- sales@tunpipes.com
- Naypyidaw, Myanmar
Home > Super Duplex Steel > Super Duplex Steel Boiler Tubing
Tun Pipes, a well-known manufacturer and supplier located in Naypyidaw, Myanmar, has built a solid reputation for providing high-performance Super Duplex Steel Boiler Tubing, specifically designed for tough industrial settings. With a keen emphasis on quality, durability, and precision engineering, the company offers tubing solutions that boast remarkable corrosion resistance, outstanding mechanical strength, and dependable thermal performance. Tun Pipes is committed to ensuring that each product adheres to strict international standards, making its Super Duplex Steel Boiler Tubing perfect for high-pressure and high-temperature applications. With a strong dedication to customer satisfaction, the company serves various industries with reliable tubing solutions that enhance safety, efficiency, and long-term operational reliability.
Super Duplex Steel Boiler Tubing is generally made up of high levels of chromium, molybdenum, and nitrogen, which provide exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking. Its dual-phase microstructure enhances strength and toughness, making it ideal for challenging environments. On a mechanical level, it offers high tensile and yield strength, excellent fatigue resistance, and impressive thermal stability. This combination of properties guarantees reliable performance under elevated pressures and temperatures, making Super Duplex Steel Boiler Tubing a top choice for critical boiler and heat transfer applications.
| 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 Tun 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.
Tun Pipes and Tubes, one of the largest suppliers of Super Duplex Steel Boiler Tubing in the Naypyidaws, Myanmar. 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 Tun 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@tunpipes.com.
This type of tubing is widely utilized across industries that demand superior corrosion resistance and robust mechanical strength in extreme conditions. It’s commonly found in power generation plants, chemical processing facilities, and petrochemical refineries, where it endures high-temperature steam and aggressive media. The tubing also plays a crucial role in marine engineering, offshore platforms, and desalination systems due to its excellent resistance to chloride-rich environments. Furthermore, it supports heat exchangers, boiler systems, and pressure vessels, ensuring long-term efficiency and reliability.
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