ASTM A213 TP321 Stainless Steel Seamless Tubes In Stock
If you are sourcing ASTM A213 TP321 seamless stainless steel tubes for boilers, superheaters, or heat exchangers, you're likely looking for a material that delivers stable performance under high temperature and pressure. TP321-also known as EN 1.4541 or X6CrNiTi18-10-is a titanium-stabilized austenitic stainless steel offering superior resistance to intergranular corrosion and creep strength at elevated temperatures.
GNEE offers ASTM A213 TP321 seamless tubes, TP321 stainless steel boiler tubes, ASTM A213 heat exchanger tubes, A213 TP321 solution-annealed TP321 tubes, A213 TP321 stainless steel superheater tubes, and ASTM A1016 manufacturing standards.
ASTM A213 TP321 Seamless Tube Specification
| Parameter | Specification |
|---|---|
| Material Grade | ASTM A213 TP321 / UNS S32100 |
| Manufacturing Standard | ASTM A213 / ASME SA213; ASTM A1016 (General Requirements) |
| Heat Treatment | Solution Annealed (1020 – 1120 °C, air or water cooled) |
| Manufacturing Process | Cold Drawn, Fully Annealed, Seamless |
| End Type | Plain Ends / Beveled Ends |
| Density | 7.9 g/cm³ |
| Tensile Strength | 515 – 750 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation (A5) | ≥ 35 % |
| Max Service Temperature | Up to 870 °C |
| Available Outer Diameter | 6 mm – 219 mm |
| Wall Thickness Range | 0.5 mm – 25 mm |
| Surface Finish | Bright Annealed / Pickled & Passivated |
Standard delivery condition:
ASTM A213 TP321 steel pipes are typically cold-drawn, fully annealed and pickled, and factory test certificates (EN 10204 3.1) are available upon
request.
What is the difference between ASTM A213 TP321 and TP304?
TP321 contains titanium, which improves its high-temperature strength and prevents post-weld sensitization. TP304 does not contain titanium, therefore it is not suitable for continuous use at temperatures above 425 °C.
What is "solution annealing" in TP321 pipe?
Solution annealing refers to heat treatment at approximately 1050 °C to 1120 °C, followed by rapid cooling to dissolve carbides, thereby ensuring optimal corrosion resistance and ductility.
What is the tolerance under ASTM A1016?
ASTM A1016 defines dimensional and mechanical property tolerances for seamless tubes, ensuring strict control of OD, wall thickness, and length.
TP321 Stainless Steel Tube Price per kg (2025 Updated Data)
As of November 2025, the TP321 stainless steel seamless tube price per kg ranges from US$6.20 to US$7.80/kg depending on the size, wall thickness, and surface finish. Cold-drawn and fully annealed tubes for heat exchangers and superheaters generally fall at the higher end of this range due to precision manufacturing and tight dimensional tolerances. For bulk industrial orders (≥5 tons), Gnee offers factory-direct pricing between US$5.90–6.30/kg, ensuring consistent quality and cost-efficiency.
| Specification | Outer Diameter (OD) | Wall Thickness | Finish | Price (USD/kg) |
|---|---|---|---|---|
| ASTM A213 TP321 | 12.7 mm | 1.5 mm | Pickled & Annealed | $6.20 – $6.60 |
| ASTM A213 TP321 | 25.4 mm | 2.0 mm | Bright Annealed | $6.50 – $7.00 |
| ASTM A213 TP321 | 50.8 mm | 3.0 mm | Polished | $7.20 – $7.80 |
| ASTM A213 TP321 | Custom sizes | - | Custom finish | Quotation basis |
GNEE maintains a large inventory of seamless steel pipes conforming to ASTM A213 TP321 standards, with a full range of specifications covering various diameters and wall thicknesses. Manufactured using solution annealing and cold drawing processes, these pipes ensure high dimensional accuracy and a smooth inner surface. Compliant with ASTM A213/A1016, ISO, and EN standards, and offering complete Material Inspection Certificates (MTCs) for traceability, GNEE provides custom machining services, including length cutting, bending, and polishing, at highly competitive prices with fast delivery (typically 7-15 days).
Get a Quote
For projects requiring boiler, superheater, or heat exchanger tubes, request a quote for:
40A × SCH 40 × 6 m – 210 pcs
50A × SCH 40 × 6 m – 126 pcs
We'll provide CIF pricing, packing details, and documentation support for your import process.
Contact GNEE today to receive your ASTM A213 TP321 seamless stainless steel tube price list, material certificates, and free samples for evaluation.
Email: sales@gneestainless.com
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