The primary distinction lies in their corrosion resistance and chemical composition:
- 304 Stainless Steel: Contains 18% chromium and 8% nickel, offering excellent general-purpose corrosion resistance and tensile strength. Suitable for indoor and outdoor applications, but not ideal for environments with chlorides or saltwater exposure.
- 316 Stainless Steel: Includes 2-3% molybdenum, which enhances resistance to chloride corrosion and pitting. Best suited for marine-grade applications and areas exposed to harsh chemicals.