How much manganese is found in ordinary steel?

In ordinary carbon steels, manganese is present in amounts of less than 1.65 percent. While manganese is an essential agent in steelmaking used to remove impurities like sulfur and oxygen, it is only classified as an alloying element when added in higher concentrations to achieve specific physical properties, such as increased strength or hardness.123

For instance, in low-alloy steels, manganese may be added in amounts up to 1.2 percent to improve yield and tensile strength. In contrast, specialized wear-resistant steels, such as Hadfield steel, contain significantly higher amounts, typically ranging from 10 to 14 percent.24