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Ferro molybdenum ( Ferro moly ) is a specialized alloy predominantly composed of iron (Fe) and molybdenum (Mo). This high-quality alloy is meticulously produced by melting iron and molybdenum sources-commonly ferrosilicon and industrial-grade molybdenum oxide-in a furnace. The resulting alloy frequently boasts a molybdenum content ranging from50% to 75% . Importantly, ferro molybdenum is not considered hazardous for transportation purposes.
Ferro molybdenum is a crucial additive in the steelmaking and cast iron production industries. When integrated, it significantly enhances the hardenability, strength, and corrosion resistance of final metal products. The molybdenum content in the alloy allows it to withstand high temperatures, making it ideal for demanding applications across automotive, construction, petroleum, and natural gas industries.
| Brand | Chemical Compositions | |||||||
| Mo | Si | S | P | C | Cu | Sb | Sn | |
| Min% | Max % | |||||||
| FeMo 70 | 65.0~75.0 | 1.5 | 0.1 | 0.05 | 0.1 | 0.5 | ||
| FeMo60-A | 55.0~65.0 | 1 | 0.1 | 0.04 | 0.1 | 0.5 | 0.04 | 0.04 |
| FeMo60-B | 55.0~65.0 | 1.5 | 0.1 | 0.05 | 0.1 | 0.5 | 0.05 | 0.06 |
| FeMo60-C | 55.0~65.0 | 2 | 0.15 | 0.05 | 0.2 | 1 | 0.08 | 0.08 |
| FeMo60 | >=60.0 | 2 | 0.1 | 0.05 | 0.15 | 0.05 | 0.04 | 0.04 |
| FeMo55-A | >=55.0 | 1 | 0.1 | 0.08 | 0.2 | 0.5 | 0.05 | 0.06 |
| FeMo55-B | >=55.0 | 1.5 | 0.15 | 0.1 | 0.25 | 1 | 0.08 | 0.08 |
Ferro molybdenum is typically produced via the highly efficient metal thermal method.
The primary raw material for smelting ferro molybdenum is molybdenite (MoS2). Before smelting, molybdenum concentrate typically undergoes oxidative roasting in a multi-hearth furnace, resulting in roasted molybdenum concentrate with a sulfur content of less than 0.07%.
The smelting of ferro molybdenum typically utilizes an external furnace method. This furnace, a cylindrical structure placed on a sand base, is lined with clay bricks. The charge added comprises ferrosilicon containing 75% silicon and a small amount of aluminum granules as a reducing agent. Smelting begins with a top ignition method: an igniter (such as saltpeter, aluminum shavings, or magnesium shavings) is applied to the charge's surface, igniting vigorously. This is followed by a period of quiescence, slag tapping, and removal of the furnace cylinder. The ferro molybdenum ingots are initially cooled in a sand pit, then water-cooled in a cooling chamber, and finally crushed and refined. Metal recovery rates range from 92% to 99%. In recent years, oxygen molybdenum briquettes have become a popular substitute for ferro molybdenum in the steelmaking industry.
Ferromolybdenum is a critical additive in the creation of steel and corrosion-resistant alloys.
Ferro molybdenum, an alloy of molybdenum and iron, serves primarily as a molybdenum additive in steelmaking. Its addition to steel fosters a uniform fine-grained structure and enhances hardenability, aiding in eliminating temper embrittlement. In high-speed steels, molybdenum can partially replace tungsten. When combined with other alloying elements, molybdenum is extensively used in producing stainless steel, heat-resistant steel, acid-resistant steel, and tool steel, as well as in alloys possessing special physical properties. Incorporating molybdenum into cast iron enhances its strength and wear resistance.
The predominant use of ferro molybdenum lies in the production of iron alloys, determined by its molybdenum content and range. This versatile additive is indispensable for manufacturing machine tools and equipment, military hardware, refinery oil pipes, load-bearing components, and rotary drills. Moreover, its applications extend to automobiles, trucks, locomotives, ships, and more. Ferro molybdenum also plays a crucial role in producing stainless steel and heat-resistant steel, essential for synthetic fuel and chemical plants, heat exchangers, generators, refinery equipment, pumps, turbine pipes, ship propellers, and storage containers for plastics and acids. In tool steels, a high proportion of ferro molybdenum enhances performance in high-speed machining parts, cold-working tools, drills, screwdrivers, molds, chisels, heavy castings, balls and rolling mills, rollers, cylinder blocks, and piston rings.
In April, a significant rise in the price of stainless steel 316 spurred the enthusiasm of end buyers, leading to a surge in demand for ferro molybdenum. This heightened confidence has been transmitted upstream, with the price of molybdenum concentrate continuing to climb, thereby increasing costs. Concurrently, ferro molybdenum factories, buoyed by ample orders, are disinclined to sell at lower prices. Consequently, the transaction price of ferro molybdenum is steadily rising, with the current bidding price approaching 220,000 yuan per ton. Spot transactions are sporadically occurring at 219,000 to 220,000 yuan per ton. Projections indicate a slight price increase next month.
HongshunSpecializing in the production of ferro molybdenum, Hongshun stands as a leading supplier of ferroalloy materials. Our robust supply capacity ensures we meet the diverse needs of any customer, offering both competitive prices and superior product quality. Should you require ferro molybdenum alloy, we invite you to leave a message to connect with us.
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