Duplex Steel S31803 Pipe Fittings Manufacturer and Supplier in Chennai, India
Nestled in Chennai, India, we proudly stand as a top manufacturer and supplier of **Duplex Steel S31803 Pipe Fittings**. Our products are designed to be robust, corrosion-resistant, and high-strength, making them perfect for industrial piping systems. Duplex S31803, also known as UNS S31803 or 2205, is a popular duplex stainless steel grade celebrated for its impressive strength and resistance to stress corrosion cracking, particularly in environments rich in chlorides. We manufacture our fittings according to international standards like ASTM A815 and ASME B16.9, ensuring they deliver outstanding performance and precise dimensions for use in offshore, petrochemical, marine, and chemical processing sectors.
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Duplex Steel S31803 Pipe Fittings Specification
Specifications ASTM A815 / ASME SA815
Dimensions ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size 1/2″ NB to 24″NB in
Type Seamless / Welded / Fabricated
Bending Radius R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Thickness Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS
Our **Duplex Steel S31803 Pipe Fittings** are made up of about 22% chromium, 5–6.5% nickel, 3% molybdenum, and a carefully controlled amount of nitrogen. This unique blend provides excellent resistance to pitting, crevice corrosion, and general corrosion, even in the harshest conditions. With a high tensile strength of around 620 MPa and a yield strength of about 450 MPa—nearly double that of austenitic stainless steels—our fittings are available in both seamless and welded forms. The range includes elbows, tees, reducers, caps, and stub ends, making them ideal for high-pressure and corrosive applications.
Duplex Steel S31803 Pipe Fittings Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| 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 Steel S31803 Pipe Fittings Mechanical Properties
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| S31803 | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
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Largest Duplex Steel S31803 Pipe Fittings Supplier in Chennai, India
Meet Fittings is a leading supplier of Duplex Steel S31803 Pipe Fittings in Chennai, India. We offer an extensive range of Monel K500 fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
If You Are Looking To Buy High Quality
Duplex Steel S31803 Pipe Fittings Equivalent Grade
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex 2205 | S31803 | 1.4462 |
Why Choose Duplex Steel S31803 Pipe Fittings from Meet Fittings?
Duplex Steel S31803 Pipe Fittings from Meet Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
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Duplex Steel S31803 pipe fittings offer exceptional corrosion resistance, particularly against pitting, crevice corrosion, and stress corrosion cracking, making them ideal for harsh environments. They provide high strength and excellent resistance to fatigue, making them durable under pressure. The alloy’s good weldability and formability enhance the ease of fabrication. Duplex Steel S31803 pipe fittings also offer superior toughness and stress resistance, ensuring reliability in demanding applications such as chemical processing, marine, and oil & gas industries. Their cost-effectiveness and long-lasting performance make them a preferred choice for critical piping systems.
Duplex Steel S31803 Pipe Fittings Size Chart
| Outer Diameter And Inside Diameter | Equivalent | Diameter Of Pipe Nominal | Typical Threads In Inches |
| 5/16 | 0.313 | 1/16 | 27 |
| 13/32 | 0.405 | 1/8 | 27 |
| 35/64 | 0.540 | 1/4 | 18 |
| 43/64 | 0.675 | 3/8 | 18 |
| 27/32 | 0.840 | 1/2 | 14 |
| 1-3/64 | 1.050 | 3/4 | 14 |
| 1-5/16 | 1.315 | 1 | 11-1/2 |
| 1-21/32 | 1.660 | 1-1/4 | 11-1/2 |
| 1-29/32 | 1.900 | 1-1/2 | 11-1/2 |
| 2-3/8 | 2.375 | 2 | 11-1/2 |
| 2-7/8 | 2.875 | 2-1/2 | 8 |
| 3-1/2 | 3.500 | 3 | 8 |
| 4 | 4.000 | 3-1/2 | 8 |
Types of Duplex Steel S31803 Pipe Fittings
Are Custom Sizes Available for Duplex Steel S31803 Pipe Fittings?
Yes, custom sizes for Duplex Steel S31803 Pipe Fittings are available at Meet Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@meetfitings.co.in.
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Application Industry of Duplex Steel S31803 Pipe Fittings
You’ll find **Duplex Steel S31803 Pipe Fittings** commonly used in desalination plants, heat exchangers, pressure vessels, subsea oil & gas pipelines, and the paper & pulp industries. Their remarkable resistance to chloride-induced stress corrosion and erosion-corrosion makes them a perfect fit for marine and brackish water applications. These fittings excel under high mechanical stress and fluctuating pressure conditions. With their superior weldability, durability, and cost-effectiveness over the long haul, Duplex S31803 fittings are a dependable choice for critical infrastructure in challenging service environments.
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