- sales@davidpipes.com
- Canberra, Australia
Home > Stainless Steel > Stainless Steel 321/321H Seamless Tubing
David Pipes and Tubes is a reputable manufacturer and supplier of stainless steel 321/321H seamless tubing, proudly based in Canberra, Australia. This company focuses on crafting top-notch seamless tubing that excels in high-temperature and corrosive settings. The stainless steel 321/321H seamless tubing is fortified with titanium, which helps prevent carbide precipitation during welding or extended exposure to high temperatures, ensuring it remains durable, resistant to corrosion, and has a long service life. With a commitment to precision engineering and strict adherence to international standards, David Pipes and Tubes delivers seamless tubing that’s perfect for applications in chemical processing, petrochemicals, power generation, and instrumentation.
The composition of stainless steel 321/321H seamless tubing includes chromium (17–19%), nickel (9–13%), and titanium (0.3–0.8%), with 321H featuring a higher carbon content for enhanced strength at elevated temperatures. This tubing boasts impressive mechanical properties, including a tensile strength of 515–700 MPa, yield strength of 205–275 MPa, elongation of 35–40%, and a hardness rating below 90 HRB. Its unique alloying mix provides outstanding resistance to intergranular corrosion, oxidation, and thermal fatigue, making it a reliable choice for long-term use in harsh environments and high-temperature applications.
Tube Range : 6.35 mm OD To 101.6 mm OD Guage: 25 SWG – 10 SWG
Outer Diameter : 3.00 mm – 219.10 mm
Wall Thickness : 0.40 mm – 12.70 mm
Schedules : 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH
Length : Upto 30 meters, Custom Cut Lengths
Specifications : ASTM A213 / ASTM SA213
Types : Round, Square, Rectangle, Coil, “U” Shape, Hydraulic & Honed Tubes
| SS | 321 | 321H |
| Ni | 09 – 12 | 09 – 12 |
| N | 0.10 | 0.10 |
| Cr | 17 – 19 | 17 – 19 |
| C | 0.08 max | 0.04 – 0.08 |
| Si | 1 max | 0.75 max |
| Mn | 2 max | 2 max |
| P | 0.040 max | 0.045 max |
| S | 0.030 max | 0.03 max |
| TI | 4(C+N) | 0.70 max |
| Grade | 321 | 321H |
| Tensile Strength (MPa) min | 515 | 515 |
| Yield Strength 0.2% Proof (MPa) min | 205 | 205 |
| Elongation (% in 50mm) min | 40 | 40 |
| Hardness | ||
| Rockwell B (HR B) max | 95 | 95 |
| Brinell (HB) max | 217 | 217 |
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 321/321H Seamless Tubing from David Pipes and Tubes guarantees you a high-performance product designed for challenging environments. Our tubing offers exceptional resistance to oxidation and intergranular corrosion, making it perfect for high-temperature applications in industries like aerospace, chemical processing, and petrochemical. With a focus on quality, we implement stringent testing and quality control measures to ensure durability and reliability. Our expert team provides tailored solutions to meet your specific needs, ensuring customer satisfaction. Trust David for superior stainless steel tubing that enhances the safety and efficiency of your operations.
David Pipes and Tubes, one of the largest suppliers of Stainless Steel 321/321H Seamless Tubing in Canberra, Australia, 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.
Yes, we offer custom sizes for Stainless Steel 321/321H Seamless Tubing to meet your specific requirements. Our team at David Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@davidpipes.com.
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
| 321H | S32109 | 321S51 | – | 1.4878 | X6CrNiTi18-10 | – | SUS 321H |
You’ll find stainless steel 321/321H seamless tubing commonly used in heat exchangers, boiler tubes, furnace components, exhaust systems, and instrumentation lines, where stability under high temperatures and resistance to corrosion are essential. Its seamless design guarantees leak-proof performance, smooth fluid flow, and precise dimensions. The titanium stabilization further boosts its resistance to intergranular corrosion during welding or heat exposure, making 321/321H seamless tubing an excellent fit for chemical plants, petrochemical refineries, power generation facilities, and other industrial applications that demand reliability, durability, and long-lasting performance.
©2024 David Pipes and Tubes . All Rights Reserved.
