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Home > Stainless Steel Tubing > Stainless Steel 347 Tubing
Blundell Pipes and Tubes, located in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 347 Tubing. Renowned for its precision engineering and durability, the company produces tubing that excels in resisting intergranular corrosion and performs reliably even at high temperatures. With cutting-edge manufacturing techniques and rigorous quality control, Blundell Pipes and Tubes guarantees that each product adheres to international standards. Stainless Steel 347 Tubing is perfect for demanding applications in the petrochemical, power generation, aerospace, and chemical sectors, offering long-lasting, heat-resistant, and corrosion-resistant solutions for critical systems and industrial operations.
Stainless Steel 347 Tubing is an austenitic stainless steel with a composition of 17–20% chromium, 9–13% nickel, and columbium (niobium) stabilization for resistance to intergranular corrosion. The stabilization prevents carbide precipitation on exposure to welding and high temperatures. The tubing provides a tensile strength of 515–750 MPa and yield strength of approximately 205 MPa. It has great mechanical properties and resistance to oxidation in environments up to 870°C and, therefore, is used best in systems that are cycled through repeated heating and cooling or pressure cycles.
| SS 347 | 0.04 – 0.10 | 2 max | 1 max | 0.045 max | 0.030 max | 17 – 19 | 0.10 max | 9 – 12 | 4(C+N) – 0.70 max |
| SS 347 | 1.4961 | S34709 | SUS 347 | X12CrNiTi18-9 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
This tubing is primarily made up of iron, chromium, nickel, and niobium, with a carefully controlled carbon content to boost its performance at high temperatures. Niobium plays a key role in stabilizing the steel, preventing the formation of chromium carbide and enhancing its resistance to intergranular corrosion. On the mechanical side, 347 tubing boasts impressive tensile and yield strength, toughness, and exceptional creep resistance when exposed to elevated temperatures. It also offers good weldability, oxidation resistance, and thermal stability, making it an excellent choice for industrial applications that demand long-term durability under heat, pressure, and corrosive conditions.
Blundell Pipes and Tubes, one of the largest suppliers of Stainless Steel 347 Tubing in Hamilton, New Zealand, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
Stainless Steel 347 Tubing finds its place in various industries that require heat-resistant and corrosion-resistant piping solutions. It’s commonly used in boilers, heat exchangers, superheaters, and chemical processing equipment. The petrochemical and power generation industries rely on 347 tubing for steam lines, furnace components, and high-temperature process pipelines. In aerospace and marine applications, it’s trusted for transporting high-temperature fluids and for structural uses. Moreover, it’s well-suited for systems that experience thermal cycling and oxidizing environments, making it a versatile choice for many critical applications.
347 Stainless Steel Tubing finds extensive application where there is continuous or cyclic exposure to elevated temperatures in equipment such as heat exchangers, superheaters, furnace components, exhaust systems, and pressure piping. It is particularly ideal for welded parts and structures within the petrochemical and chemical industry where intergranular corrosion and thermal fatigue resistance are important. The tubing is also utilized in aerospace and refinery applications requiring weldability, corrosion resistance, and durability. Stainless Steel 347 Tubing offers a reliable solution for long-term service in severe environments where strength and stability are necessary.
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