Ferromolybdenum Production

Product Introduction

Ferromolybdenum (FeMo) is a vital ferroalloy used to add molybdenum to steel and cast iron, dramatically improving high-temperature strength, corrosion resistance, and creep resistance. A large portion of the global ferromolybdenum supply is produced in China, the United States, and Chile. The most basic definition of the ferromolybdenum production process is that molybdenum is first mined and then converted into molybdenum (VI) oxide, MoO₃.

This oxide is mixed with iron oxide and aluminum and then reduced in a thermite reaction. The ferromolybdenum is then purified by electron beam melting, or the product can be packaged as is. Typically, the resulting alloy will be produced in the form of small clumps or finer powders. Ferromolybdenum is usually supplied in bags or steel drums for transportation.

Core Selling Points

• Controlled Molybdenum Content: FeMo grades from 55% to 65% Mo available to match your steel specification.
• Low Impurity Profile: Silicon, phosphorus, and sulfur are held to strict limits to prevent inclusions and hot-shortness.
• Multiple Sizes: Lumps, crushed fines, and powder grades for ladle addition, cored wire, and injection metallurgy.
• Technical Guidance: Our team advises on recovery rates, addition timing, and slag practice for optimal molybdenum yield.

Technical Parameters

* Composition ranges are industry typical. Confirm exact limits on the mill test certificate before ordering.

Application Scenarios

Stainless and Heat-Resistant Steels: Ferromolybdenum is essential for 316-series stainless steel and heat-resistant grades used in chemical plants, heat exchangers, refinery equipment, and turbine piping.

Tool Steels: High-speed steels and cold-work tool steels rely on molybdenum for red-hardness and wear resistance. Drill bits, dies, chisels, and milling cutters all benefit from FeMo addition.

Construction and Engineering Steels: Load-bearing components, rotary drilling rigs, and heavy castings use molybdenum-alloyed steel for toughness under impact and fatigue.

Automotive and Transportation: Ferromolybdenum is used in gears, axles, crankshafts, and suspension components where strength and durability are critical.

Shipbuilding and Offshore: Propeller shafts, hull structures, and platform components in marine environments require the corrosion resistance that molybdenum imparts.

Product Delivery

Ferromolybdenum is packed in 50 kg or 100 kg steel drums, or 1-ton big bags, depending on order volume and customer handling equipment. We ship by container or break-bulk, with FOB, CIF, and DAP terms available. Lead time is typically 15–25 days. Third-party inspection and pre-shipment sampling can be arranged.

FAQ

Q: What is the typical molybdenum recovery rate when adding FeMo to liquid steel? A: Recovery rates of 92–97% are typical in well-controlled electric-arc furnace and ladle-metallurgy operations. Our technical team can advise on addition practice to maximize yield.

Q: Can you supply ferromolybdenum powder for injection metallurgy? A: Yes. Powder grades with specified particle-size distributions are available. Contact us to discuss your injection-system requirements.

Q: How does ferromolybdenum differ from molybdenum oxide for steelmaking? A: Ferromolybdenum is a pre-alloyed form that dissolves predictably and carries lower oxygen than oxide. It is preferred when precise chemistry control and low residual oxygen are required.