316L stainless steel is a type of austenitic stainless steel with a low carbon content. It is a highly corrosion-resistant material that contains chromium, nickel, and molybdenum.

The “L” in 316L stands for “low carbon,” indicating that the steel has a carbon content of less than 0.03%, which helps to prevent corrosion. The chromium in 316L stainless steel gives it its corrosion-resistant properties by forming a passive oxide layer on the surface of the steel, which helps to prevent corrosion from occurring. The nickel in 316L stainless steel enhances its corrosion resistance and also gives it a lustrous appearance. The molybdenum in 316L stainless steel provides additional corrosion resistance and also increases its strength and toughness.