Manganese addition agents are generally chosen on the basis of carbon content. Inexpensive standard ferromanganese is used when the steel is oxidized (low in carbon) or when higher residual carbon contents are allowable. As maximum steel carbons become more restricted it is necessary to switch to the more costly low-or medium carbon ferroalloys. The final aim chemistry will determine which addition agents can or cannot be used. Silicon content is often a second deciding factor.
Medium Carbon Ferro Manganese is also used as an alloying constituent for : Tool steel - Stainless and heat resistance steel - structural steel and anti abrasion steel to name a few