- sales@amanpipesandtubes.co.in
- Hyderabad, India
Home > Stainless Steel >Stainless Steel 347 and 347H Instrumentation Tubing
Aman Pipes and Tubes, a well-respected manufacturer and supplier located in Hyderabad, India, specializes in high-quality Stainless Steel 347/347H Instrumentation Tubing. This tubing is crafted for precise fluid and gas control in critical applications. SS 347 is a niobium-stabilized austenitic stainless steel that effectively resists intergranular corrosion, especially after welding. On the other hand, SS 347H, which has a higher carbon content, boosts creep strength and stability at elevated temperatures. These tubing solutions are designed for accuracy, durability, and long-lasting performance in high-pressure and high-temperature settings. Aman Pipes and Tubes adheres to international standards, providing tubing that’s perfect for industries like power generation, chemical processing, oil & gas, and aerospace.
Stainless Steel 347/347H Instrumentation Tubing is made up of Chromium (17–19%), Nickel (9–13%), and Niobium/Tantalum (Nb + Ta ≥ 10xC) for carbide stabilization. SS 347H has a higher Carbon content (0.04–0.10%) compared to SS 347 (≤0.08%), which enhances its strength at high temperatures and creep resistance. These tubes boast a tensile strength of around 515 MPa, yield strength of about 205 MPa, and an elongation of roughly 35%. With outstanding resistance to oxidation and corrosion up to 870°C, this tubing also offers excellent weldability, structural integrity, and pressure resistance, making it ideal for instrumentation systems in demanding environments.
| 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 Aman 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.
Aman Pipes and Tubes, one of the largest suppliers of Stainless Steel 316 and 316L Instrumentation Tubing in Hyderabad, India, 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 Aman Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@amanpipesandtubes.co.in.
Stainless Steel 347/347H Instrumentation Tubing is widely utilized in instrumentation and control systems that require precision, corrosion resistance, and high-temperature performance. Typical applications include impulse lines, chemical injection systems, hydraulic control lines, pressure measurement systems, and flow monitoring setups across industries such as petrochemicals, power plants, offshore oil rigs, and aerospace. SS 347 tubing is particularly suited for environments where frequent welding occurs, while SS 347H is perfect for prolonged exposure to high temperatures.
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