Home > Stainless Steel > Stainless Steel 321/321H Heat Exchanger Tubing
Welcome to Tun Pipes, your trusted partner in Naypyidaw for industrial solutions. We are proud to supply high-performance Stainless Steel 321/321H Heat Exchanger Tubing, engineered for reliability where it matters most. In demanding environments, our tubing offers superior resistance to corrosion and high temperatures, ensuring your systems operate with lasting efficiency. We understand that your projects require materials you can count on, which is why we focus on delivering quality that not only meets but exceeds expectations. For seamless performance in critical applications, Tun Pipes is your dependable supplier in Myanmar.
At its core, this tubing is an austenitic stainless steel stabilized with titanium, which allows it to withstand a wide temperature range. The “H” variant is specially processed to have a higher carbon content, which results in enhanced elevated temperature strength. This composition provides excellent mechanical properties, including good tensile strength and impressive creep resistance. Essentially, this means the tubing remains strong and stable under high stress and heat, preventing deformation and failure over time, making it a robust choice for challenging conditions.
Range : 10 mm OD to 50.8 mm OD
Outer Diameter : 6.00 mm to 101.60 mm
Wall Thickness : 0.70 mm to 8.00 mm
Length : up to 20 m (65.62 ft) Length & Customed Required Length
Specifications : ASTM A 213, A 268, A 269, A 789, Equivalent to ASME, EN, JIS Etc.
| Element | SS 321 | SS 321H |
| C | 0.08 max | 0.04 – 0.10 |
| Mn | 2.0 max | 2.0 max |
| Si | 1.0 max | 1.0 max |
| P | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max |
| Cr | 17.00 – 19.00 | 17.00 – 19.00 |
| N | 0.10 max | 0.10 max |
| Ni | 9.00 – 12.00 | 9.00 – 12.00 |
| Ti | 5(C+N) – 0.70 max | 4(C+N) – 0.70 max |
| Element | SS 321/321H |
| Density | 8.0 g/cm3 |
| Melting Point | 1457 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
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 Heat Exchanger Tubing from Tun Pipes and Tubes ensures high quality and reliability for your industrial applications. Our tubing is manufactured using premium-grade materials, adhering to strict industry standards, which guarantees durability and performance. We offer customized solutions to meet specific requirements, backed by exceptional customer service and technical support. With our extensive inventory and prompt delivery, you can count on us for timely project execution. Trust Tun Pipes and Tubes for superior stainless steel products that enhance efficiency and longevity in heat exchange systems.
Tun Pipes and Tubes, one of the largest suppliers of Stainless Steel 321/321H Heat Exchanger Tubing in Naypyidaw, Myanmar, 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 Heat Exchanger Tubing to meet your specific requirements. Our team at Tun Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@tunpipes.com.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Stainless Steel 321/321H Heat Exchanger Tubing is applied in superheaters, heat exchangers, boiler systems, refinery units, and exhaust gas treatment systems. It performs particularly well in thermal cycling applications as well as welded structures that are involved in continuous high-temperature service. The 321 stabilization of titanium does not cause sensitization, but the presence of more carbon in 321H enables higher performance in pressure-containing and high-heat services. These tubes offer a reliable and effective heat transfer solution for corrosive and high-temperature applications, guaranteeing reliability and longer service life.
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