Home > Duplex Steel > Duplex Steel S31803 Tube Fittings
Marsh Nickel Alloys, a premier manufacturer and distributor based in Canberra, Australia, proudly offers Duplex Steel S31803 tube fittings renowned for their exceptional strength and corrosion resistance. Our S31803 fittings are designed to meet the rigorous demands of various industrial applications, ensuring reliability and durability in challenging environments. With a commitment to quality and precision, we provide top-tier products that enhance performance and longevity. Whether you need fittings for petrochemical, marine, or other critical industries,Marsh Nickel Alloys delivers superior solutions tailored to your needs. Trust us for excellence in every fitting.
| ASTM A815 WPS S31803 Pipe Fittings Standard Dimensions | ASME/ ANSI B16.9, ASME B16.28, MSS-SP-43, BS1560, BS4504, BS10 ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799 |
|---|---|
| Specifications | ASTM A815 / ASME SA815 |
| Duplex Steel S31803 Elbow | Angle : 22.5 deg, 30deg, 45 deg, 90 deg, 180 deg, 1.0D, 1.5D, 2.0D, 2.5D, 3D, 4D, 5D, 6D, 7D-40D. Standard: ASME B16.9, ASME B16.28, ASME B16.25, MSS SP-75 DIN2605 JISB2311 JISB2312 JISB2313, BS, GB, ISO |
| A815 WPS S31803 Pipe Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| ASTM A815 WPS 31803 Pipe fittings Thread | NPT, BSPT, BSPP |
| Duplex Steel S31803 Forged Fittings Types | Seamless / Welded / ERW / Fabricated UNS S31803 DSS Pipe Fittings |
| 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 |
| 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 % |
These **Duplex Steel S31803 Tube Fittings** are constructed from a well-balanced duplex stainless steel alloy, which merges austenitic and ferritic microstructures to provide remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. They boast high tensile and yield strength, toughness, and fatigue resistance, even in elevated temperatures and aggressive chemical environments. Each fitting undergoes precision forging or machining, heat treatment, and thorough testing to ensure dimensional accuracy, metallurgical consistency, and leak-tight performance, making them ideal for critical tubing systems.
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The **Applications of Duplex Steel S31803 Tube Fittings** span process piping, heat exchangers, valves, and instrumentation lines in the oil and gas, chemical, and petrochemical industries. In marine and offshore settings, they find use in seawater piping, pumps, and high-pressure tubing systems. Power generation facilities utilize them in turbines, boilers, and condenser assemblies that demand corrosion-resistant and high-strength connections. The blend of mechanical strength, corrosion resistance, and reliability makes Duplex Steel S31803 Tube Fittings the perfect choice for high-performance and demanding industrial applications.
