An iron alloy composed of molybdenum and iron

An iron alloy composed of molybdenum and iron, generally containing 50-60% molybdenum, used as an alloy additive in steelmaking.

Ferromolybdenum is an alloy of molybdenum and iron.
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Its main use is as an additive for molybdenum in steelmaking.

Adding molybdenum to steel can make the steel have a uniform fine-grained structure, improve the hardenability of the steel, and help eliminate temper brittleness. In high-speed steel, molybdenum can replace part of tungsten.

Molybdenum is used in combination with other alloying elements to produce stainless steel, heat-resistant steel, acid-resistant steel and tool steel, as well as alloys with special physical properties. Molybdenum is added to cast iron to increase its strength and wear resistance.