ASTM A269 TP321 Polished Stainless Steel Seamless Tube 1/4"-2" OD Bright Annealed for High-Temperature Applications
ASTM A269 TP321 Bright Annealed Polished Seamless Stainless Steel Tube featuring internal and external polished surfaces with excellent high-temperature stability and corrosion resistance.
| Material | TP321 Stainless Steel |
| Outer Diameter (OD) | 1/4" - 2" |
| Length | Fixed Length (6m) or Cut-to-Length |
| Surface Finish | Polished (Internal & External) |
| Standards | ASTM A269 / ASME SA269, ASTM A213 / ASME SA213, EN 10216-5 |
| Certifications | ISO, PED |
| Packaging | Plywood Case |
- Exhaust manifolds and gathering rings for aircraft and aerospace
- Superheater and reheater tubes for boilers and pressure vessels
- Components for industrial furnaces
- Chemical equipment and heat exchanger systems for processing corrosive media at high temperatures
TP321 seamless tubes undergo advanced Bright Annealed heat treatment in controlled atmosphere furnaces filled with inert or reducing gases. This prevents surface oxidation at high temperatures, resulting in smooth, bright surfaces free of oxidation skin while optimizing mechanical properties and corrosion resistance.
| Material | C | Mn | P | S | Si | Cr | Ni | Ti |
|---|---|---|---|---|---|---|---|---|
| TP321 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | 5C -0.70 |
TP321 stainless steel features excellent resistance to intergranular corrosion through titanium (Ti) stabilization, preventing chromium carbide formation at high temperatures (425-850°C) and in welding heat-affected zones. This provides superior performance compared to 304 or 316 stainless steel in high-temperature cycling applications with good creep and stress fracture properties.
With 19 years of industry experience and mature quality control systems, we ensure every TP321 tube meets international standards, providing stable quality, competitive pricing, and reliable delivery guarantees.
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