AISI 321 Titanium-Stabilized Edelstahl for High-Temperature Service
ASTM A240 · Published: 2026-06-03 · Updated: July 2026
AISI 321 is an austenitic stainless steel stabilized with titanium to prevent intergranular corrosion after exposure to temperatures in the 425-850°C range. It is the preferred grade for aircraft exhaust manifolds, expansion joints, and chemical...
AISI 321 ist ein austenitic stainless steel stabilized mit titanium zu prevent intergranular corrosion nach exposure zu temperatures in der 425-850°C bereich. Es ist der preferred grade für aircraft abgas manifolds, expansion joints, und chemical processing ausrüstung operating in der carbide precipitation zone.
Quick Facts
| Kategorie | Edelstahl |
| Norm | ASTM A240 |
| Density | 8.03 g/cm³ |
| Yield Strength | 205 MPa |
| Tensile Strength | 515 MPa |
Global Equivalents & Cross-Reference
Verwandt Materials
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Frequently Asked Questions
Wenn sollte I verwenden 321 instead von 304?
Verwenden 321 wenn der service temperature ist zwischen 425-850°C — der bereich wo 304 ist susceptible zu sensitization (chromium carbide precipitation bei grain boundaries). Der titanium addition in 321 preferentially forms titanium carbides, preserving chromium für corrosion widerstand.
References & International Standards
- ASTM International. Norm Specifications für Stahl & Metal Alloys. astm.org
- International Organization für Standardization (ISO). Metallic Materials — Cross-Referenz Database. iso.org
- American Iron und Stahl Institute (AISI). Stahl Güte Designations & Equivalents. steel.org
- European Committee für Standardization (CEN). EN Stahl Standards & Numbering System. cencenelec.eu