ASTM 316 vs. SUS304: Which Grade Fits Your Needs?

Choose 304 (or SUS304) for:

General Applications: Kitchen sinks, food processing, indoor architectural trim, appliances.

Mild Environments: Low exposure to chlorides or harsh chemicals.

Budget: More economical for everyday items.

Choose 316 (or SUS316) for:

Corrosion Resistance: Superior resistance to chlorides, saltwater, and chemicals.

Harsh Environments: Marine fittings, coastal areas, chemical processing, pharmaceutical equipment, medical devices.

High Performance: When longevity and resistance to pitting/crevice corrosion are critical.

Key Difference in Composition

304: 18% Chromium, 8% Nickel (no molybdenum).

316: 18% Chromium, 10% Nickel, and 2-3% Molybdenum (adds significant corrosion resistance).