Home > Duplex Steel > Duplex Steel S31803 Tube Fittings
Fajar Metals, located in Jakarta, Indonesia, stands out as a top manufacturer and supplier of high-quality Duplex Steel S31803 Tube Fittings. These fittings are crafted for tough applications across various industries, including oil & gas, petrochemical, marine, and power generation. The Duplex Steel S31803 is known for its remarkable blend of strength, corrosion resistance, and toughness, making it perfect for high-pressure and high-temperature settings. Manufactured to meet international standards, these tube fittings guarantee secure, leak-proof connections in critical piping systems. Fajar Metals offers both customized and standard fittings, ensuring they meet the strict demands of clients while providing reliability and durability in harsh conditions.
Duplex Steel S31803 Tube Fittings are made up of 21–23% chromium, 4.5–6.5% nickel, 2.5–3.5% molybdenum, nitrogen, and the rest being iron. The unique dual-phase austenitic-ferritic structure of S31803 gives it outstanding resistance to stress corrosion cracking, pitting, and crevice corrosion. These fittings boast a tensile strength between 620 to 880 MPa, a yield strength of around 450 MPa, and an elongation of 25%. Their impressive mechanical strength and ability to withstand harsh environments, including high-pressure and chloride-rich conditions, make them perfect for demanding applications that require long-lasting performance and reliability in both chemical and marine sectors.
| 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 % |
At Fajar Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803Tube Fittings in Jakarta, Indonesia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Indonesia, 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 Tube Fittings find extensive use in industries that need robust, corrosion-resistant connections in high-pressure systems. In the oil and gas sector, these fittings are crucial for wellhead and pipeline connections, where high strength and resistance to stress corrosion cracking are vital. In petrochemical and chemical plants, they are essential for high-pressure reactor systems and fluid handling equipment.