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Marsh Nickel Alloys stands out as a top-notch manufacturer and supplier located in Canberra, Australia, with a focus on high-quality Duplex Steel S31803 Pipes. These pipes are celebrated for their remarkable strength, resistance to corrosion, and long-lasting durability, all crafted to meet the toughest industrial standards. At Marsh Nickel Alloys, there’s a strong commitment to precision manufacturing and rigorous quality control, ensuring that every product is consistent and reliable. Duplex Steel S31803 Pipes find their place in various industries, including oil and gas, chemical processing, marine, and power generation, offering robust solutions for transporting fluids and gases in high-pressure and corrosive settings, which guarantees safe and efficient operations in critical applications.
The composition of Duplex Steel S31803 Pipes includes around 22% chromium, 5–6% nickel, 3% molybdenum, and trace amounts of nitrogen, blending the advantages of both austenitic and ferritic stainless steels. This unique mix results in excellent mechanical properties, such as high tensile strength, superior toughness, and exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. These pipes are designed to maintain stability even in high temperatures and harsh chemical environments, ensuring dependable performance and long-term durability in demanding industrial settings.
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 Marsh Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Pipe in Canberra, Australia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Australia, 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.
You’ll find Duplex Steel S31803 Pipes widely utilized in chemical and petrochemical plants, oil and gas pipelines, seawater desalination systems, and marine engineering projects. They are perfect for transporting corrosive fluids and gases, linking essential process equipment, and building high-pressure piping systems. With their outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, these pipes promise long-lasting, leak-free performance. Their remarkable mechanical strength, corrosion resistance, and reliability make them indispensable for offshore platforms, refineries, chemical reactors, and heat exchangers that operate under tough industrial conditions.