Location
Mumbai – 400 004, INDIA.
+91 9769369223
sales@navrangsteel.com
Super Duplex Steel Tubes are crafted using a cold drawing process that produces smooth surfaces, making them ideal for aesthetic and precise applications. They are manufactured using modern machinery and are more resistant to corrosion, heat, and pressure than austenitic steels. Furthermore, they are easier to weld and have a lower thermal expansion. The same three metals are present in both Super Duplex Steel Tubes and Duplex Steel Tubes but at different levels. Duplex has a chromium content of 22%, a nickel content of 5-6%, and a molybdenum content of 3%.
Meanwhile, a super duplex contains 25% chromium, 7% nickel, and 4% molybdenum. The higher levels of these elements give super duplex its superior corrosion resistance over duplex stainless steel. Super Duplex Tubes, like Super Duplex Steel S32750 Tubes, is a mixed microstructure of austenite and ferrite (50/50), which has improved strength over ferritic and austenitic steel grades.
Super Duplex Steel Tube is more expensive than duplex steel tube, owing to its higher nickel content. On the other hand, a Super duplex is much stronger. It can withstand corrosive environments such as those found in the marine or petrochemical industries for longer than a duplex.
They are used in many industries because of their high resistance to corrosion, great strength, and low thermal expansion. In addition, these pipes and tubes are highly resistant to a wide range of acids and organic materials.
Super Duplex Steel Tubes have a wide range of applications in the energy sector. They are used in heat exchangers for gas and oil production, desalination, and industrial systems. Due to their corrosion resistance, these tubes are used for applications such as FGD systems in the power industry and other chloride-containing solutions.
Due to their high alloy content, Super Duplex stainless steels have high corrosion resistance. The content of chromium, molybdenum, and nickel gives these materials excellent resistance to corrosive environments. They are especially useful in hydraulic applications in marine environments. So, if you want your tubes and pipes to withstand corrosive conditions, Super Duplex Tube is the perfect choice for your next project.
Super Duplex Tubes are available in round, square, rectangular, and U-tube shapes. These pipes can be forged and annealed at temperatures in the range of 1100degC to 1250degC. It would help if you allowed sufficient time for the furnace to reach the required temperature and quench the steel with the right amount of water.
The high strength of duplex stainless steels can pose a disadvantage when forming, machining, or in other complicated processes. For example, these materials require a lot of force to form and are more complicated to make than other types of steel. Furthermore, they are more expensive to manufacture. However, this cost is offset by the lower nickel content, which makes them more affordable.
Table of Content
| Specification | ASTM A789 / ASME SA789 |
| Size | 5.0 mm – 1219.2 mm |
| Outside Diameter | 6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock |
| Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Thickness Range | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | Seamless / ERW / Welded / Fabricated / CDW |
| Form | Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pan Cake Coils, Hydraulic Tubes |
| Length | Single Random, Double Random & Required Length End: Plain End, Beveled End, Treaded |
| End Protection | Plastic Caps |
| Surface Finish | 2B, No.4, No.1, No.8 Mirror Finish for Super Duplex Steel Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Schedule | SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
| Tube End | Plain End, Beveled End, Treaded. |
Check ASME B36.19 Super Duplex Steel Tube, A789 Super Duplex Sch 40 Tube dimensions and thickness chart, SA 789 Tube and Super Duplex Steel Square Tube price per meter in India
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