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Home > Stainless Steel >Stainless Steel 347 and 347H Instrumentation Tubing
Irfan Pipes and Tubes, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of **Stainless Steel 347 and 347H Instrumentation Tubing**. They specialize in providing high-quality tubing solutions for industries that demand outstanding corrosion resistance and performance at high temperatures. With state-of-the-art production facilities and rigorous quality control measures, the company is committed to delivering tubing that guarantees durability, reliability, and long-lasting service in critical applications. You’ll find Stainless Steel 347 and 347H Instrumentation Tubing widely utilized in sectors like chemical, petrochemical, power generation, and aerospace. Irfan Pipes and Tubes prides itself on timely deliveries and customer satisfaction, making them a trusted partner for precision industrial instrumentation.
Stainless Steel 347 and 347H Instrumentation Tubing are austenitic stainless steels that typically contain around 17–19% chromium, 9–13% nickel, and are stabilized with niobium. The 347H variant has a higher carbon content, which boosts its strength at elevated temperatures. These alloys are known for their excellent resistance to intergranular corrosion, oxidation, and scaling, especially under high-temperature conditions. They also showcase high tensile strength, good toughness, and dimensional stability, all while maintaining ductility and formability. The niobium stabilization not only enhances weldability but also improves creep resistance, making 347 and 347H Instrumentation Tubing perfect for high-pressure, high-temperature, and corrosive industrial applications.
| Grade | Range | Ni | C | Cr | Mn | Si | P | S |
|---|---|---|---|---|---|---|---|---|
| 347 | Min. | 9.0 | – | 17.0 | – | – | – | – |
| Max. | 13.0 | 0.08 | 20.0 | 2.00 | 1.00 | 0.040 | 0.030 | |
| 347H | Min. | 9.0 | 0.04 | 17.0 | – | – | – | – |
| Max. | 13.0 | 0.10 | 19.0 | 2.00 | 1.00 | 0.045 | 0.030 |
| Grade | Tensile Strength min (MPa) | Yield Strength 0.2% Proof min (MPa) | Hardness | Elongation (% in 50mm) min | |
|---|---|---|---|---|---|
| Brinell max (HB) | Rockwell B max (HR B) | ||||
| 347/347h | 515 | 205 | 201 | 92 | 40% |
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 Instrumentation Tubing from Irfan Pipes and Tubes ensures high quality and durability, as these pipes offer excellent corrosion resistance and strength. Our commitment to exceptional service and reliable delivery guarantees customer satisfaction across various industrial applications. Our expertise in stainless steel products ensures you receive a top-tier solution tailored to your needs.
Irfan Pipes and Tubes, one of the largest suppliers of Stainless Steel 316 and 316L Instrumentation Tubing in Istanbul, Turkey, 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.
| Grade | UNS No | Old British | Euronorm | Japanese JIS | Swedish SS | GOST | ||
|---|---|---|---|---|---|---|---|---|
| BS | En | No | Name | |||||
| 347 | S34700 | 347S31 | – | 1.4550 | X6CrNiNb18-10 | SUS 347 | 2338 | 08Ch18N12B |
| 347h | S34709 | – | – | 1.4961 | – | SUS 347h | – | – |
Yes, we offer custom sizes for Stainless Steel 347 and 347H Instrumentation Tubing to meet your specific requirements. Our team at Irfan Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@irfanpipes.com.
In various industries that require precise, corrosion-resistant, and durable tubing solutions, Stainless Steel 347 and 347H Instrumentation Tubing is a go-to choice. In chemical and petrochemical plants, it’s commonly used for instrumentation lines, control systems, and process monitoring equipment that are exposed to high temperatures or corrosive media. The power generation sector utilizes it for boiler instrumentation, superheater connections, and thermal monitoring systems. Meanwhile, the aerospace and marine industries depend on it for critical control and hydraulic systems.
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