- sales@tunpipes.com
- Naypyidaw, Myanmar
Home > Stainless Steel > Stainless Steel 321 and 321H Instrumentation Tubing
Based in the heart of Naypyidaw, Tun Pipes has built a strong reputation for precision and reliability in the industrial supply sector. We take pride in being a trusted local source for high-performance materials, specializing in Stainless Steel 321/321H Instrumentation Tubing. This grade is specifically chosen for its exceptional ability to handle demanding environments, making it an ideal solution for complex and critical applications. Our commitment is to provide our clients in Myanmar and beyond with tubing that not only meets but exceeds the rigorous standards required for sensitive instrumentation and process systems.
The strength of 321/321H tubing begins with its unique composition, which is stabilized with titanium to significantly reduce the risk of carbide precipitation during welding and exposure to high temperatures. This fundamental characteristic ensures that the material maintains its excellent corrosion resistance even after fabrication. The “H” variant offers higher carbon content, providing enhanced high-temperature strength. This combination of chemistry results in a material that is not only tough and durable but also reliably resistant to a wide range of corrosive elements, making it a consistently dependable choice.
| Grade | Range | Ni | Cr | P | Fe | C | Mn | N | Si | S | Ti |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 321 | Min. | 9.0 | 17.0 | 0 | 65.045 | – | – | – | – | – | – |
| Max. | 12.0 | 19.0 | 0.045 | – | 0.08 | 2.0 | 0.10 | 1.0 | 0.030 | 5(C+N) -0.70 | |
| 321H | Min. | 9.0 | 17.0 | – | 65.25 | 0.04 | – | – | – | – | – |
| Max. | 12.0 | 19.0 | 0.045 | 0.010 | 2.00 | 0.10 | 1.00 | 0.030 | 4(C+N) -0.70 |
| 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) | ||||
| 321/321h | 515 | 205 | 217 | 95 | 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 321 and 321H 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 321 and 321H 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 | |||||
| 321 | S32100 | 321S31 | X6CrNiTi18-10 | 1.4541 | – | SUS 321 | 2337 | – |
| 321h | S32109 | 321S51 | X10CrNiTi18-10 | 1.4878 | – | SUS 321h | – | – |
Yes, we offer custom sizes for Stainless Steel 321 and 321H 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.
321 and 321H Stainless Steel Instrumentation Tubing is extensively applied in precise measurement and durable performance under severe conditions such as control systems, hydraulic lines, pneumatic systems, and instrumentation in high-temperature power plants and refineries. Titanium stabilization and the higher content of carbon provide long-term use, thermal fatigue resistance, and corrosion resistance. They are a reliable solution for instrumentation tubing where accuracy, strength, and thermal and chemical stress resistance are essential.
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