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Molybdenum steel is a strong, heat-resistant, and corrosion-resistant alloy used in various industries. It is versatile, easy to weld, and can provide strength without adding significant weight. Molybdenum-containing alloys are used in a wide range of applications, from construction to electronics to healthcare. Molybdenum replaced tungsten in the early 20th century due to its lower cost and greater versatility.
Molybdenum steel is a high strength alloy used in a variety of industries. Steel alloys made with molybdenum are not only stronger and harder, they are also highly resistant to heat and corrosion. Electronics, heavy machine parts, tools, and aircraft parts are often made from steel alloys that contain molybdenum.
Molybdenum’s unique properties make it useful in steel alloys. Molybdenum is highly resistant to heat and can withstand extremely high temperatures, with an exceptionally high melting point, and is also an excellent thermal conductor. Molybdenum steel alloys retain their strength when heated and are less likely to expand, soften, or warp. Tools and parts exposed to extreme friction are often made from these alloys.
Molybdenum steel has other advantages as well. Molybdenum steel is highly resistant to corrosion and is used in stainless steel alloys for added protection. The alloy is also easy to weld, making it particularly versatile. It is only slightly denser than iron and much lighter than tungsten, meaning molybdenum can provide strength without dramatic increases in weight.
There is no single molybdenum steel and a wide variety of molybdenum containing alloys are produced for specific applications. Most molybdenum alloys contain 0.25% to 8% molybdenum. Many nickel-based and titanium steel alloys also include molybdenum.
Prior to the 20th century, tungsten was often used to make steel alloys. In the late 20th century, researchers began experimenting with the much lighter element molybdenum and had promising results. A French company named Schneider & Co. became the world’s first molybdenum steel maker when it used the alloy to make armor in 1990.
During the first half of the 20th century, molybdenum began to replace tungsten. During World War I, the demand for tungsten drove up prices, making alternative alloys more attractive. Not only was molybdenum cheaper, the lower weight and higher heat resistance also made the metal more versatile, with manufacturers constantly finding new applications.
Modern industries continue to exploit the properties of this alloy. Molybdenum steel is used to make huge structural beams for the construction industry and tiny filaments for electronic devices. Furnace and turbine parts, automobile parts, aircraft parts, and heavy machine parts such as bearings and dies are all made from these alloys. Molybdenum-containing stainless steel is used in the pharmaceutical, healthcare, food, catering and catering industries, as well as wherever hygiene is an issue and sterile surfaces are required.
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