Ferrotungsten is an alloy made primarily of iron and tungsten, typically containing around 70% tungsten. It is used mainly in the production of high-speed steel and other alloys, enhancing their hardness and heat resistance. This makes it valuable in manufacturing tools and machinery that require durability. The production of ferrotungsten involves reducing tungsten ore, often wolframite or scheelite, with iron in a high-temperature furnace. The resulting alloy is then used in various applications, including aerospace and automotive industries, where strong and heat-resistant materials are essential for performance and safety.