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- Muscat, OMAN
Home > Stainless Steel >Stainless Steel 347 and 347H Instrumentation Tubing
Laila Pipes and Tubes, based in Muscat, Oman, stands out as a trusted manufacturer and supplier of Stainless Steel 347 and 347H Instrumentation Tubing, designed to meet the demanding needs of today’s industrial systems. The company prides itself on delivering tubing that is precision-engineered, boasting excellent dimensional accuracy, a smooth surface finish, and consistent quality. With cutting-edge manufacturing techniques and rigorous quality control measures in place, Laila Pipes and Tubes guarantees products that align with international standards. Their commitment to customer satisfaction, prompt deliveries, and technical know-how makes them a go-to partner for projects in the oil and gas, petrochemical, power, and process industries.
Stainless Steel 347 and 347H are stabilized austenitic alloys enriched with chromium and nickel, with niobium added to enhance resistance to intergranular corrosion. The 347H grade, in particular, has a higher carbon content, which boosts its strength at elevated temperatures. These materials are known for their impressive tensile and yield strength, excellent ductility, and dependable performance under thermal and pressure stress. They also provide good creep resistance and maintain mechanical stability in high-temperature instrumentation 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 Laila 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.
Laila Pipes and Tubes, one of the largest suppliers of Stainless Steel 316 and 316L Instrumentation Tubing in Muscat, OMAN, 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 Laila Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@lailapipes.com.
You’ll find Stainless Steel 347 and 347H Instrumentation Tubing commonly used in impulse lines, control lines, and pressure measurement systems where reliability is key. It’s widely utilized in oil and gas refineries, petrochemical plants, and power generation facilities, especially in high-temperature steam and process services. These grades are also ideal for chemical processing, fertilizer plants, and offshore installations, thanks to their resistance to oxidation, durability against corrosion, and long service life in challenging operating conditions.
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