Nakamura Stainless, located in Pulau Ujong, Singapore, manufactures and supplies high-quality stainless steel products, including stainless steel 347 tubing. This tubing is known for its excellent corrosion resistance, particularly in high-temperature settings. It is stabilized with niobium to prevent carbide precipitation during welding and heat exposure. Nakamura Stainless provides reliable and durable tubing solutions for industries like chemical processing, aerospace, power generation, and petroleum refining. With consistent performance in tough operating conditions, stainless steel 347 tubing is ideal for systems that need long-lasting strength and corrosion protection.
Stainless steel 347 tubing is an austenitic stainless steel alloy that contains around 17–19% chromium, 9–13% nickel, and niobium for stabilization. The addition of niobium improves resistance to intergranular corrosion and helps prevent sensitization during welding or extended heat exposure. It offers strong mechanical properties, with tensile strength typically between 520 and 750 megapascals. 347 tubing keeps its structural stability and corrosion resistance at temperatures up to 870°C, making it suitable for constant high-heat applications. It also has good formability and weldability, which eases fabrication and installation.
| Specifications | : | ASTM A/ASME SA249/A269/A270 |
| Dimensions | : | ASTM, ASME, and API |
| SS 304H Tubes Size | : | 1/8″NB TO 30″NB IN |
| Thickness | : | 1mm to 20mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10 |
| Finish | : | BA Finish inside and outside, Electropolished finish inside and outside |
| Type | : | Electropolished Pipes & Tubes |
| Form | : | Round, Square, Rectangular, Hydraulic Etc |
| Length | : | Up to 6 meters, custom cut lengths |
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| SS 347 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 20.00 | 10xC – 1.10 | 9.00 – 13.00 | 62.74 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000, MPa – 515 | Psi – 30000, MPa – 205 | 35 % |
Contact us to get a quick quote for your requirement.
We sets high standards regarding quality for stainless steel 347 tubing through multiple testing and evaluation procedures. Inspections are extensive and include determination of chemical compositions, mechanical testing, and testing by non-destruction methods on every product. Nakamura also offers full documentation in the form of Mill Test Certification.
Offering excellent corrosion resistance, Stainless Steel 347 Seamless Tubing is known for its uniformity and strength. It typically comes in sizes ranging from 6mm to 350mm in diameter and lengths of up to 6 meters. Ideal for applications requiring high pressure and corrosive resistance.
Stainless Steel 347 Welded Tubing provides superior resistance to chloride-induced stress corrosion cracking. Available in sizes from 10mm to 150mm in diameter and standard lengths of 6 meters. It is often used in industrial and chemical processing applications where weld strength is critical.
Featuring outstanding corrosion resistance, Stainless Steel 347 Heat Exchanger Tubes are used in demanding environments. Sizes typically range from 6mm to 50mm in diameter, with wall thickness varying from 1mm to 3mm. These tubes are designed for high temperature and pressure conditions.
Stainless Steel 347 Instrumentation Tubing offers excellent resistance to corrosion and is ideal for precise measurement systems. Common sizes include 1/8″ to 1/2″ in diameter and lengths up to 6 meters. It is suitable for high-pressure applications and harsh environments.
With superior resistance to both oxidation and corrosion, Stainless Steel 347 Boiler Tubes are used in high-pressure steam applications. Sizes typically range from 25mm to 100mm in diameter, with lengths of up to 6 meters. They are essential for maintaining efficiency in boiler systems.
Stainless Steel 347 U-tubes provide excellent resistance to corrosive fluids and are commonly used in heat exchangers. Standard sizes range from 10mm to 100mm in diameter with various lengths. They are designed to handle thermal expansion and contraction in dynamic environments.
Stainless Steel 347 Condenser Tubes are used in marine and power generation applications, offering exceptional resistance to seawater and acidic environments. Sizes typically range from 10mm to 50mm in diameter and lengths up to 6 meters, providing durability and efficiency.
Stainless Steel 347 Fin Tubes are designed for enhanced heat transfer and corrosion resistance in air-cooled heat exchangers. They are available in various diameters, commonly 25mm to 50mm, with fin lengths customizable to specific requirements, ensuring effective cooling in challenging environments.
Stainless steel 347 tubing is commonly used in applications where high-temperature corrosion resistance and thermal stability are critical. You can find it in heat exchangers, boiler tubes, superheaters, exhaust manifolds, and chemical processing systems. The tubing is particularly well-suited for welded construction exposed to prolonged heating, as it resists carbide precipitation and maintains its structural integrity. Industries such as oil and gas, aerospace, and power generation depend on 347 tubing for transporting high-temperature fluids and gases, ensuring long-lasting performance in harsh and corrosive settings.
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