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Home > Stainless Steel >Stainless Steel 347 and 347H Instrumentation Tubing
As a trusted manufacturer and supplier based in Kinshasa, Congo, Wissa Pipes stands as a key partner for industries requiring precision and reliability. Our expertise is especially evident in our Stainless Steel 347/347H Instrumentation Tubing, a product engineered for the most demanding environments. We understand that the integrity of your fluid and gas transfer systems is paramount, which is why we provide tubing solutions that deliver exceptional performance and longevity, directly supporting the robust industrial growth across the region and beyond.
This specific grade is stabilized with niobium, which gives it a distinct advantage by resisting intergranular corrosion following exposure to high temperatures. This composition results in superior mechanical properties, including excellent strength and oxidation resistance at elevated temperatures. The “H” variant is specially processed to achieve higher high-temperature strength, ensuring the tubing can withstand sustained stress and thermal cycling without compromising its structural integrity or performance.
| 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 Wissa 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.
Wissa Pipes and Tubes, one of the largest suppliers of Stainless Steel 316 and 316L Instrumentation Tubing in Kinshasa, Thailand, 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 Wissa Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@wissapipes.com.
You’ll find Stainless Steel 347 and 347H Instrumentation Tubing widely used across the chemical, petrochemical, and power generation sectors, where precise control of fluids and gases is essential. It’s commonly found in instrumentation panels, control lines, heat exchangers, and boiler systems. In the oil and gas industry, it’s utilized in both offshore and onshore facilities that demand resistance to corrosive conditions. Additionally, aerospace, marine, and pharmaceutical sectors rely on this tubing for accurate fluid transfer and measurement systems. Its strength, stability, and corrosion resistance make it a go-to choice for challenging instrumentation applications.
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