- sales@bereketpipes.com
- Addis Ababa, Ethiopia
Home > Stainless Steel > Stainless Steel 321/321H Seamless Tubing
Bereket Pipes is a reliable manufacturer and supplier of Stainless Steel 321/321H Seamless Tubing, located in Addis Ababa, Ethiopia, providing high-quality tubing solutions for high-temperature and pressure-extensive applications. Engineered for precision and durability, this seamless tubing is crafted to resist thermal stress, corrosion, and constant service in harsh environments. Bereket Pipes serves petrochemical, aerospace, power generation, and chemical processing industries with consistent quality, dimensional precision, and global standards compliance for longevity and performance.
Stainless Steel 321/321H Seamless Tubing is produced from titanium-stabilized austenitic stainless steel with 17–19% chromium and 9–12% nickel. Grade 321 shows very good resistance to intergranular corrosion, whereas 321H, with an increased carbon content (up to 0.10%), shows improved strength and creep resistance at high temperatures. The tubing is normally supplied with tensile strength of 515–750 MPa and yield strength of approximately 205 MPa. The seamless design provides the best strength, smooth inner surfaces, and very good performance at pressure and high temperature up to 900°C.
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 Bereket 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 Bereket for superior stainless steel tubing that enhances the safety and efficiency of your operations.
Bereket Pipes and Tubes, one of the largest suppliers of Stainless Steel 321/321H Seamless Tubing in Addis Ababa, Ethiopia, 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 Bereket Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@bereketpipes.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 |
321/321H Seamless Stainless Steel Tubing finds extensive application in heat exchangers, steam mains, refinery units, exhaust systems, and furnace parts. Grade 321 is used in welded units that have to resist sensitization, and 321H is suitable for high-temperature, high-pressure applications where greater mechanical strength is imperative. The tubes are suitable for thermal cycling, oxidation, and corrosive medium applications. Stainless Steel 321/321H Seamless Tubing provides a sound, long-term solution for industries demanding tough, heat-resistant tubing with excellent metallurgical stability.
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