- sales@irfanpipes.com
- Istanbul, İzmir
Home > Super Duplex Steel > Super Duplex Steel Boiler Tubing
Irfan Pipes and Tubes, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of Super Duplex Steel Boiler Tubing, designed specifically for high-temperature, high-pressure, and corrosive settings. With a strong focus on precision manufacturing and adherence to international quality standards, the company provides boiler tubing solutions that boast exceptional durability, corrosion resistance, and mechanical strength. Catering to sectors like power generation, petrochemical, and marine engineering, Irfan Pipes and Tubes is dedicated to delivering reliable and long-lasting tubing solutions. Their Super Duplex boiler tubing is renowned for its superior performance, efficiency, and safety in some of the toughest industrial applications.
Super Duplex Steel Boiler Tubing from Irfan Pipes and Tubes is generally crafted from UNS S32750 or S32760 grades, featuring a well-balanced dual-phase microstructure (austenitic-ferritic). The chemical makeup includes around 25% chromium, 6–8% nickel, 3–5% molybdenum, and added nitrogen, which together provide excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. It boasts impressive mechanical strength, with a tensile strength ranging from 800 to 850 MPa and a yield strength of about 550 MPa. This tubing maintains its structural integrity even under high temperatures and pressures, making it perfect for critical boiler systems in corrosive and thermally demanding 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 Irfan 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.
Irfan Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Boiler Tubing in the Istanbuls, Turkey. 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 Irfan 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@irfanpipes.com.
Super Duplex Steel Boiler Tubing from Irfan Pipes and Tubes is perfect for high-efficiency heat transfer and fluid transport in extreme operating conditions. In the power generation sector, it’s utilized in high-pressure boilers, heat exchangers, and superheaters where strength and corrosion resistance are crucial. The petrochemical industry depends on it for steam and process heating systems that face aggressive chemicals. In marine engineering, it’s trusted for its reliability and performance in challenging environments.
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