ASME SA213 TP321 S32100 Stainless Steel Seamless Tube
ASME SA213 TP321 S32100 Stainless Steel Seamless Tube
ASME SA213 TP321 S32100 is a titanium-stabilized austenitic stainless steel seamless tube. Due to its excellent resistance to sensitization and intergranular corrosion, it is particularly suitable for high-temperature applications such as heat exchangers and boilers. The addition of titanium prevents the precipitation of chromium carbide during welding, making it more stable than 304 stainless steel at high temperatures. It is widely used in harsh industrial environments such as petrochemicals, aircraft manifolds, and food and chemical processing equipment.
What are the uses of 321 stainless steel?
Common applications of 321 stainless steel
Aerospace industry: 321 stainless steel is commonly used in aircraft components, such as exhaust systems and engine parts, in high-temperature environments. Its excellent oxidation resistance and high-temperature strength retention make it an ideal material for such applications.
ASME SA213 TP321 S32100 Stainless Steel Seamless Tube Chemical Composition
| Grade | UNS Designation | Carbon | Manganese | Phosphorus | Sulfur | Silicon | Chromium | Nickel |
Titanium |
| TP321 | S32100 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0 - 19.0 | 9.0 - 12.0 |
4(C + N)– 0.70 |
ASME SA213 TP321 Equivalent specification
| Region | Standard System | Designation |
| China | GB | 06Cr18Ni11Ti |
| Japan | JIS | SUS 321 |
| South Korea | KS | STS 321 |
| USA | ASTM | 321 |
| USA | UNS | S32100 |
| ISO | ISO | X6CrNiTi 18 - 10 |
| ISO | Numerical Designation | 4541 - 321 - 00 - I |
| Germany | DIN EN/DIN | X6CrNiTi 18 - 10 (X10CrNiTi 18 - 9) |
| Germany | W - Nr. | 1.4541 |
| France | NF EN/NF | Z6CNT 18 - 10 |
| Europe | EN | X6CrNiTi 18 - 10 |
| Europe | Numerical Designation | 1.4541 |
| Russia | GOST | 09X18H10T X18H10T |
| Sweden | SS | 2337 |
| UK | BS EN/BS | 321S12 321S31 |
Heat Treatment and Grain Size Requirements
| Grade | UNS Number | Heat Treat Type | Austenitizing/Solutionizing/Stabilizing Temperature | Cooling Media |
| TP321 | S32100 | solution treatment | 1900 [1040]°F | water or other rapid cool |
Tensile and Hardness Requirements
| Gade | UNS | Tensile Strength | Yield Strength | Elongation | Hardness | |
| TP321 | S32100 | min, ksi[MPa] | min, ksi[MPa] | in 2 in. or 50 mm, min, % | Brinell/Vickers | Rockwell |
| 75[515] | 30[205] | 35 | 192 HBW | 90 HRB | ||
| 200 HV | ||||||
ASME SA213 TP321 S32100 Stainless Steel Seamless Tubes for Superheaters
1. High Temperature Resistance
Stable operation under high-temperature conditions in superheaters (e.g., common operating temperatures 500-800℃). The titanium element in the alloy prevents sensitization, avoiding intergranular corrosion even under prolonged heating, ensuring efficient steam heating.
2. Corrosion Resistance
Resistant to oxidation by oxygen-rich gases and steam in superheaters. Also resistant to corrosive substances in flue gas, reducing damage and extending the tube's service life.
3. Mechanical Reliability
Exhibits excellent creep resistance and stress fracture resistance under the high pressure and thermal stress of superheaters. Maintains shape and structure, preventing deformation or fracture failure.
Gnee Steel specializes in the production of a wide range of stainless steel products. Gnee Steel's product packaging includes: Steel Strapping: Pipes with an outer diameter of 3 inches or less are typically strapped together with polypropylene film to prevent rust during ocean shipping, and then secured with steel strapping. Wooden Cases/Crates: Pipes are typically packaged in wooden cases or crates to protect the pipes during transportation, especially those that are longer or have larger diameters. Seaworthy Export Packaging: Suppliers typically use standard seaworthy export packaging methods, which may include a variety of materials and techniques to protect the pipes during transportation. Tarpaulin Packaging: This prevents rain, seawater, and other external factors from penetrating the export crates during transportation. Gnee Steel specializes in the production and sale of alloy materials. Gnee Steel's products are widely used in the aerospace, chemical, power, automotive, and nuclear energy sectors, and we can provide customized alloy material solutions based on customer needs. For alloy material pricing or customized alloy material solutions, please contact us for a quote: ru@gneesteelgroup.com
