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Sayam Nickel Alloys stands out as a reliable manufacturer and supplier of Duplex Steel S31803 Flanges in Hyderabad, delivering top-notch piping components for essential industrial applications. With state-of-the-art manufacturing facilities and a commitment to rigorous quality control, the company ensures that its products meet international standards. The Duplex Steel S31803 Flanges they provide are crafted with precise dimensions, a smooth surface finish, and consistent mechanical properties. Designed for high strength and exceptional corrosion resistance, these flanges guarantee secure connections, leak-proof performance, and dependable operation across various sectors, including chemical, petrochemical, oil and gas, marine, and power generation. They promise maintenance-free and long-lasting service.
These flanges are made from a well-balanced austenitic-ferritic stainless steel alloy that includes chromium, nickel, molybdenum, and nitrogen. This unique composition offers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, the flanges boast high tensile and yield strength, along with good toughness and ductility. They maintain their structural integrity even under high pressure, temperature fluctuations, and harsh environmental conditions, ensuring reliable performance in critical industrial piping systems.
| Specifications | ASTM A182 / ASME SA182 |
| Size | 1/8″ NB TO 48″ NB |
| Standards | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61 |
| 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 |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
At Sayam Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Flanges 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.
Duplex Steel S31803 Flanges are widely utilized in industries that demand strong, corrosion-resistant, and durable piping connections. You’ll find them in chemical processing plants, heat exchangers, pressure vessels, pipelines, and various industrial equipment. Their extensive use in oil and gas, petrochemical, marine, offshore, and power generation sectors is a testament to their ability to withstand chlorides, acids, and challenging operating conditions, making them perfect for long-term, maintenance-free, and reliable performance in crucial piping and fluid handling systems.