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Home > Stainless Steel > Stainless Steel 347 and 347H Electropolished Pipes
Iris Pipes and Tubes, based in Cairo, Egypt, has built a solid reputation as a reliable manufacturer and supplier of **Stainless Steel 347 and 347H Electropolished Pipes**. These pipes are crafted to deliver top-notch quality, ensuring exceptional corrosion resistance, strength, and a flawless surface finish. The company prides itself on its dedication to precision manufacturing, cutting-edge production techniques, and strict adherence to international standards. **Stainless Steel 347 and 347H Electropolished Pipes** are perfect for high-temperature applications, offering not just performance but also a clean and attractive appearance. With a strong emphasis on quality, durability, and customer satisfaction, Iris Pipes and Tubes serves a variety of industries, including petrochemical, pharmaceutical, food processing, power generation, and marine engineering.
Stainless Steel 347 and 347H Electropolished Pipes are made of austenitic steel containing chromium (17-20%), nickel (9-13%), and niobium for stabilization The main difference is that 347H has a higher carbon content, which increases its strength increases with increasing temperature. These pipes offer excellent corrosion resistance, especially in high humidity environments, and have excellent mechanical properties such as tensile strength, tensile strength, and stability as well as where cleanliness is important.
| Specifications | : | ASTM A/ASME SA249/A269/A270 |
| Dimensions | : | ASTM, ASME, and API |
| SS 347 and 347H Pipes 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 |
| SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 8xC – 1.10 | 9.0 -13.0 | 63.72 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 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These **Stainless Steel 347 and 347H Electropolished Pipes** are niobium-stabilized austenitic stainless steels, featuring around 17–19% chromium, 9–13% nickel, along with trace amounts of niobium and tantalum to boost their resistance to intergranular corrosion. The 347H variant, with its higher carbon content, enhances creep strength and high-temperature performance. Both grades excel in oxidation resistance up to 900°C, showcasing impressive tensile and yield strength, along with remarkable ductility. The electropolished surface not only provides a sleek, mirror-like finish but also improves corrosion resistance, minimizes contamination risks, and guarantees optimal performance in clean or hygienic settings.
Iris Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H Electropolished Pipes in Alexandria, Egypt, offers a comprehensive range of high-quality pipes and tubing suitable for various industrial applications. Our extensive inventory and commitment to exceptional service make us a trusted choice for regional products.
| STANDARD | WERKSTOFF NR. | UNS | JIS | GOST | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | 08Ch18N12B | X6CrNiNb18-10 |
| SS 347H | 1.4961 | S34709 | SUS 347H | – | X6CrNiNb18-12 |
You’ll find **Stainless Steel 347 and 347H Electropolished Pipes** widely utilized in sectors where high-temperature strength, corrosion resistance, and surface purity are paramount. They’re commonly found in heat exchangers, boiler components, chemical processing systems, exhaust manifolds, and instrumentation lines. The electropolished finish makes these pipes particularly suitable for the pharmaceutical, biotechnology, and food processing industries, where hygiene and cleanliness are non-negotiable. Additionally, they’re employed in refineries, power plants, and marine environments, thanks to their outstanding durability and performance.
Stainless Steel 347 and 347H Electropolished Pipes are widely used in high temperature applications due to corrosion resistance and excellent strength Common applications include chemical process industry for handling corrosives, petrochemical plants for transportation of fuels and chemicals, steam line and heat exchanger power generation For aerospace components requiring high temperature resistance Also used in s sector and food processing and pharmaceuticals. In applications where hygiene and sanitation are of the utmost importance, their smooth surface reduces bacterial growth, making them ideal for detergents.
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