- sales@samiapipes.com
- Tunis, Tunisia
Home > Super Duplex Steel > Super Duplex Steel Boiler Tubing
Samia Pipes and Tubes is a trusted manufacturer and supplier located in Tunis, Tunisia, specializing in high-quality Super Duplex Steel Boiler Tubing designed for tough thermal and pressure applications. The company boasts state-of-the-art manufacturing facilities, cutting-edge testing equipment, and a team of skilled professionals dedicated to ensuring top-notch product quality. Samia Pipes and Tubes is committed to delivering boiler tubing that not only meets international standards but also performs reliably under high temperature and pressure conditions. With a strong focus on precision, durability, and customer satisfaction, they offer tailored solutions, competitive pricing, timely delivery, and dependable technical support to clients in the global power, energy, and process industries.
Super Duplex Steel Boiler Tubing features a well-balanced austenitic and ferritic microstructure, which provides outstanding strength and resistance to corrosion. Its chemical makeup typically includes high levels of chromium, appropriate amounts of nickel, molybdenum, and controlled nitrogen content to boost its resistance to pitting and oxidation. On the mechanical side, this tubing delivers high yield and tensile strength, good creep resistance, and remarkable toughness. It maintains its structural integrity even under elevated temperatures and pressures, resists stress corrosion cracking, and ensures reliable long-term performance in the harsh environments typical of boiler and heat transfer systems.
| 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 Samia 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 Duplex steel solutions, you can trust us to provide a top-tier, customized piping solution that meets your specific requirements.
Samia Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Boiler Tubing in the Tuniss, Tunisia. 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 Samia 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@samiapipes.com.
Super Duplex Steel Boiler Tubing is extensively utilized in high-temperature and high-pressure applications across a variety of industries. You’ll commonly find it in boilers, superheaters, economizers, and heat exchangers within power generation plants. It’s also used in oil and gas refineries, chemical processing units, and petrochemical facilities where thermal efficiency and corrosion resistance are paramount. The tubing’s ability to endure extreme operating conditions makes it ideal for desalination plants, marine boilers, and industrial heating systems. Additional applications include waste heat recovery units and more.
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