- sales@amanpipesandtubes.co.in
- Hyderabad, India
Home > Stainless Steel > Stainless Steel 321 and 321H Instrumentation Tubing
Aman Pipes and Tubes, a well-respected name in the stainless steel sector located in Hyderabad, India, specializes in high-quality Stainless Steel 321/321H Instrumentation Tubing designed for precision control and fluid transfer systems. SS 321 is a titanium-stabilized austenitic stainless steel known for its outstanding resistance to intergranular corrosion, especially after welding. The high-carbon variant, SS 321H, offers improved creep strength and stability at high temperatures. These tubes are crafted with tight tolerances and exceptional dimensional accuracy, making them perfect for instrumentation systems across industries like petrochemical, pharmaceutical, aerospace, and power generation. Aman guarantees reliability, corrosion resistance, and long-lasting performance even in extreme conditions.
Stainless Steel 321/321H Instrumentation Tubing consists of Chromium (17–19%), Nickel (9–12%), and Titanium (at least 5xC%) for carbide stabilization. SS 321H has a higher Carbon content (0.04–0.10%) compared to SS 321 (≤0.08%), which enhances its high-temperature strength and creep resistance. Typically, these tubes exhibit a tensile strength of about 515 MPa, a yield strength of 205 MPa, and an elongation of 35%. They can handle service temperatures up to 870°C, boast excellent weldability and formability, and perform reliably in corrosive and oxidizing environments, making them ideal for precise fluid delivery systems.
| 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 Aman 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.
Aman Pipes and Tubes, one of the largest suppliers of Stainless Steel 321 and 321H Instrumentation Tubing in Hyderabad, India, 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 Aman Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@amanpipesandtubes.co.in.
Stainless Steel 321/321H Instrumentation Tubing is extensively utilized in precision fluid and gas control applications where corrosion resistance and temperature stability are crucial. Common uses include instrumentation panels, impulse lines, measurement devices, chemical injection systems, and hydraulic and pneumatic systems in power plants, offshore platforms, oil refineries, and aerospace engines. SS 321 tubing is favored in environments where welding and intergranular corrosion are concerns, while SS 321H is particularly suited for applications requiring enhanced high-temperature performance.
©2024 Aman Pipes and Tubes . All Rights Reserved.
