AISI 304 Edelstahl (UNS S30400): Properties & Equivalents
ASTM A240/A276 · Published: 2026-05-26 · Updated: July 2026
AISI 304 (UNS S30400) is the most common austenitic stainless steel, containing 18-20% chromium and 8-10.5% nickel. This classic '18/8' composition provides excellent corrosion resistance in atmospheric, food-processing, and mild chemical...
AISI 304 (UNS S30400) ist der meiste gemein austenitic stainless steel, containing 18-20% chromium und 8-10.5% nickel. Dies classic '18/8' composition provides excellent corrosion widerstand in atmospheric, food-processing, und mild chemical environments, coupled mit gut formability und weldability. 304 cannot sein hardened durch heat treatment but arbeiten-hardens rapidly während kalt forming. Es ist non-magnetic in der annealed condition but kann become slightly magnetic nach kalt working. Anwendungen span von kitchen ausrüstung und food processing machinery zu architectural trim und chemical containers.
Quick Facts
| Kategorie | Edelstahl |
| Norm | ASTM A240/A276 |
| Density | 8.00 g/cm³ |
| Yield Strength | 205 MPa (30 ksi) |
| Tensile Strength | 515 MPa (75 ksi) |
Physical Eigenschaften
| Schmelzpunkt | 1400-1450°C |
| Wärmeleitfähigkeit | 16.2 W/m·K bei 20°C |
| Dichte | 8.0 g/cm³ |
Global Equivalents & Cross-Referenz
| Alternative Norm / Güte | Action |
|---|---|
| EN 1.4301 | Compare |
| X5CrNi18-10 | Compare |
| SUS304 | Compare |
| 06Cr19Ni10 | Compare |
| AISI 304 | Compare |
Heat Treatment & Processing
| Lösung Annealing | 1010-1120°C, rapid quench |
| Stress Relieving | 250-425°C (avoid 425-860°C) |
| Hinweis | Cannot sein hardened durch heat treatment |
Welding & Fabrication
| Preheat | Nicht erforderlich |
| Filler Metal | ER308L (GMAW), E308L-16 (SMAW) |
| Interpass Temp | Max 175°C |
| Schweißeignung Rating | Excellent |
Verwandt Comparisons
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Frequently Asked Questions
Ist 304 stainless steel magnetic?
In der annealed condition, 304 ist essentially non-magnetic. However, kalt working causes partial transformation von austenite zu martensite, making kalt-worked areas slightly magnetic. Dies ist normal und tut nicht affect corrosion widerstand. Für truly non-magnetic applications, consider 316L oder specialized hoch-nickel alloys.
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