1. Chemical Composition
- 304L Stainless Steel: Contains 18%-20% chromium (Cr) and 8%-12% nickel (Ni). The “L” indicates low carbon content, typically ≤0.03%, which improves its weldability.
- 316L Stainless Steel: Similar to 304L, but with an additional 2%-3% molybdenum (Mo). The molybdenum enhances its corrosion resistance, especially in chloride environments.
2. Corrosion Resistance
- 304L: Offers good corrosion resistance in most atmospheric and mildly corrosive environments.
- 316L: The addition of molybdenum gives 316L superior corrosion resistance, particularly in chloride-rich environments like seawater or chemical exposure.
3. Mechanical Properties
- Both grades have similar mechanical properties, but 316L may offer slightly better performance in certain high-temperature applications.
4. Weldability
- Both 304L and 316L are low-carbon versions, which give them excellent weldability.
5. Applications
- 304L: Commonly used in food processing, household items, architectural decoration, medical devices, etc.
- 316L: Ideal for marine, chemical processing, pharmaceuticals, oil & gas, and other industries where high corrosion resistance is required, particularly in environments involving chlorides and strong acids.
6. Price
- 316L is generally more expensive than 304L because the addition of molybdenum increases its corrosion resistance but also raises the cost.
In summary, 316L is more corrosion-resistant than 304L, especially in harsh chemical or marine environments.
Gavin
+86 13255217838
Gavin@huissmetal.com
