- sales@ojaspipesandtubes.co.in
- Kolkata, Kolkata
Home > Super Duplex Steel > Super Duplex Steel Instrumentation Tubing
Ojas Pipes and Tubes, a Kolkata, India-based leading manufacturer and supplier of high-quality Super Duplex Steel Instrumentation Tubing, is renowned for its precision engineering and uncompromising quality. With tubing solutions engineered to stand up to the toughest industrial conditions, Ojas is the go-to partner for critical instrumentation applications. Its Super Duplex Steel tubing boasts superior corrosion resistance and unmatched strength, making it the preferred choice in crucial instrumentation applications. With its firm resolve towards customer satisfaction and timely delivery, Ojas Pipes and Tubes is a reliable business partner for industries in need of highly reliable and long-lasting tubing solutions in India and internationally.
Super Duplex Steel Instrumentation Tubing consists mainly of a well-balanced combination of austenitic and ferritic stainless steel, consisting of 22-25% chromium, 4-6% nickel, 3-5% molybdenum, along with trace amounts of nitrogen and manganese. This alloy exhibits good corrosion resistance and strength. Mechanically, it has tensile strength of approximately 850-950 MPa and yield strength close to 550-700 MPa, along with good ductility and toughness. Its duplex microstructure also offers better stress corrosion cracking and pitting resistance against chlorides than typical stainless steels.
| Elements | C | Cr | Cu | Fe | Mo | Mn | N | Ni | P | S | Si | W |
| Minimum | 24.0 | REMAINDER | 3.00 | 0.24 | 6.00 | 0.20 | 0.50 | |||||
| Maximum | 0.030 | 26 | 0.50 | 5.00 | 1.20 | 0.32 | 8.00 | 0.035 | 0.020 | 0.80 | 1.00 |
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum | 550[79.8] |
| Ultimate Tensile Strength (N/mm2) [ksi] minimum | 800 [116] |
| Elongation (%) minimum | 25 |
| ardness (HBN) | 270 max |
| Reduction of Cross Section Area (%) | 45 |
| Charpy V-notch Impact at ambient Temp (J) [ft.lb] | 80min [59min] |
| Charpy V-notch Impact at -46°C (J) [ft.lb] | 45av, 35min [33av, 25.8min] |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Super Duplex Steel Instrumentation Tubes from Ojas Pipes and Tubes ensures superior quality and durability, offering outstanding corrosion resistance and high strength. Our dedication to delivering exceptional service and reliable products guarantees customer satisfaction across a wide range of industrial applications. With our expertise in Super Duplex steel solutions, you can trust us to provide a top-tier, customized piping solution that meets your specific requirements.
Ojas Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Instrumentation Tubing in the Kolkatas, India, offers a wide range of high-quality pipes and tubes designed for various industrial applications. Their extensive inventory and dedication to exceptional service make them a trusted choice for Super Duplex steel products in the region, delivering reliable solutions to meet diverse project requirements.
| Density (Kg.m-1) | 7810 |
| Magnetic Permeability | 33 |
| Young’s Modulus (N/mm2) | 199 x 103 |
| Specific Heat, 20°C (J.Kg-1.°K-1) | 475 |
| Fracture Toughness, Kq (MPa.m) | 475 |
| Specific Electrical Resistance, 20°C (µO.m) | 0.80 |
| Thermal conductivity, 20°C (W.m-1.°K-1) | 14.2 |
| Mean coefficient of thermal expansion, 20-100°C (°K-1) | 11.1 x 10-6 |
Yes, we provide custom sizes for Super Duplex Steel Instrumentation Tubes to meet your specific requirements. At Ojas Pipes and Tubes, our team is dedicated to delivering tailored solutions for all your piping and tubing needs. For more information, please contact us at sales@ojaspipesandtubes.co.in.
Super Duplex Steel Instrumentation Tubing is applied extensively in high-performance tubing demanding industries that need tubing strong enough to resist harsh chemical and corrosive conditions. It is widely used in oil and gas, petrochemical, and chemical plants for instrumentation, control, and hydraulic tubing. The tubing’s high resistance to chloride stress corrosion makes it an ideal material for offshore platforms and seawater service. It is also utilized in power generation, desalination plants, and pulp and paper applications. Its strength and corrosion resistance combination guarantees dependable performance in critical instrumentation applications and maintains safety and operating efficiency in harsh industrial environments.
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