Home > Duplex Steel > Duplex Steel S31803 Tube Fittings
Nasib Tube Fittings, located in Amman, Jordan, has built a solid reputation as a reliable manufacturer and supplier of high-performance Duplex Steel S31803 Tube Fittings, specifically designed for tough industrial settings. Known for their precision engineering and unwavering quality, the company delivers dependable solutions for fluid and gas handling systems. Their Duplex S31803 Tube Fittings are expertly crafted to provide outstanding strength, excellent corrosion resistance, and a long service life, making them perfect for industries that prioritize durability and safety. Nasib Tube Fittings proudly serves both regional and international clients with products that adhere to strict performance and operational standards.
The Duplex Steel S31803 Tube Fittings are made up of about 22% chromium, 5–6% nickel, 3% molybdenum, nitrogen, and trace elements that boost their corrosion resistance and strength. They feature a well-balanced microstructure of austenite and ferrite, which results in high tensile strength, impressive yield strength, and remarkable resistance to pitting, stress corrosion cracking, and fatigue. These fittings maintain good toughness, excel in chloride-rich environments, and ensure reliable performance in both high-pressure and high-temperature situations.
| ELEMENT | DUPLEX 31803 |
| NI | 4.50 – 6.50 |
| C | 0.030 max |
| MN | 2.00 max |
| P | 0.030 max |
| S | 0.020 max |
| SI | 1.00 max |
| CR | 22.0 – 23.0 |
| MO | 3.0 – 3.5 |
| N | 0.14 – 0.20 |
| FE | 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 Nasib Tube Fittings, we are the largest supplier, manufacturer, and exporter of Duplex Steel S31803 Tube Fittings in Amman, Jordan. Our advanced manufacturing facilities, strategically positioned in the Jordan, enable us to deliver high-quality solutions to meet your specific requirements. With a robust inventory of over 16,000 tons of top-grade materials, we are well-equipped to fulfil your needs promptly. Our commitment to excellence and efficiency ensures we always have the available stock to support your demands.
| STANDARD | UNS | WERKSTOFF NR. |
| Duplex S31803 | S31803 | 1.4462 |
| Straight Union | Bulkhead Union | Reducing Union | Union Elbow | Union Cross | Union Tee |
| Male Connector | Female Connector | Male Bulkhead Connector | Female Bulkhead Connector | Male to Male Elbow | Male Elbow |
| Female Elbow | Male to Female Elbow | Male Run Tee | Male Branch Tee | Female Branch Tee | Female Run Tee |
| Male Adaptor | Female Adaptor | Tube End Reducer | OD Plug | Bulkhead Lock Nut | OD Cap |
Contact us to get a quick quote for your requirement.
Duplex Steel S31803 Tube Fittings are commonly utilized in industries that demand high mechanical strength and exceptional corrosion resistance. They find extensive use in offshore platforms, chemical processing plants, desalination units, and marine engineering systems due to their durability in chloride-laden environments. Additionally, these fittings are favored in oil and gas pipelines, heat exchangers, industrial fluid networks, and pulp and paper processing facilities. Their capability to endure high pressure, aggressive chemicals, and varying temperatures makes them a trustworthy choice for critical and long-term industrial operations.
Please feel free to contact us if you need any further information or for enquiry.
©2024 Nasib Tube Fittings All Rights Reserved.
Standard : ASTM A276, A479 / ASME SA276, SA479
Thickness : 0.6 mm THK to 6.00 mm THK
Size Range : 1/16” 1/2” & 1.5MM to 38.1MM
Outer Diameter : 6.00 mm to 60.00 mm