What does the L stand for in 316L stainless?

 

Weldability: The lower carbon content reduces carbide formation at grain boundaries during welding, improving its resistance to intergranular corrosion (weld decay).

 

Applications: Its excellent weldability makes it a preferred choice for fabrication in industries like chemical processing, pharmaceuticals, marine engineering, and construction.

 

Corrosion Resistance: Like regular 316, it offers excellent resistance to chlorides and other corrosive agents, but the 'L' grade ensures this protection remains strong after welding.