Home > Stainless Steel > Stainless Steel 347 and 347H Electropolished Pipes
Stainless Steel 347 and 347H Electropolished Pipes are high-performance, stabilized stainless steel piping solutions designed for environments where superior corrosion resistance, cleanliness, and heat stability are essential. Alloyed with niobium to prevent carbide precipitation, these grades offer outstanding reliability during high-temperature service. The electropolished finish enhances durability by creating a smooth, contaminant-free surface that improves fluid flow and resists corrosion more effectively. Because of their exceptional strength, precision, and hygienic properties, 347/347H electropolished pipes are widely used across chemical plants, pharmaceutical systems, food processing lines, refineries, and thermal processing applications requiring consistent, long-term performance.
Stainless Steel 347 and 347H Electropolished Pipes contain chromium (17–19%), nickel (9–13%), and niobium for stabilization against intergranular corrosion. Grade 347H features higher carbon content, providing improved strength at elevated temperatures. Both grades exhibit excellent resistance to oxidation up to 900°C and maintain structural stability under thermal cycling. Electropolishing reduces surface roughness, enhances the passive layer, and ensures minimal contamination absorption. These properties deliver high tensile strength, superior corrosion resistance, and dependable performance in aggressive or high-temperature environments, making them ideal for clean, demanding industrial processes.
| 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.
Choosing Stainless Steel 347 and 347H Electropolished Pipes from Rashdan Pipes and Tubes guarantees excellent corrosion resistance, high strength, and durability. Designed for diverse industrial applications, it delivers reliable performance in tough environments while maintaining competitive pricing for cost-effective solutions.
Rashdan Pipes and Tubes, a leading manufacturer and supplier of Stainless Steel 347 and 347H Electropolished Pipes in Amman, Jordan, 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 |
We offer custom sizes for Stainless Steel 347 and 347H Electropolished Pipes to meet your specific needs. Our dedicated team at Rashdan Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@rashdanpipes.com.
Stainless Steel 347 and 347H Electropolished Pipes are widely used in industries requiring clean, corrosion-resistant, and high-temperature-capable piping. Common applications include chemical processing equipment, pharmaceutical production lines, heat exchangers, steam service, refinery heaters, and components exposed to continuous or cyclic thermal conditions. Their electropolished surface ensures reduced contamination risks, smooth flow characteristics, and high hygienic standards, making them suitable for food, beverage, and bioprocessing systems. These pipes are also used in aerospace systems, exhaust manifolds, furnace parts, and petrochemical plants where long-term stability and purity are essential for safe and efficient operation.
©2024 Rashdan Pipes and Tubes . All Rights Reserved.