What is the use of tungsten steel?

Tungsten steel is a kind of metal alloy composed of tungsten and iron Adding tungsten to the alloy can increase the hardness and heat resistance, and make the equipment made of tungsten steel wear-resistant and maintain high performance at high temperature As a tool steel, tungsten steel is widely used in industry It is often used to process other metal tools and machines, such as dies and cutters The chemical element tungsten is a transition metal with atomic number 74 and its chemical symbol is w Tungsten is one of the most dense and heat-resistant chemical elements It melts at 3422 degrees Celsius, so the melting point is the highest in pure metals and the second in chemical elements Its density is 19.25/cm3, so it is higher than uranium, lead and most transuranium elements In addition, the tensile strength of tungsten is also very high Due to its hardness and heat resistance, tungsten is a common alloy element in high speed steel (a tool steel) These alloy tool steels can keep hardness at high temperature, which makes them withstand the high temperature and wear of high-speed cutting tools Their tungsten content varies with the alloy, but can be as high as 18.75% These steels also contain carbon and often a certain proportion of molybdenum, chromium and vanadium In addition, small amounts of copper, nickel and phosphorus are sometimes used High speed tungsten steel is often used in the production of saw blades, faucets, drills and other equipment Due to wear resistance, it is sometimes used for hand tools, such as chisels and kitchen knives Tungsten is also the main alloy element of some hot working tool steels (for the production of high temperature resistant tool steels) In addition, the hot working tool steel must withstand the pressure (thermal shock) caused by the rapid change of temperature Hot working tungsten steels usually contain high chromium and sometimes vanadium It is used for extruding and forging dies and other equipment for processing other heating metals.