When nickel is added to stainless steel in sufficient amounts the crystal structure changes to "austenite". The basic composition of austenitic stainless steels is 18% chromium and 8% nickel. Austenitic grades are the most commonly used stainless steels accounting for more than 70% of production (type 304 is the most commonly specified grade by far).
Basic properties
- Excellent corrosion resistance
- Excellent weldability (all processes)
- Excellent formability, fabricability and ductility
- Excellent cleanability, and hygiene characteristics
- Eood high and excellent low temperature properties
- Non magnetic (if annealed)
- Hardenable by cold work only
Common uses
- Computer keyboard key springs (301)
- Kitchen sinks (304D)
- Food processing equipment
- Architectural applications
- Chemical plant and equipment
Table: Common austenitic stainless steel grades and their applications
