Home > Duplex Steel > Duplex Steel S31803 Pipe Fittings
At Nasir Nickel Alloys in Manama, Bahrain, Duplex Steel S31803 Pipe Fittings are crafted to deliver exceptional strength, corrosion resistance, and long-term durability in challenging industrial environments. Composed of a balanced austenitic-ferritic stainless steel, these fittings resist stress-corrosion cracking, pitting, and crevice corrosion, even in chloride-rich and chemically aggressive media. Designed for critical piping applications, Duplex Steel S31803 Pipe Fittings ensure leak-tight performance, dimensional stability, and mechanical integrity under high pressure and thermal cycling. Their reliability makes them ideal for chemical, petrochemical, oil and gas, marine, and offshore industries requiring high-performance piping solutions.
Duplex Steel S31803 Pipe Fittings feature a balanced composition of chromium, nickel, molybdenum, and nitrogen, forming a mixed austenitic-ferritic microstructure. This composition provides excellent tensile and yield strength, high toughness, and outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking. The fittings maintain dimensional stability and mechanical integrity under thermal cycling, mechanical stress, and high-pressure conditions. Duplex Steel S31803 Pipe Fittings combine strength, corrosion resistance, and durability, ensuring reliable, leak-tight connections in demanding piping systems where conventional stainless steel fittings may fail.
| 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 |
| Duplex Steel UNS S31803 Pipe Fittings size | Seamless ASTM A815 WPS S31803 Butt Weld Fittings: 1/2″ – 10″ Welded SA 815 S31803 Butt Weld Fittings: 1/2″ – 48″ |
| Duplex Steel S31803 Forged Fittings Working Pressure | Threaded end-2000lb/ 3000lb/ 6000lbs Duplex Stainless Steel S31803 Pipe Fittings Socket-weld end-3000/ 6000/ 9000lbs Duplex Stainless Steel UNS S31803 Pipe Fittings |
| Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Stainless Duplex S31803 Pipe Fittings |
| Duplex Steel WPS S31803 Pipe Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| SA 815 S31803 Pipe Fittings Size Range | 1/2″ NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) |
| Specialized manufacturer of | 90º Elbows, 45 degree Elbows, Tee, Cross, Couplings, Caps, Reducers, Inserts, Equal Tees & Reducing Tees, Nipples, Forged Pipe Fittings, Socket Weld & Threaded, 90° & 45° Elbows – Male-Male, Male-Female, Female-Female, Couplings, Union |
| Duplex Steel S31803 Pipe Fittings End |
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| Material Test Certificates (MTC) for Duplex UNS S31803 Pipe Fittings as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
| 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 Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Pipe Fittings in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, 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 Pipe Fittings are widely used in industries that require corrosion-resistant, high-strength, and durable piping systems. They are critical in chemical processing plants for pipelines, reactors, and heat exchangers exposed to acids, alkalis, and chlorides. Petrochemical and oil and gas industries employ these fittings in pumps, piping assemblies, and process control systems. Power generation and desalination plants utilize them for high-temperature, high-pressure lines. Offshore and marine applications benefit from their resistance to seawater corrosion and thermal stress. These fittings provide secure, long-lasting, and reliable connections for piping systems operating under extreme chemical, thermal, and mechanical conditions.
