- sales@bulanpipes.id
- Jakarta, Indonesia
Home > Stainless Steel > Stainless Steel 321/321H Seamless Tubing
Bulan Pipes and Tubes stands out as a top-notch manufacturer and supplier located in Jakarta, Indonesia. They specialize in high-quality Stainless Steel 321 and 321H Seamless Tubing, crafted for exceptional performance in high-temperature and corrosive settings. Adhering to ASTM A213 and ASTM A269 standards, these stabilized austenitic stainless steels are infused with titanium to ward off intergranular corrosion and carbide precipitation during welding and thermal cycling. The Grade 321H variant boasts a higher carbon content, enhancing its creep resistance for prolonged use at elevated temperatures. With a diverse selection of diameters, wall thicknesses, and surface finishes, these seamless tubes are a trusted choice in refineries, petrochemical plants, power generation, and thermal processing applications around the globe.
Stainless Steel 321/321H Seamless Tubing is composed of approximately 17–20% chromium, 9–13% nickel, and titanium (at least five times the carbon content) for stabilization. The Grade 321H variant has a higher carbon content (around 0.04–0.10%) to boost its creep and stress rupture strength at temperatures exceeding 537 °C (1000 °F). The tensile strength typically falls between 515–750 MPa, while the yield strength hovers around 205 MPa. These alloys excel in resisting oxidation, polythionic acid stress corrosion cracking, and intergranular attack. They also maintain good ductility, weldability, and mechanical integrity under continuous high-temperature exposure, making them perfect for demanding seamless tubing 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 Bulan 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 Brydon for superior stainless steel tubing that enhances the safety and efficiency of your operations.
Bulan Pipes and Tubes, one of the largest suppliers of Stainless Steel 321/321H Seamless Tubing in Indonesia, Jakarta, 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 Bulan Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@bulanpipes.id.
| 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 |
Stainless Steel 321/321H Seamless Tubing is widely used in high-temperature applications due to its excellent oxidation resistance and mechanical stability. It is commonly employed in the aerospace industry for exhaust systems, fuel lines, and other components exposed to extreme conditions. In the chemical processing sector, this tubing is ideal for handling corrosive substances and in heat exchangers. Additionally, it is used in petrochemical applications, pressure vessels, and power generation equipment. Its durability and reliability make it a preferred choice for critical applications across various industries.
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