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Sayam Nickel Alloys is a well-respected manufacturer and supplier of Duplex Steel S31803 Tubing based in Hyderabad, providing top-notch stainless steel solutions for critical industrial needs. The company boasts state-of-the-art manufacturing facilities and follows rigorous quality control measures to ensure they meet international standards. Their Duplex Steel S31803 Tubing is known for its precise dimensions, consistent wall thickness, and smooth surface finish. Designed for high strength and outstanding corrosion resistance, this tubing is perfect for industries like chemical, petrochemical, oil and gas, marine, and power generation, delivering dependable performance even in tough environments.
The Duplex Steel S31803 Tubing is crafted from a well-balanced austenitic-ferritic stainless steel blend that includes chromium, nickel, molybdenum, and nitrogen. This unique composition offers remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, the tubing showcases impressive tensile and yield strength, along with good toughness and ductility. It remains stable under high pressure, temperature changes, and harsh environmental conditions, ensuring reliable performance in demanding piping and structural applications.
| Specifications | : | ASTM A789 ASME SA789 |
| Dimensions | : | ASTM, ASME and API |
| Tube Size | : | 1/2″NB TO 12 “NB IN |
| Specialized in | : | Large Diameter Size |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80 |
| Type | : | Seamless / ERW / Welded / Fabricated |
| Form | : | Round, Hydraulic Etc |
| Length | : | Single Random, Double Random & Cut Length. |
| End | : | Plain End, Beveled End, Treaded |
| S31803 | 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 |
| S31803 | 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 % |
At Sayam Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Tubing in Hyderabad, India, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the India, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
This tubing is widely utilized in sectors that require corrosion-resistant, high-strength, and durable solutions. You’ll find it in chemical processing equipment, heat exchangers, pressure vessels, pipelines, and fluid transport systems. It’s also heavily used in the oil and gas, petrochemical, marine, offshore, and power generation industries. Thanks to its ability to resist chlorides, acids, and aggressive environments, Duplex Steel S31803 Tubing is the go-to choice for long-lasting, maintenance-free, and safe operation in challenging industrial and structural systems.