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- Houston , USA
Home > Stainless Steel >Stainless Steel 347 and 347H Instrumentation Tubing
Liam Pipes and Tubes in Houston, USA, is a prominent producer and distributor of Stainless Steel 347 and 347H Welded Tubing that is designed with durability and reliability for challenging applications. With superior resistance to high-temperature oxidation and intergranular corrosion, this tubing finds extensive applications in aerospace, chemical processing, and power generation industries. Our welded tubing is produced with modern technology and high quality standards to provide superior weldability, strength, and long-term performance. Liam Pipes and Tubes strives to supply exceptional stainless steel products with prompt service and tailored options for demanding industrial purposes.
Stainless Steel 347/347H Welded Tubing has 17–19% chromium, 9–13% nickel, and up to 0.45% niobium (columbium), offering increased resistance to intergranular corrosion and oxidation at elevated temperatures. Type 347H provides increased carbon content, enhancing creep strength at high temperatures. The tubing provides strong mechanical performance, such as a tensile strength of 515 MPa and a yield strength of 205 MPa. It provides structural integrity at high pressure and heat, has very good weldability, and resists carbide precipitation—giving it application in demanding uses like boilers, heat exchangers, and pressure vessels under thermal and corrosive conditions.
| 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 Liam 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.
Liam Pipes and Tubes, one of the largest suppliers of Stainless Steel 316 and 316L Instrumentation Tubing in Houston , USA, 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 Liam Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@liampipes.us.
Stainless Steel 347 and 347H Welded Tubing finds widespread application in high-temperature and corrosive conditions in critical industries. It finds applications in heat exchangers, boilers, and pressure vessels, where it provides consistent performance under extended thermal stress. In chemical plants, it resists exposure to corrosive chemicals and high-pressure gases. In aerospace and power generation, it provides structural integrity in hostile environments. Its resistance to intergranular oxidation and corrosion makes it a good fit for carrying hot gases and fluids. The fine weldability and strength of the tubing allow for efficient and safe operation in harsh, long-term service environments.
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