What is the metal with the highest melting point?

The metal with the highest melting point is tungsten. Tungsten is the refractory metal with the highest melting point. Generally, metals with a melting point higher than 1650℃ and a certain reserve and metals with a melting point higher than zirconium (1852℃) are called refractory metals.

Typical refractory metals are tungsten, tantalum, molybdenum, niobium, hafnium, chromium, vanadium, zirconium and titanium. As a refractory metal, the most important advantage of tungsten is its high temperature strength and good corrosion resistance to molten alkali metals and steam. The oxide volatilization and liquid oxide of tungsten occur above 1000℃.

Extended data

1. Tungsten metal has stable chemical properties, less evaporation when exposed to heat and high meshing degree, which is very suitable for manufacturing various metal gears. However, in addition to the necessary offensive equipment, many countries do not choose tungsten as the raw material for manufacturing equipment.

The most important reason is that the output of metallic tungsten is low and the mineral resources are concentrated, most of which are hidden in China. Therefore, western countries don't have enough tungsten reserves to use tungsten alloys to manufacture aero-engines on a large scale.

2. Tungsten is a high-quality aviation manufacturing material, but the output is not enough to support such a large industrial chain of aircraft manufacturing. Aeroengines made of tungsten only appear in the engines of rockets and space shuttles, while ordinary aero engines are made of rhenium and nickel.

The largest tungsten deposit in China has always had unparalleled innate advantages in high technology. In the development of equipment, we have enough reserves to appropriately increase the content of metallic tungsten. For example, the research and development of the J-20 engine has greatly increased the tungsten content and greatly improved the service life.

Baidu Encyclopedia _ Tungsten (Chemical Element)