- sales@liampipes.us
- Houston , USA
Home > Stainless Steel > Stainless Steel 321 and 321H Instrumentation Tubing
Liam Pipes and Tubes, Houston, USA, is a renowned supplier and manufacturer of premium Stainless Steel 321 and 321H Instrumentation Tubing. These tubing products are designed for superior performance in corrosive and high-temperature conditions to provide reliable operation in critical applications. Our products are known for precision and consistency and comply with the highest industry standards and are ideal for rigorous industries like aerospace, chemical processing, and oil and gas. Committed to the satisfaction of customers, Liam Pipes & Tubes supplies tailored stainless steel solutions aimed at enhancing durability, system precision, and long-term performance in different industrial applications.
Stainless Steel 321 and 321H Instrumentation Tubing contains mainly 18–20% chromium and 9–12% nickel, with titanium being added to stabilize the alloy and hinder carbide precipitation upon welding. The 321H grade has higher carbon content, enhancing strength at high temperatures. These alloys provide outstanding mechanical properties, such as tensile strength to 750 MPa, with a fine combination of ductility and weldability. They possess excellent corrosion and oxidation resistance, particularly in acid and high-temperature conditions, and can thus be applied to pressure control systems, pipeline applications at high temperatures, and structural uses in critical industrial conditions.
| 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 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 321 and 321H 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 | |||||
| 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 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 321 and 321H Instrumentation Tubing is utilized extensively in industries that require good corrosion resistance and thermal stability. Principal applications cover aerospace systems, chemical processing equipment, oil and gas pipelines, and medical instruments, where high-temperature and aggressive conditions are the norm. The tubes are well suited for use in heat exchangers, automotive exhaust systems, and power generation units, where fluid measurement and control are precise. Their resistance to thermal cycling also positions them for nuclear energy and fuel processing applications. With consistent performance under stress, this tubing provides accuracy, durability, and safety in sophisticated instrumentation applications.
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