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MaterialsJul 5, 2026
304 vs 316L Stainless Steel: Selecting the Right Grade for Your Application
Comparing corrosion resistance, cost and formability to choose between 304 and 316L for enclosures and components.
Stainless steel grade selection balances corrosion performance, mechanical properties and cost. The two most common grades in sheet metal work are 304 and 316L.
When 304 Is Enough
For indoor equipment, dry environments and general structural parts, 304 offers excellent corrosion resistance and formability at lower cost.
When to Specify 316L
Coastal installations, chemical exposure and semiconductor wet processes demand 316L, whose molybdenum content resists pitting from chlorides.
Fabrication Notes
Both grades work-harden quickly; 316L requires slightly higher bending force and careful weld cleaning to preserve corrosion resistance.