Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturer in India
Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturer in India
Sachiya Steel International is a trusted Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturer in India, established in 2005 and headquartered in Mumbai. With over 20 years of experience, we manufacture, supply and export industrial pipes and tubes to customers in 85+ countries. Our ISO 9001:2015, ISO 14001:2015, ISO 45001:2018 and applicable TÜV certifications reflect our focus on quality, safety and reliable product supply.
We serve EPC contractors, manufacturers, fabricators, distributors and engineering companies across various industries. Our product range includes stainless steel, duplex steel, super duplex steel, carbon steel, alloy steel and nickel alloy pipes and tubes. We follow applicable ASTM, ASME, ANSI, DIN and ISO standards, with inspection, testing and material documentation available as required. Our established manufacturing and sourcing capabilities help us handle standard orders, bulk supplies and large project requirements for customers worldwide.
What Are Duplex Stainless Steel UNS S32205 Pipes and Tubes?
Duplex Stainless Steel UNS S32205 Pipes and Tubes are made from a duplex stainless steel grade that combines austenitic and ferritic structures. This combination gives the material high strength and excellent resistance to corrosion, especially in environments containing chlorides. UNS S32205 is commonly known as Duplex 2205 and contains chromium, nickel, molybdenum and nitrogen to improve its mechanical properties and corrosion resistance.
These pipes and tubes are widely used in oil and gas, chemical processing, petrochemical, marine and offshore industries. They perform well in applications where equipment faces moisture, chemicals, chloride exposure and demanding operating conditions. Their high strength can also help reduce material thickness in suitable designs, while their resistance to stress corrosion cracking supports reliable service when the correct grade is selected for the application.
Duplex Stainless Steel UNS S32205 Pipes and Tubes
High-performance UNS S32205 duplex stainless steel pipes and tubes built for corrosive environments across offshore, petrochemical, marine and chemical processing industries. Supplied in different diameters, wall thicknesses, and specifications to match industrial project needs.
Types of Duplex Stainless Steel UNS S32205 Pipes and Tubes
As a Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturer, we offer different types of pipes and tubes to meet the needs of various industrial applications. These products are available in different sizes, wall thicknesses, finishes and manufacturing options to suit project specifications.
- Seamless Duplex Stainless Steel UNS S32205 Pipes: Manufactured without a welded seam, these pipes are suitable for high-pressure applications in oil and gas plants, refineries and chemical industries.
- Welded Duplex Stainless Steel UNS S32205 Pipes: Made by welding steel plates or strips, these pipes are used in industrial piping systems that require strength and corrosion resistance.
- Duplex Stainless Steel UNS S32205 Tubes: Suitable for heat exchangers, process equipment and fluid transfer systems.
- Cold-Drawn Duplex Stainless Steel UNS S32205 Tubes: Offer improved dimensional accuracy and a smooth surface finish for applications with precise requirements.
- Hot-Finished Duplex Stainless Steel UNS S32205 Pipes: Available for industrial applications that require specific dimensions and mechanical properties.
- Heavy-Wall Duplex Stainless Steel UNS S32205 Pipes: Used in piping systems that require greater wall thickness to meet design and pressure requirements.
- Polished Duplex Stainless Steel UNS S32205 Tubes: Feature a smooth surface finish for applications with specific surface quality requirements.
- Custom-Sized Duplex Stainless Steel UNS S32205 Pipes and Tubes: Available in different diameters, wall thicknesses and lengths according to project drawings and specifications.
The right pipe or tube type depends on operating pressure, temperature, corrosion exposure and installation requirements. Selecting the appropriate manufacturing process and dimensions helps ensure reliable performance in the intended application.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturers and Suppliers in India
Duplex Stainless Steel UNS S32205 Pipes and Tubes are a reliable choice for industries that need high strength and excellent corrosion resistance. Their duplex structure combines the benefits of austenitic and ferritic stainless steel, making them suitable for demanding environments where moisture, chemicals and chlorides can affect material performance. These properties help improve equipment reliability and support long-term use in industrial piping systems.
- High Mechanical Strength: Provides higher strength than many conventional austenitic stainless steel grades.
- Excellent Corrosion Resistance: Resists corrosion in many industrial environments, including those exposed to chlorides.
- Stress Corrosion Cracking Resistance: Offers good resistance to chloride-related stress corrosion cracking under suitable service conditions.
- Pitting and Crevice Corrosion Resistance: Helps protect surfaces from localized corrosion in demanding environments.
- Good Pressure Performance: Supports high-pressure piping applications when the design meets the required specifications.
- Long Service Life: Provides dependable performance when properly selected, installed and maintained.
- Cost Efficiency: High strength may allow thinner walls in suitable designs, helping reduce material use.
- Wide Industrial Applications: Suitable for oil and gas, chemical processing, petrochemical, marine and offshore industries.
These benefits make UNS S32205 a practical option for projects that require a balance of strength and corrosion resistance. The final material selection should consider operating temperature, pressure, chemical exposure and applicable design standards.
Types of Pipes & Tubes
Explore our range of industrial pipes and tubes, manufactured for different applications, materials, specifications and engineering requirements.
Pipes and Tubes
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Seamless Pipes
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ERW Pipes
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LSAW Pipes
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SSAW Pipes
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Seamless Tubes
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Welded Pipes
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Welded Tubes
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Box Pipes
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Box Tubes
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Brass Pipes
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Heat Exchanger Tubes
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Boiler Tubes
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Aluminium Pipes
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Carbon Steel Seamless Pipes
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Carbon Steel Pipe
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Stainless Steel Pipe
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Alloy Steel Pipe
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Duplex Steel Pipe
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Super Duplex Steel Pipe
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Nickel Alloy Pipe
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Copper Nickel Alloy Pipe
→Get Certified Duplex Stainless Steel UNS S32205 Pipes and Tubes at Competitive Factory Prices
Duplex Stainless Steel UNS S32205 Pipes and Tubes Specifications
| Item | Pipes | Tubes |
|---|---|---|
| Grade | UNS S32205 (2205) | UNS S32205 (2205) |
| Governing Standard | ASTM A790 / ASME SA790 | ASTM A789 / ASME SA789 |
| EN Number | 1.4462 | 1.4462 |
| Manufacture | Seamless, welded, EFW | Seamless, welded |
| Size | ½" to 24" NB; custom on request | By OD and wall as ordered |
| Wall | Sch 5S to XXS, or to drawing | As ordered |
| Length | Single random, double random, cut | Cut length, coils on request |
| Ends | Plain, beveled, threaded | Plain, deburred |
| Condition | Solution annealed and quenched | Solution annealed and quenched |
| Finish | Annealed and pickled | Annealed and pickled, or bright annealed |
| Certificate | EN 10204 3.1; 3.2 on request | EN 10204 3.1; 3.2 on request |
Duplex Stainless Steel UNS S32205 Pipes and Tubes Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 2.00 max |
| Silicon (Si) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulfur (S) | 0.020 max |
| Chromium (Cr) | 22.00 – 23.00 |
| Nickel (Ni) | 4.50 – 6.50 |
| Molybdenum (Mo) | 3.00 – 3.50 |
| Nitrogen (N) | 0.14 – 0.20 |
| Iron (Fe) | Balance |
Limits per ASTM A790 and A789 for UNS S32205. Minimum PREN from these limits is about 34.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Mechanical Properties
| Property | Requirement |
|---|---|
| Tensile Strength | 655 MPa (95 ksi) min |
| Yield Strength (0.2% offset) | 450 MPa (65 ksi) min |
| Elongation | 25% min |
| Hardness | 293 HBW / 31 HRC max |
| Density | approx. 7.80 g/cm³ |
| Elastic Modulus | approx. 200 GPa |
| Thermal Expansion (20–100 °C) | approx. 13.0 µm/m·°C |
| Thermal Conductivity (20 °C) | approx. 19 W/m·K |
| Magnetic Response | Magnetic, because of the ferrite phase |
Unlike austenitic grades, S32205 is magnetic, so a magnet test cannot be used to tell it from a mixed-up carbon steel pipe. Use positive material identification instead.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Standards
The two main documents are easy to mix up. ASTM A790 / ASME SA790 covers pipe, and ASTM A789 / ASME SA789 covers tube. Large fusion-welded pipe falls under ASTM A928. General requirements come from ASTM A999 for pipe and ASTM A1016 for tube. Pipe dimensions follow ASME B36.19M, and European projects can use EN 10216-5 for seamless and EN 10217-7 for welded products in 1.4462.
Oil and gas projects often add NORSOK or NACE MR0175 / ISO 15156 requirements on top. These usually set hardness limits, ferrite range and corrosion tests. Tell us at the enquiry stage if your specification includes them, so we can select a suitable heat.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Material and Grades
Duplex stainless steels come in three tiers. Lean duplex, such as 2101 and 2304, is the budget end. Standard duplex, 2205, is the workhorse. Super duplex, such as 2507, steps up for severe seawater and acidic chloride duty.
| Grade | Typical PREN | Min Yield (MPa) | Chloride Cracking Risk |
|---|---|---|---|
| 304 | about 19 | 205 | High |
| 316L | about 24 | 170 | Moderate to high |
| 2205 (S32205) | about 35 | 450 | Low |
| 2507 (S32750) | about 42 | 550 | Very low |
PREN is the pitting resistance equivalent number. It is worked out as chromium + 3.3 × molybdenum + 16 × nitrogen. Higher means better pitting resistance.
S32205 has more than twice the yield strength of 316L and a PREN about eleven points higher. In many designs, that allows a thinner wall, so the pipe weighs less even though the grade costs more per kilogram.
Duplex Stainless Steel UNS S32205 vs S31803: What to Write on Your Purchase Order
The two numbers describe nearly the same steel. S32205 simply narrows the allowed range for chromium, molybdenum and nitrogen, which gives a minimum tensile of 655 MPa against 620 MPa for S31803. S32205 melts sit inside the S31803 range, so one heat can meet both.
| Point | S31803 | S32205 |
|---|---|---|
| Chromium | 21.0 – 23.0% | 22.0 – 23.0% |
| Molybdenum | 2.5 – 3.5% | 3.0 – 3.5% |
| Nitrogen | 0.08 – 0.20% | 0.14 – 0.20% |
| Tensile (min) | 620 MPa | 655 MPa |
If your drawing says S32205, you need a pipe that meets the narrower window. If it says S31803, an S32205 pipe is also acceptable. If you are unsure, ask for dual certification. We can supply it whenever the heat meets both ranges.
Corrosion Resistance and Temperature Limits of Duplex Stainless Steel UNS S32205 Pipes and Tubes
In chloride service, S32205 resists pitting, crevice attack and stress corrosion cracking much better than 304 and 316L. In standard G48 testing, its critical pitting temperature is typically around 35 °C, compared with under 15 °C for 316L.
Temperature is where duplex stops. The usable window is narrower than for austenitic grades, and the damage is permanent.
| Temperature | What Happens |
|---|---|
| Below about −50 °C | Toughness falls; confirm impact testing |
| −50 °C to 300 °C | Normal service range |
| 300 °C to 525 °C | Ferrite slowly embrittles, known as 475 °C embrittlement |
| 600 °C to 950 °C | Sigma and other brittle phases form |
| 1020 °C to 1100 °C | Solution annealing, followed by rapid cooling |
Most design codes list allowable stress only up to about 315 °C. For that reason, duplex is not used for superheaters or hot steam lines. P91, P92 or 347H are the usual picks there.
Welding and Fabrication of Duplex Stainless Steel UNS S32205 Pipes and Tubes
Welding duplex is a balancing job. Too much heat and the grains coarsen and the ferrite-austenite split drifts. Too little heat and the weld cools too fast and turns mostly ferritic.
Typical practice uses a nitrogen-rich filler such as ER2209 (or E2209 for stick welding). Heat input is held to roughly 0.5–2.5 kJ/mm, and interpass temperature is commonly kept under 150 °C. Preheat is usually not needed, and post-weld heat treatment is normally avoided. A final ferrite check of about 35–65% confirms the balance.
After welding, pickling and passivation remove heat tint and restore the corrosion resistance of the surface. Heavy cold bending raises hardness, so large cold-formed parts often need solution annealing again. Always follow your qualified welding procedure.
Testing and Inspection of Duplex Stainless Steel UNS S32205 Pipes and Tubes
Duplex needs tests that austenitic grades do not. ASTM A923 methods detect harmful intermetallic phases such as sigma, and ASTM G48 measures pitting resistance. A ferrite count confirms the balance of the two phases, and a hardness test shows whether the heat treatment was done correctly.
On top of these, each lot goes through positive material identification, tensile and flattening tests, and a hydrostatic or non-destructive examination as the standard requires. Tube also gets flaring and, for welded tube, reverse flattening. Third-party inspectors are welcome at our works.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturers and Suppliers in India
Choosing the right material is important for industrial projects that require high strength and excellent corrosion resistance. Sachiya Steel International supplies duplex stainless steel pipes and tubes with a focus on quality, material verification and compliance with applicable industry standards. Our products support demanding applications in oil and gas, chemical processing, petrochemical and marine industries.
Proper solution annealing and rapid cooling help maintain the required material structure and corrosion resistance. When selecting a Duplex Stainless Steel UNS S32205 Pipes Manufacturer, buyers should check heat treatment records, chemical composition, hardness results and material test certificates. Working with a reliable Stainless Steel UNS S32205 Pipes and Tubes Supplier in India also helps ensure that products meet project specifications. Positive material identification (PMI) and ferrite content checks can be arranged according to order requirements. Related products, including ASTM A182 F60 flanges, ASTM A815 fittings and ASTM A240 plates, can also be sourced based on grade availability and applicable standards.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Size and Weight Chart
Weight per metre = (OD − wall) × wall × 0.0245, with OD and wall in mm. This uses a density of 7.80 g/cm³. Treat the numbers as estimates, since wall tolerance shifts the real weight.
OD and wall are in mm. Multiply the result by the pipe or tube length to obtain the total weight.
Pipes (wall in mm / weight in kg/m)
| NPS | OD (mm) | Sch 10S | Sch 40S | Sch 80S |
|---|---|---|---|---|
| ½" | 21.3 | 2.11 / 0.99 | 2.77 / 1.26 | 3.73 / 1.61 |
| ¾" | 26.7 | 2.11 / 1.27 | 2.87 / 1.68 | 3.91 / 2.18 |
| 1½" | 48.3 | 2.77 / 3.09 | 3.68 / 4.02 | 5.08 / 5.38 |
| 3" | 88.9 | 3.05 / 6.42 | 5.49 / 11.22 | 7.62 / 15.17 |
| 5" | 141.3 | 3.40 / 11.49 | 6.55 / 21.62 | 9.53 / 30.77 |
| 10" | 273.1 | 4.19 / 27.60 | 9.27 / 59.92 | 12.70 / 81.03 |
Tubes
| OD (mm) | Wall (mm) | Weight (kg/m) |
|---|---|---|
| 6.35 | 0.89 | 0.12 |
| 9.53 | 1.24 | 0.25 |
| 15.88 | 1.65 | 0.58 |
| 19.05 | 1.65 | 0.70 |
| 31.75 | 2.11 | 1.53 |
| 38.10 | 2.77 | 2.40 |
For any other size or wall, we can send a complete chart on request.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Common Materials
We manufacture and supply Duplex Stainless Steel UNS S32205 Pipes and Tubes in different sizes and specifications for industrial applications. As experienced Duplex Stainless Steel UNS S32205 Pipes and Tubes Suppliers, we offer products that meet applicable industry standards and project requirements, with material test certificates and inspection documentation available as required.
Common Name: Duplex 2205, 22Cr Duplex
UNS Grade: S32205
Dual-Certified Grade: S32205 / S31803, subject to specification requirements
EN / DIN Grade: 1.4462, X2CrNiMoN22-5-3
JIS Grade: SUS329J3L
Forged Flange Grade: ASTM A182 F60
Pipe Fitting Grade: ASTM A815 WP-S32205
Plate Grade: ASTM A240 S32205
Bar Grade: ASTM A276 S32205
We supply products according to the required material grade, dimensions and applicable standards. Our material documentation supports quality verification and traceability for industrial piping projects.
Duplex Stainless Steel UNS S32205 Pipes and Tubes Applications
- Oil and Gas: Produced water, topside process piping and chloride-bearing lines.
- Desalination Plants: High-pressure reverse osmosis piping and brine lines.
- Chemical Processing: Reactor feed lines and heat exchangers handling chlorides and acids.
- Marine and Offshore: Seawater cooling, firewater and ballast systems.
- Heat Exchangers and Condensers: Tube bundles where 316L suffers stress corrosion cracking.
- Pulp and Paper: Digesters, bleach plant lines and liquor piping.
- Biofuel and Ethanol Plants: Process lines exposed to chlorides and organic acids.
- Structural and Construction: Strong, corrosion-resistant tube for bridges, tanks and coastal structures.
Why Choose Us as Your Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturer in India?
Choosing us means getting access to a wide range of product sizes, flexible supply options and industry experience backed by established quality systems. We offer Duplex Stainless Steel UNS S32205 Pipes and Tubes in different outside diameters, wall thicknesses, schedules and lengths to match your project specifications. With a monthly production and supply capacity of up to 100 tons, we can handle bulk orders and specific project requirements without limiting our range to standard dimensions.
Our experience since 2005 helps us understand the needs of industrial buyers, EPC contractors and engineering companies across different sectors. We serve customers in 85+ countries and hold ISO 9001:2015, ISO 14001:2015, ISO 45001:2018 and applicable TÜV certifications. We also coordinate material testing, inspection, certification and export documentation according to agreed requirements. As a Duplex Stainless Steel UNS S32205 Pipes and Tubes Manufacturer in India, we focus on product quality, material traceability, custom sizing and dependable delivery to support your project from order placement to dispatch.
Countries We Export Duplex Stainless Steel UNS S32205 Pipes and Tubes To
We export Duplex Stainless Steel UNS S32205 Pipes and Tubes to customers in 85+ countries, supporting industrial projects across major international markets. Our export network serves oil and gas companies, EPC contractors, distributors, fabricators and engineering industries that require reliable piping materials. We coordinate product specifications, quality documentation, export packaging and shipping arrangements to meet the needs of domestic and international orders.
North America: USA, Canada, Mexico
Europe: Germany, United Kingdom, France, Italy, Netherlands, Spain, Poland
Middle East: UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain
Asia-Pacific: Singapore, Malaysia, Indonesia, Australia, Japan, South Korea, Vietnam
Africa: South Africa, Nigeria, Egypt, Kenya, Morocco
South America: Brazil, Argentina, Chile, Peru
We support international shipments with suitable packaging, pipe-end protection and export documents, including commercial invoices, packing lists and material test certificates, according to order requirements. Our team also coordinates shipping arrangements and third-party inspections when agreed upon. Contact us with your destination country, required sizes and order quantity to discuss supply and delivery options for your project.