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Nadia Tube Fittings is a reliable manufacturer and supplier of Duplex Steel S31803 Tube Fittings based in Kuala Lumpur, Malaysia. They specialize in providing top-notch solutions for piping and instrumentation systems, even in tough industrial settings. Crafted from high-quality Duplex Steel S31803, these fittings boast remarkable corrosion resistance, blending the strength of ferritic steel with the durability of austenitic stainless steel. They’re built to handle high-pressure and high-temperature situations, ensuring secure, leak-proof connections for hydraulic, instrumentation, and process systems.
These Duplex Steel S31803 Tube Fittings showcase impressive mechanical properties, such as high tensile and yield strength, along with excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Their sturdy design guarantees longevity under extreme conditions, while the precision-engineered ends make installation a breeze and ensure reliable sealing. Available in a variety of configurations like elbows, tees, reducers, and couplings, as well as in different sizes and international standards including BSP, NPT, and metric threads, these fittings consistently perform well in demanding industrial applications.
| 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 Nadia Tube Fittings, we are the largest supplier, manufacturer, and exporter of Duplex Steel S31803 Tube Fittings in Kuala lumpur, Malaysia. Our advanced manufacturing facilities, strategically positioned in the Malaysia, 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.
You’ll find Duplex Steel S31803 Tube Fittings widely used in industries where durability, corrosion resistance, and high-pressure performance are essential. The chemical and petrochemical sectors rely on them for managing aggressive acids, chlorides, and process fluids, while the oil and gas industry utilizes them in offshore platforms, refineries, and high-pressure pipelines. They’re also crucial in marine, power generation, pharmaceutical, and environmental engineering applications, where long-lasting reliability, leak-proof connections, and resistance to harsh conditions are key. With their outstanding strength, corrosion resistance, and precision engineering, Duplex Steel S31803 Tube Fittings offer trustworthy solutions for today’s industrial piping and instrumentation needs.
Please feel free to contact us if you need any further information or for enquiry.
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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