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Xuan Nickel Alloys stands out as a top-notch manufacturer and supplier of Duplex Steel S31803 Pipes in Da Nang, Vietnam. We take pride in delivering high-quality duplex stainless steel products that are specifically designed for tough industrial applications. Our Duplex Steel S31803 Pipes blend the robust strength of ferritic stainless steel with the impressive corrosion resistance of austenitic stainless steel, ensuring outstanding performance even in harsh environments. Crafted with precision and in line with international standards, these pipes promise durability, reliability, and a long lifespan. We cater to various industries, including chemical processing, oil and gas, petrochemical, and marine, offering cost-effective, high-performance piping solutions for critical operations around the globe.
These Duplex Steel S31803 Pipes are made up of roughly 22% chromium, 5-6% nickel, 3% molybdenum, and trace amounts of nitrogen, striking a perfect balance between ferritic and austenitic microstructures. They boast high tensile and yield strength, exceptional toughness, and remarkable resistance to stress corrosion cracking. The alloy is particularly resistant to corrosion and pitting in environments rich in chlorides and acids. With excellent weldability, formability, and long-term stability, Duplex Steel S31803 Pipes maintain their mechanical integrity and reliability under thermal, chemical, and mechanical stresses, making them perfect for demanding industrial applications.
Pipe Range : 1 / 2″ NB – 8″ NB
Outer Diameter : 6.0-630mm
Wall Thickness : 0.3mm – 50 mm
Schedules : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Single Random, Double Random & Required Length
Specifications : ASTM A790 / ASME SA790
| Duplex | S31803 |
|---|---|
| Ni | 4.50 – 6.50 |
| Fe | 63.72 min |
| Cr | 22.0 – 23.0 |
| C | 0.030 max |
| Si | 1.00 max |
| Mn | 2.00 max |
| P | 0.030 max |
| S | 0.020 max |
| N | 0.14 – 0.20 |
| Grade | S31803 |
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669; |
At Xuan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Pipe in Da Nang, Vietnam, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Vietnam, 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.
These pipes are widely utilized in sectors that require both high strength and corrosion resistance. In chemical processing, they find their place in heat exchangers, piping systems, and reactors that handle corrosive substances. The oil and gas industry relies on them for offshore platforms, pipelines, and subsea systems that are exposed to seawater and sour gas. Petrochemical plants incorporate them into process piping, evaporators, and condensers. In marine applications, they are essential for desalination plants, seawater cooling systems, and shipbuilding. The combination of mechanical strength, corrosion resistance, and durability makes Duplex Steel S31803 Pipes a vital choice for various industrial needs.