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Home > Stainless Steel >Stainless Steel 347 and 347H Instrumentation Tubing
Tun Pipes is proud to be a trusted manufacturer and supplier based in the heart of Naypyidaw, Myanmar, specializing in high-performance instrumentation solutions. We understand the critical demands of modern industry, which is why our Stainless Steel 347/347H Instrumentation Tubing is produced with meticulous attention to detail. This product is engineered for reliability in challenging environments, offering exceptional resistance to corrosion and high temperatures, making it an ideal choice for the precise and safe conveyance of fluids and gases in your most demanding applications.
The strength of this particular stainless steel lies in its thoughtful composition, which is stabilized with columbium to effectively resist intergranular corrosion following exposure to high temperatures. This chemistry gives the tubing its robust mechanical character, including excellent tensile strength and superior creep resistance, allowing it to maintain integrity under sustained loads at elevated temperatures. These properties ensure that the tubing performs consistently and safely, even when subjected to the intense heat and pressure common in processing 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 Tun 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.
Tun Pipes and Tubes, one of the largest suppliers of Stainless Steel 316 and 316L Instrumentation Tubing in Naypyidaw, Myanmar, 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 Tun Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@tunpipes.com.
Stainless Steel 347 and 347H Instrumentation Tubing is utilized in control lines, measurement devices, pressure instrumentation, and hydraulic or pneumatic installations under exposure to heat and corrosive fluids. Grade 347 is ideally used in welded assemblies where carbide precipitation should be prevented, whereas 347H is used for continuous service under elevated pressure and temperature. The grades provide long-term stability, corrosion resistance, and stable performance in the instrumentation system where accuracy and reliability are necessary in harsh conditions.
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