What is the difference between SS 304 and SS 316?

Question

Accepted Answer

SS 304 and SS 316 are both stainless steel alloys, but with different compositions and properties.

SS 304 contains 18% chromium and 8% nickel, while SS 316 contains 16% chromium, 10% nickel, and 2% molybdenum.
SS 316 is more corrosion-resistant than SS 304, especially in environments with chlorides or acids.
SS 316 is more expensive than SS 304.
SS 304 is commonly used in food processing equipment, while SS 316 is used in marine and chemical processing industries.

Accepted Answer

The key difference between 304 vs 316 stainless steel that makes them different is the addition of molybdenum, an alloy that drastically enhances corrosion resistance, especially for more saline or chloride-exposed environments. 316 stainless steel contains molybdenum, but 304 does not.

What is the difference between SS 304 and SS 316?

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