex Steel S32205 Welded Pipe
Duplex Steel S32205 Thick Wall Pipe Duplex Steel S32205 Industrial Pipes
UNS S32205 Seamless Pipe UNS S32205 Duplex Steel Seamless Pipes
S32205 Duplex Stainless Steel Pipes UNS S32205 Pipe
S32205 Duplex Stainless Steel EFW Pipe Duplex Stainless Steel S32205 ERW Pipe
DSS S32205 Square Pipe Duplex Steel S32205 Rectangular Pipes
ASME SA790 Duplex Steel S32205 Pipe ASTM A790 Duplex Steel S32205 Pipes
Duplex Steel S32205 Polished Pipes Duplex Steel S32205 Cold Drawn Pipe
Duplex Steel S32205 Schedule 40 Pipe S32205 Duplex Stainless Steel Pipe

Duplex Steel UNS S32205 Pipes Equivalent Grade

The Duplex Steel UNS S32205 pipes are equivalent to ASTM A790/A789, ASME SA790/SA789 standards. They offer high resistance to corrosion and are suitable for applications in harsh environments, such as chemical processing, offshore drilling, and marine engineering. These pipes exhibit excellent mechanical properties and are characterized by their dual-phase microstructure, combining austenitic and ferritic phases. They are widely used in various industries for their superior performance and durability.

Duplex S32205 1.4462 S32205

Duplex Steel UNS S32205 Pipes Chemical Composition

Duplex Steel UNS S32205 pipes typically consist of a chemical composition that combines elements such as chromium, molybdenum, nickel, and nitrogen. Specifically, they commonly contain around 22% chromium, 3% molybdenum, and 5-6% nickel, offering excellent corrosion resistance in various environments. The addition of nitrogen enhances their strength and promotes austenite formation, contributing to superior mechanical properties. This composition makes UNS S32205 pipes ideal for applications requiring resistance to corrosion, high strength, and good weldability.

Grade C Mn Si P S Cr Mo Ni N Fe
S32205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.50 - 3.50 4.50 – 6.50 0.8 – 0.20 63.54 min

Duplex Steel UNS S32205 Pipes Mechanical Properties

UNS S32205 is a duplex stainless steel known for its excellent corrosion resistance and high strength. Its mechanical properties include a minimum tensile strength of 620 MPa, a minimum yield strength of 450 MPa, and a minimum elongation of 25%. This steel exhibits good toughness and impact strength even at low temperatures, making it suitable for various industrial applications, especially in aggressive environments where corrosion resistance is crucial.

Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S32205 7.805 0.285 1420 – 1465 2588 – 2669

Applications of Duplex Steel UNS S32205 Pipes

Duplex Steel UNS S32205 pipes have several applications across various industries due to their unique properties. Here are some of the common applications:

Oil and Gas Industry: Duplex steel pipes are widely used in the oil and gas industry for transporting corrosive fluids, especially in offshore and subsea environments where corrosion resistance and strength are critical.

Chemical Processing: These pipes are used in chemical processing plants where they come in contact with aggressive chemicals. Their resistance to corrosion and high strength make them suitable for such applications.

Desalination Plants: Duplex steel pipes are utilized in desalination plants where seawater is processed to produce potable water. The corrosion resistance of duplex steel is crucial in such saline environments.

Pulp and Paper Industry: In the pulp and paper industry, duplex steel pipes are used in various stages of production where resistance to corrosion from chemicals used in the process is necessary.

Water Treatment: Duplex steel pipes are employed in water treatment facilities where they are exposed to corrosive elements. Their resistance to corrosion and erosion makes them ideal for conveying treated water.

Marine Applications: Due to their resistance to corrosion in seawater, duplex steel pipes are extensively used in marine applications such as shipbuilding, offshore platforms, and marine engineering.

Heat Exchangers: Duplex steel pipes are utilized in heat exchangers where they need to withstand high temperatures and aggressive environments.

Overall, Duplex Steel UNS S32205 pipes are preferred in applications where a combination of high strength, corrosion resistance, and durability is required, especially in challenging environments.

Electrical Industry


Automotive Industry


Construction Industry


Defence Industry


Pharmaceutical Industry


Petroleum Industry


Petrochemical Industry


Milk & Dairy Industry

Milk & Dairy

Export & Supply Destinations Of Duplex S32205 Pipes

Switzerland, Germany, Ukraine, Liechtenstein, Bulgaria, Turkey, Belarus, Greece, Belgium, Estonia, Latvia, Ireland, France, Moldova, Spain, Poland, Austria, Monaco, Malta, Luxembourg, Lithuania, Italy, Cyprus, United Kingdom, Hungary, Portugal, Norway, Romania, Finland, Netherlands, Slovakia, Serbia, Czechia/Czech Republic, Azerbaijan, Croatia, Russia, Sweden, Denmark.

Malaysia, Iraq, Bahrain, South Korea, Lebanon, Macau, Afghanistan, Oman, North Korea, Saudi Arabia, Turkey, Thailand, Azerbaijan, India, Bangladesh, Taiwan, Philippines, Mongolia, Nepal, Indonesia, British, Bhutan, United Arab Emirates, Singapore, Iran, Vietnam, Israel, Sri Lanka, Jordan, Russia, Myanmar, Kuwait, Armenia, Egypt, Qatar, China, Japan, Hong Kong, Maldives, Kyrgyzstan.

Kenya, Namibia, Mauritania, Mozambique, Ethiopia, Madagascar, Zimbabwe, Seychelles, Central African Republic, Angola, Rwanda, Zambia, Botswana, Burundi, Libya, Morocco, Senegal, Mauritius, Nigeria, Liberia, Eswatini, Gambia, Algeria, South Africa, Tunisia, Niger, Egypt, Cameroon, Uganda, Tanzania, Burkina Faso.

Haiti, El Salvador, Saint Lucia, Mexico, Canada, Belize, Trinidad and Tobago, Guatemala, Saint Vincent and the Grenadines, Costa Rica, Antigua and Barbuda, Dominican Republic, Honduras, Bahamas, Panama, Grenada, Cuba, Dominica, Jamaica, United States of America, Barbados, Nicaragua.

Argentina, Ecuador, Brazil, Paraguay, Chile, Bolivia, Venezuela, Uruguay, Colombia, Suriname, Peru, Guyana.