Home > Duplex Steel > Duplex Steel S31803 Pipe Fittings
Elvis Nickel Alloys, a reputable manufacturer and supplier located in Houston, USA, proudly offers top-notch Duplex Steel S31803 Pipe Fittings. These fittings are crafted for exceptional strength, corrosion resistance, and durability, making them perfect for tough environments. Made from the popular duplex stainless steel grade UNS S31803, they boast a well-balanced austenitic-ferritic microstructure that merges the best features of both stainless steel types. They stand up remarkably well against pitting, crevice corrosion, and stress corrosion cracking, particularly in chloride-rich or marine settings. You can find these fittings in various forms, including elbows, tees, reducers, caps, and stub ends, all adhering to standards like ASTM A815 and ASME B16.9.
Duplex Steel S31803 Pipe Fittings are made up of about 22% chromium, 5.5% nickel, 3% molybdenum, and 0.15–0.20% nitrogen, with the rest being iron and trace elements. This unique blend gives the fittings impressive tensile strength (up to 750 MPa) and yield strength (≥450 MPa), nearly twice that of austenitic stainless steels. They also show remarkable resistance to localized corrosion, erosion, and stress corrosion cracking. These fittings maintain their toughness even in low temperatures, offer good weldability, and are perfect for applications that require both mechanical strength and corrosion protection in harsh conditions.
| 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 Elvis Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Pipe Fittings in Texas, USA, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the USA, 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 demanding environments due to their exceptional strength and corrosion resistance. Common applications include the oil and gas industry, chemical processing, marine environments, and power generation. They are ideal for handling aggressive fluids, high-pressure systems, and environments prone to chloride-induced corrosion. These fittings ensure reliability and longevity in infrastructure such as pipelines, reactors, and heat exchangers, making them a preferred choice for critical industrial applications.
