Home > Super Duplex Steel > Super Duplex Steel Tube Fittings
Super Duplex Steel Tube Fittings are specialized parts designed to connect, control, and guide the flow of fluids in piping and tubing systems, especially in tough industrial settings. Crafted from Super Duplex Stainless Steel, these fittings boast remarkable strength and resistance to corrosion, thanks to their unique dual-phase microstructure of austenite and ferrite. This makes them perfect for high-pressure and high-temperature situations where corrosion—particularly from chlorides or seawater—can be a real issue.
These tube fittings come in a variety of shapes, including elbows, tees, reducers, unions, and couplings, and are widely used in sectors like oil and gas, petrochemicals, chemical processing, desalination plants, and offshore platforms. With the outstanding mechanical properties of Super Duplex Steel, these fittings can endure extreme stress and harsh environments far longer than those made from regular stainless steels. They excel at preventing problems like pitting, crevice corrosion, and stress corrosion cracking.
| Specifications | ASTM A276 ASME SA 479 |
| Size | 6mm to 38mm to 1/4″ to 1 1/2″ |
| Thread | NPT, BSP, BSPT, UNF, ISO, SAE etc. |
| Standards | ASTM B16 ASTM B 453 |
|
OD |
OD Actual |
Thread Designation – Nominal Size |
Thread per inch |
|
|
(fraction inch) |
(inches) |
(inches) |
NPT |
BSP |
|
5/16 |
0.3125 |
1/16 |
27 |
28 |
|
13/32 |
0.405 |
1/8 |
27 |
28 |
|
35/64 |
0.540 |
1/4 |
18 |
19 |
|
43/64 |
0.675 |
3/8 |
18 |
19 |
|
27/32 |
0.840 |
1/2 |
14 |
14 |
|
1-3/64 |
1.050 |
3/4 |
14 |
14 |
|
1-5/16 |
1.315 |
1 |
11-1/2 |
11 |
|
1-21/32 |
1.660 |
1-1/4 |
11-1/2 |
11 |
|
1-29/32 |
1.900 |
1-1/2 |
11-1/2 |
11 |
|
2-3/8 |
2.375 |
2 |
8 |
11 |
|
2-7/8 |
2.875 |
2-1/2 |
8 |
11 |
|
3-1/2 |
3.5 |
3 |
8 |
11 |
|
4 |
4.0 |
3-1/2 |
8 |
11 |
|
4-1/2 |
4.5 |
4 |
8 |
11 |
|
5-5/8 |
5.563 |
5 |
8 |
11 |
|
6-5/8 |
6.625 |
6 |
8 |
11 |
Contact us to get a quick quote for your requirement.
Beyond their durability, Super Duplex Steel Tube Fittings are also known for their excellent weldability and long service life, which helps minimize maintenance and downtime. However, it’s crucial to install and handle them properly to maintain their corrosion-resistant qualities. While they may come with a higher price tag compared to fittings made from lower-grade materials, their performance and longevity make them a smart and cost-effective choice for critical fluid-handling systems.
Please feel free to contact us if you need any further information or for enquiry.
©2024 Nadia Tube Fittings All Rights Reserved.