- sales@impextubeind.com
- Mumbai, India
Home > Super Duplex Steel > Super Duplex Steel Boiler Tubing
Impex Tube India is a prominent maker and seller of high–quality pipes and tubes in Mumbai, India, with a strong focus on Super Duplex Steel Tubing. It is renowned for providing high-performance tubing solutions that satisfy the stringent needs of industries working in highly corrosive and high-pressure conditions. With state-of-the-art production methods and a rigorous emphasis on quality control, Impex Tube India guarantees reliability, durability, and accuracy in each product. Their Super Duplex Steel Tubing is relied upon by many industries for its superior strength, corrosion resistance, and capacity to function in the most demanding industrial processes.
Super Duplex Steel Tubing is produced from highly advanced stainless steel grades like UNS S32750 and S32760, having around 25% chromium, 7% nickel, 4% molybdenum, and nitrogen. Such a composition creates a two-phase microstructure of austenite and ferrite, providing exceptional mechanical properties and corrosion resistance. The tubing shows high tensile strength (up to 800 MPa), good fatigue strength, and favorable weldability. It is extremely resistant to crevice corrosion, pitting, and stress corrosion cracking, and thus it can be used in extreme conditions. Its strength and durability make it a good choice for structural and fluid handling applications in different high-stress environments.
| Specifications | ASTM A789 ASME SA789 |
| Dimensions | ASTM, ASME and API |
| Tube Size | 1/2″NB TO 12 “NB IN |
| Specialized in | Large Diameter Size |
| Schedule | SCH20, SCH30, SCH40, STD, SCH80 |
| Type | Fire Boiler Tubing/ Hot Rolled Boiler Tube/ Heat Expansion Boiler Tube/ IBR Seamless Boiler Tubes |
| Material | Super Duplex Steel |
|---|---|
| Carbon (C) Max. | 0.030 |
| Manganese (Mn) Max. | 1.20 |
| Phosphorous (P) Max. | 0.035 |
| Sulphur (S) Max. | 0.020 |
| Silicon (Si) Max. | 0.80 |
| Chromium (Cr) | 24.0–26.0 |
| Nickel (Ni) | 6.0–8.0 |
| Molybdenum (Mo) | 3.0–5.0 |
| Nitrogen (N) | 0.24–0.32 |
| Iron (Fe) | Bal. |
| Copper (Cu) | 0.50 |
| Other Elements | — |
| Tensile Strength | Yield Strength | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy | UNS Designation | Spec. | psi | MPa | ksi | psi | MPa | ksi | Elongation in 2 in. (min.) % | Grain Size Req. | Max. Hardness | Modulus of Elasticity (x106psi) | Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) | Thermal Conductivity (BTU-in/ ft2-h-°F) |
| Super Duplex | – | A789, A790 | 100,000 | 690 | 100 | 70,000 | 485 | 70 | 20 | — | 30.5 Rc | — | — | — |
| Super Duplex | – | A789, A790 | 116,000 | 800 | 116 | 80,000 | 550 | 80 | 15 | — | 32 Rc | 27.5 | 7.2 | |
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 Boiler Tubing from Impex Tube India 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 Duplex steel solutions, you can trust us to provide a top-tier, customized piping solution that meets your specific requirements.
Impex Tube India, one of the largest suppliers of Super Duplex Steel Boiler Tubing in the Mumbais, 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.
Yes, we provide custom sizes for Super Duplex Steel Boiler Tubing to meet your specific requirements. At Impex Tube India, our team is dedicated to delivering tailored solutions for all your piping and tubing needs. For more information, please contact us at sales@impextubeind.com.
Super Duplex Steel Tubing finds extensive application in industries requiring a combination of superior strength and superior corrosion resistance. It is utilized in offshore platforms, subsea hardware, and pipeline facilities in the oil and gas field where exposure to aggressive environments prevails. It assists in transporting aggressive fluids securely in the petrochemical and chemical industries. It finds its applications in power generation plants, desalination plants, marine installations, as well as in heat exchangers. Due to its ability to resist high pressure, corrosive media, and harsh temperatures, Super Duplex Steel Tubing is perfect for essential systems that need long-term, trouble-free performance under demanding operating conditions.
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