The chemical composition of 316L stainless steel mainly includes carbon (C), manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), chromium (Cr), nickel (Ni), molybdenum (Mo) and other elements, and May contain small amounts of nitrogen (N) and titanium (Ti). The specific ingredients are as follows:
Carbon (C): Its content is maximum 0.03%.
Manganese (Mn): The maximum content is 2.00%.
Silicon (Si): The maximum content is 1.00%.
Phosphorus (P): The maximum content is 0.045%.
Sulfur (S): The maximum content is 0.030%.
Chromium (Cr): content between 16.0% and 18.0%. Chromium is one of the most important alloying elements in 316L stainless steel, which gives 316L stainless steel excellent corrosion resistance.
Nickel (Ni): content between 10.0% and 14.0%. Nickel can improve the strength and toughness of stainless steel.
Molybdenum (Mo): content between 2.0% and 3.0%. Molybdenum can further improve its corrosion resistance and heat resistance.
In addition, 316L stainless steel may also contain a small amount of nitrogen (N), whose content is generally 0.10%. At the same time, after adding a small amount of titanium (Ti), the titanium content is generally 0.75%, which can improve the corrosion resistance of stainless steel.
The proportion and combination of these elements make 316L stainless steel have excellent corrosion resistance, oxidation resistance, high temperature resistance and good mechanical properties, making it suitable for a variety of harsh working environments.