- sales@blundellpipes.co.nz
- Hamilton, New Zealand
Home > Stainless Steel > Stainless Steel 321/321H Seamless Tubing
Blundell Pipes and Tubes, a reputable manufacturer and supplier located in Hamilton, New Zealand, specializes in high-quality Stainless Steel 321/321H Seamless Tubing designed for extreme temperatures and corrosive environments. This tubing is crafted using cutting-edge seamless technology, ensuring consistent wall thickness, a smooth surface finish, and exceptional structural strength. Renowned for its remarkable resistance to oxidation and intergranular corrosion, Blundell Pipes and Tubes provides tubing that adheres to international quality standards. Their Stainless Steel 321/321H Seamless Tubing is a top choice for critical applications where thermal stability, durability, and long-lasting performance are a must.
The Stainless Steel 321/321H Seamless Tubing is made from an austenitic stainless steel alloy that includes chromium and nickel, with titanium added to prevent carbide precipitation during welding and exposure to high temperatures. The 321H variant features a higher carbon content for enhanced strength at elevated temperatures. This unique composition offers excellent resistance to oxidation, scaling, and intergranular corrosion. On the mechanical side, the tubing boasts good tensile and yield strength, impressive ductility, strong creep resistance at high temperatures, and dependable impact toughness, making it perfect for continuous high-heat operations.
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 Blundell 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 Blundell for superior stainless steel tubing that enhances the safety and efficiency of your operations.
Blundell Pipes and Tubes, one of the largest suppliers of Stainless Steel 321/321H Seamless Tubing in Hamilton, New Zealand, 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 Blundell Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@blundellpipes.co.nz.
| 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 widely utilized in chemical and petrochemical plants, oil and gas refineries, and power generation facilities where high-temperature performance is crucial. It’s commonly used in heat exchangers, furnace components, exhaust systems, pressure tubing, and thermal processing equipment. Additionally, this tubing is favored in aerospace applications, boilers, and superheaters due to its outstanding resistance to oxidation and thermal stress. With its long service life, minimal maintenance needs, and reliable high-temperature strength, it’s an excellent fit for demanding industrial settings.
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