Common Applications:

Welding:
Argon is used as a shielding gas in welding to protect the weld area from atmospheric contamination.
Lighting:
Argon is used in incandescent light bulbs and some fluorescent lamps.
Industrial Processes:
Argon is used as a protective atmosphere in steel manufacturing, metal fabrication, electronics production, and food preservation.
Laboratory Applications:
Argon is used in gas chromatography, zeroing, and other analytical and process control applications.