Home > Super Duplex Steel > Super Duplex Steel Tube Fittings
Jassem Tube Fittings, located in Doha, Qatar, has built a solid reputation as a manufacturer and supplier of top-notch piping solutions, including Super Duplex Steel Tube Fittings. With a focus on engineering excellence and rigorous quality control, the company provides products that are designed to withstand extreme service conditions. The Super Duplex Steel Tube Fittings from Jassem Tube Fittings boast remarkable strength, exceptional corrosion resistance, and long-lasting reliability in harsh environments. Manufactured to meet international standards, these fittings guarantee leak-free connections and operational safety. Committed to innovation and customer satisfaction, Jassem Tube Fittings plays a vital role in supporting critical industries across the Middle East with durable and efficient tube fitting solutions.
Super Duplex Steel Tube Fittings are crafted from alloys that typically contain around 25% chromium, 7% nickel, 3–4% molybdenum, and a controlled amount of nitrogen. This well-balanced austenitic-ferritic microstructure offers excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. On the mechanical side, these fittings showcase high tensile strength, usually around 800 MPa, along with superior yield strength compared to standard stainless steels. They also provide good ductility, impact toughness, and fatigue resistance, ensuring reliable performance under high pressure, temperature fluctuations, and intense mechanical stress in demanding industrial settings.
| 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.
Super Duplex Steel Tube Fittings find extensive use in industries that demand exceptional strength and corrosion resistance. You’ll commonly see these fittings in oil and gas production, offshore platforms, petrochemical processing, desalination plants, and various chemical industries. They are particularly well-suited for handling fluids that are rich in chlorides and operate under high pressure and high temperatures, making them a go-to choice for challenging applications.
Please feel free to contact us if you need any further information or for enquiry.
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