Explanation
This is a alloy of iron and molybdenum, mainly used as additive for alloy. Usually, the content of molybdenum ranges from 55% to 70%. ferromolybdenum alloy is usually produced by metal thermal method (also known as out of furnace method), which uses molybdenum concentrate and iron chips or scrap steel as raw materials, and smelting production is carried out by reducing agents such as coke, aluminum particles, aluminum containing alloy and ferrosilicon powder. ferromolybdenum alloy has higher density, higher melting point, and increases with the increase of molybdenum content. For example, the melting point of ferromolybdenum alloy containing 60% molybdenum is about 1800 ° C. The trademark and chemical composition of ferromolybdenum are clearly specified in GB/T3649-2008. ferromolybdenum is mainly used as alloy additive and is widely used in high speed steel to improve red hardness and wear resistance. Adding molybdenum to heat resistant steel, alloy structural steel and tool steel can refine grain, improve hardenabilhy, reduce temper brittleness, and improve thermal strength. Adding molybdenum to high-strength low alloy steel can promote the formation of bainite, while adding molybdenum to stainless steel can improve the pitting corrosion resistance. In addition, adding molybdenum to alloy cast iron can improve wear resistance and high temperature properties.
Classification
Metals -> Steels -> Iron