Stainless steel carbon content can vary depending on the grade and type of stainless steel. Austenitic stainless steels, which are the most common type of stainless steel, typically have low carbon content, generally less than 0.08%. This is because the high chromium and nickel content in these steels provide sufficient strength and corrosion resistance without the need for high carbon content.
Ferritic stainless steels, on the other hand, contain higher carbon content than austenitic stainless steels, typically ranging from 0.08% to 0.20%. This helps improve their strength and toughness but also makes them more prone to corrosion.
Martensitic stainless steels contain even higher carbon content, typically ranging from 0.10% to 1.20%. These steels are heat-treatable and can be hardened by quenching in water or oil, making them suitable for applications such as knives and cutting tools.
In summary, the carbon content in stainless steel can vary depending on the type and grade of the stainless steel, but it is generally lower than in carbon steel.