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Home > Stainless Steel > Stainless Steel 347/347H Heat Exchanger Tubing
Iris Pipes and Tubes, located in Cairo, Egypt, stands out as a leading manufacturer and supplier of **Stainless Steel 347/347H Heat Exchanger Tubing**. They specialize in providing top-notch tubing solutions that are specifically designed to handle high temperatures and corrosive environments. The company has built a solid reputation thanks to its cutting-edge manufacturing processes, rigorous quality control, and commitment to international standards. **Stainless Steel 347/347H Heat Exchanger Tubing** is known for its remarkable resistance to intergranular corrosion, oxidation, and scaling, making it a reliable choice for demanding industrial applications. Iris Pipes and Tubes caters to a diverse array of industries, including petrochemical, power generation, chemical processing, marine, and oil and gas.
Stainless Steel 347/347H Heat Exchanger Tubing primarily consists of iron, chromium (17-19%), nickel (9-12%), and niobium (10 times carbon content), enhancing its corrosion resistance and thermal stability. The mechanical properties include high tensile strength (up to 620 MPa for 347H) and excellent ductility, making it suitable for high-temperature applications. The advantages of this tubing include exceptional resistance to intergranular corrosion, stress corrosion cracking, and oxidation at elevated temperatures, making it ideal for use in heat exchangers, boilers, and other demanding environments.
Range : 10 mm OD to 50.8 mm OD
Outer Diameter : 6.00 mm to 101.60 mm
Wall Thickness : 0.70 mm to 8.00 mm
Length : up to 20 m (65.62 ft) Length & Customed Required Length
Specifications : ASTM A 213, A 268, A 269, A 789, Equivalent to ASME, EN, JIS Etc.
| Element | SS 347 | SS 347H |
| C | 0.08 max | 0.04 – 0.10 |
| Mn | 2.0 max | 2.0 max |
| Si | 1.0 max | 1.0 max |
| P | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max |
| Cr | 17.00 – 20.00 | 17.00 – 19.00 |
| N | 10xC – 1.10 | 8xC – 1.10 |
| Ni | 9.00 – 13.00 | 9.0 -13.0 |
| Ti | 62.74 min | 63.72 min |
| Element | SS 347 | SS 347H |
| Density | 8.0 g/cm3 | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 | Psi – 30000 , MPa – 205 |
| Elongation | 35 % | 35 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
This type of tubing is made from niobium-stabilized austenitic stainless steel, which contains about 17–19% chromium, 9–13% nickel, along with small amounts of niobium and tantalum to prevent carbide precipitation. The 347H variant features a higher carbon content, enhancing its strength at elevated temperatures and its resistance to creep. Both grades boast impressive mechanical properties, such as high tensile and yield strength, good ductility, and exceptional oxidation resistance up to 900°C. Their unique chemical makeup ensures they are easy to weld and form, while also promising long-lasting performance in high-temperature and chemically aggressive settings.
Iris Pipes and Tubes, one of the largest suppliers of Stainless Steel 347/347H Heat Exchanger Tubing in Alexandria, Egypt, 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 347/347H Heat Exchanger Tubing** is commonly utilized in situations that demand durability, corrosion resistance, and effective heat transfer. Typical applications include condensers, boilers, superheaters, chemical processing units, and refinery heat exchangers. These tubes are particularly well-suited for industries like petrochemical, power generation, and marine engineering, where thermal cycling and oxidizing conditions are common. Their outstanding resistance to scaling and intergranular corrosion guarantees a longer service life, lower maintenance needs, and consistent performance in high-temperature, high-pressure situations.
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
| SS 347H | 1.4878 | S34709 | SUS 347H | – | X6CrNiNb18-12 |
Stainless Steel 347/347H Heat Exchanger Tubing is widely used in various industries due to its excellent corrosion resistance and high-temperature stability. Common applications include chemical processing, petrochemical, and oil and gas industries, where resistance to intergranular corrosion is critical. This tubing is also ideal for heat exchangers, boilers, and pressure vessels operating in elevated temperatures. Its durability and reliability make it suitable for environments with harsh conditions, ensuring long-lasting performance and efficiency in heat transfer processes across multiple applications.
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