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Duplex steels are becoming increasingly popular in certain industries due to their unique properties. Specifically, Duplex Steel S31803 Seamless Tubes offer superior strength and corrosion resistance compared to other types of steels. Nowadays, these types of tubes are being used in a wide variety of applications, ranging from automotive manufacturing to paper mills.
Duplex steel is a type of alloy that combines the best properties of both ferritic and austenitic steels. This combination results in higher strength and better corrosion resistance than either type alone can provide. The two most common types of duplex steel are S31803 (also known as 1.4462) and Duplex Steel S32205 Seamless Tubes (1.4410). Both offer an excellent combination of strength and corrosion resistance for a wide range of applications.
Duplex Steel S32205 Seamless Tubes have an excellent strength-to-weight ratio, making them ideal for applications where weight is a critical factor. By replacing heavier materials with these lightweight tubes, you can significantly reduce the overall weight of your project while maintaining its overall strength and durability. This can be especially beneficial in applications such as architectural structures or machine components where weight reduction is essential for reducing cost or improving performance.
Another advantage of using duplex steel S32205 seamless tubes is their high temperature performance. They can withstand temperatures up to 600°F (316°C). This makes them suitable for use in extreme environments such as petrochemical refineries or power plants that operate at elevated temperatures. Furthermore, they have improved thermal conductivity compared to conventional grades of stainless steel which helps dissipate heat more quickly and efficiently during operation.
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Stainless Steel S31803 Seamless Tubes are seamless tubes made from a duplex stainless steel alloy containing a balanced proportion of austenite and ferrite. These seamless tubes are known for their high strength, excellent corrosion resistance, and good weldability, making them suitable for various applications.
Duplex Steel S31803 Seamless Steel Pipe offers several advantages over other types of pipes, such as superior corrosion resistance, high strength & durability. They also exhibit good resistance to stress corrosion cracking & erosion, making them suitable for harsh environments. Additionally, their seamless construction eliminates the risk of leakage making them ideal for high-pressure & high-temperature applications.
Stainless Steel S31803 Seamless Tubes are used in various applications, including chemical processing, petrochemical & oil & gas industries. They are also commonly used in marine applications, pulp and paper processing & heat exchangers. Additionally, they are widely used in constructing bridges, buildings & other structures.
Stainless Steel S31803 Seamless Tubes are known for their excellent corrosion resistance, high strength & good weldability. They also exhibit good resistance to stress corrosion cracking, erosion and abrasion making them suitable for harsh environments. Additionally, their seamless construction eliminates the risk of leakage making them ideal for high-pressure & high-temperature applications.
Stainless Steel S31803 Seamless Tubes are manufactured using a process called hot extrusion or cold drawing. In hot extrusion, a billet of Stainless Steel S31803 is heated to a high temperature & then forced through a die to create the desired shape. In cold drawing, a metal tube is pulled through a die to reduce its diameter and increase its length. The seamless construction of these tubes eliminates the risk of leakage.
S32205 seamless tubes are tubes made from a duplex stainless steel alloy containing a balanced proportion of austenite and ferrite. They are known for their high strength, excellent corrosion resistance, & good weldability, making them suitable for various applications.
S32205 seamless tubes offer several advantages over other types of tubes, such as superior corrosion resistance, high strength & durability. They also exhibit good resistance to stress corrosion cracking & erosion making them suitable for use in harsh environments. Additionally, their seamless construction eliminates the risk of leakage, making them ideal for high-pressure and high-temperature applications.
S32205 seamless tubes are used in a wide range of applications, including chemical processing, petrochemical & oil & gas industries. They are also commonly used in marine applications, pulp and paper processing and heat exchangers. Additionally, they are widely used in the construction of bridges, buildings and other structures.
S32205 seamless tubes are known for their excellent corrosion resistance, high strength & good weldability. They also exhibit good resistance to stress corrosion cracking, erosion & abrasion, making them suitable for use in harsh environments. Additionally, their seamless construction eliminates the risk of leakage making them ideal for high-pressure and high-temperature applications.
S32205 seamless tubes are manufactured using a process called hot extrusion or cold drawing. In hot extrusion, a billet of S32205 is heated to a high temperature and then forced through a die to create the desired shape. In cold drawing, a metal tube is pulled through a die to reduce its diameter & increase its length. The seamless construction of these tubes eliminates the risk of leakage.
| 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 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. |
| UNS Designation & International Equialent for Duplex S31803 Tubes | |||||||||
| Type | UNS | WNR. | |||||||
| Duplex S31803 | S31803 | 1.4462 | |||||||
| Duplex S32205 | S32205 | 1.4462 | |||||||
| Grade | C | Mn | Si | P | S | Cr | Ni |
| Duplex Steel S31803 | 0.03 max | 2 max | 1 max | 0.03 max | 0.03 max | 21-23 | 4.5-6.5 |
| Duplex Steel S32205 | 0.03 max | 2 max | 1 max | 0.03 max | 0.03 max | 22-23 | 4.5-6.5 |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| S31803 | 8.0 g/cm3 | 1400 °C (2550 °F) | 620 min | 450 min | 25 % |
| S32205 | 8.0 g/cm3 | 1400 °C (2550 °F) | 655 min | 485 min | 25 % |
Check ASME B36.19 Duplex Steel S31803 Tube, A789 Duplex S32205 Sch 40 Seamless Tube dimensions and thickness chart, SA 789 TP S32205 Seamless Tube and TP S31803 Duplex Steel DIN 1.4462 Square Tubeprice per meter in India
Duplex Steel S31803 Seamless Tube
S31803 Duplex Seamless Tube
UNS S31803 Seamless Tubes
1.4462 Seamless Tubes
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Duplex Steel S32205 Seamless Tube
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Navrang Steel is a prominent manufacturer, supplier, stockist and exporter of Pipes, Forged Fittings, Fasteners, and other industrial products. We stock and supply all these products in various materials, such as Stainless Steel, Duplex and Super Steel, Nickel Alloy, inconel, monel, hastelloy, and various other ferrous and non-ferrous materials.
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