Introduction ASTM A815 UNS S31803 Buttweld Fittings
ASTM A815 UNS S31803 Duplex Buttweld Fittings are designed and manufactured in line with international standards and ASTM specifications. These Duplex S31803 Pipe Fittings are made from a highly durable and corrosion resistant material known as duplex stainless steel. Duplex Steel ASTM A815 pipe fittings such as Duplex Steel S31803 tees, Duplex Steel crosses, Duplex Steel 2205 reducers, Duplex Steel S31803 Elbows, Duplex Steel S32205 stub ends, S32205 Duplex End Pipe Caps, etc. Duplex butt weld tube fittings are widely used in oil and gas, petrochemical, chemical processing, and other applications.
Specifications of ASTM A815 UNS S31803 Duplex Buttweld Fittings
ASTM A815 covers grades of wrought duplex stainless steels such as material UNS S31803, S32205, S32750, S32760, and others
These ASTM A815 WP-S UNS S31803 fittings are available in various sizes ranging from ½ inch to 24 inch in diameter
The Duplex 2205 fittings are manufactured in accordance with ASME B16.9/ANSI B16.9, MSS SP-43, or MSS SP-75 specifications
Schedule 40 weld elbows are designed to work under high-pressure and high-temperature environments
| Specifications | ASTM A815 / ASME SA815 |
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Grades | Duplex S31803, S32205 |
| Size | 1/2" NB to 24″NB in |
| Type | Seamless / Welded / Fabricated |
| Thickness | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
Grade S31803 Duplex Steel Pipe Fittings Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
ASTM A815 Duplex Steel Butt Weld Pipe Fittings Mechanical Properties
| Grades | Density (g/cm3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Types of ASTM A815 S31803 Duplex Weld Pipe Fittings
- Duplex Elbows: These fittings are used to redirect the flow of fluids in a piping system at a certain angle. Includes ASTM A815 WPS31803 Duplex Steel 45° Elbow, 90° Elbow, 180° Elbow, ASTM A815 Duplex Steel LR/SR Elbow
- Duplex Butt Weld Tees: They are used to join three pipes at a point, forming a T-shaped connection. Includes Equal Tee, Reducing Tee, laterial tee(butt weld reducing tee).
- Duplex Crosses: Duplex crosses are fittings designed to provide a four-way intersection in piping systems.
- Duplex Lap Joint Stub Ends: Duplex lap joint stub ends are used to create a flanged connection in piping systems.
- Duplex Butt Weld Reducers: These fittings connect pipes of different sizes or diameters in a piping system. Includes Duplex Steel ASTM A815 WPS S31803 Concentric Reducer (4 x 3, 6x4, 8x6, 4 x 2 , 10 x 8 concentric reducer), ASTM A815 Duplex Steel Eccentric Reducer
- Duplex butt weld Caps: They are used to close the ends of pipe assemblies, and prevent leakage in the system.
Benefits of ASME SA815 UNS S31803 Duplex BW Fittings
- The high-quality duplex material used in the butt weld tube fittings makes them resistant to corrosion and oxidation.
- A815 WPS31803 butt weld pipe reducer have high tensile and yield strength, which makes them suitable for use under high pressures and temperatures.
- These steel buttweld caps fittings are easy to install, disassemble, and maintain.
- They reduce the likelihood of leakage and damage to piping systems.
Applications of ASTM A815 WPS2205 Buttweld Fittings
- Oil and Gas: They are used in the exploration, production, and transportation of oil and gas.
- Petrochemical Industry: They are used in the production of petrochemical products like plastics, fertilizers, and chemicals.
- Chemical Processing: These fittings are widely used in chemical processing plants due to their excellent resistance to corrosion.
- Water Treatment: They find use in water treatment plants, where they are used to transport water and other liquids.
ASTM A815 WP-S UNS S31803 Suppliers
Our company is a professional and reliable one-stop service manufacturer suppliers exporters. We not only provide s31803 duplex pipes, tubes, plates, sheets, and round bar raw materials, but also provide 2205 butt welded pipe fittings, forged pipe fittings, flanges, fasteners, and fabricated pipe spools service. Duplex Steel A815 S31803 Buttweld Pipe Fittings Price Per Kg is $15.50 /each, prices are fluctuating as per market. Free samples can be provided. Contact us for a free quote and competitive prices.





