Metal elements are the main body of chemical ele […]
Metal elements are the main body of chemical elements and are the main material resources for people to produce and live.
Tungsten (W) Among various metal elements, tungsten is the most difficult to melt and the most difficult to volatilize. Tungsten is mainly used to make alloy steel; pure tungsten is mainly used to manufacture tungsten wire in light bulbs, and also used in electronic instruments and optical instruments.
Chromium (Cr) Chromium is a silver-white metal with extremely high hardness and corrosion resistance for electroplating and special steels. In this century, when people devoted themselves to studying the hard properties of chromium, its corrosion resistance was inadvertently discovered, resulting in the birth of stainless steel. Nowadays, stainless steel and chrome-plated products have been widely used in medical equipment, drinking utensils, tableware and other fields.
Manganese (Mn) Pure manganese is hard and brittle and difficult to use in production and life, but manganese alloys have a wide range of uses. Manganese steel is both hard and tough, and is an ideal material for the manufacture of rails, bearings and armor plates.
Lithium (Li) Lithium is the lightest and hottest metal element. Lithium is not only used in the manufacture of ultra-light alloys and lithium batteries, but also an important material for cutting-edge technology. Lithium alloys can greatly reduce weight and reduce energy consumption in the aerospace industry, and play an important role in the atomic energy industry. In the metallurgical industry, lithium is often used as a deoxidizer and a deaerator to eliminate voids and bubbles in metal castings.
Titanium (Ti) Titanium has the highest specific strength (ratio of strength to specific gravity) among all metal elements. Titanium and titanium-based alloys are new structural materials that are hard and light, and are mainly used in the manufacture of aircraft, submarines, corrosion-resistant chemical equipment and various mechanical parts. Titanium alloys are ideal for aerospace materials because they maintain high strength in the temperature range of -253 to 500 °C. In steelmaking, a small amount of titanium is also a good deoxidation, nitrogen removal and desulfurization agent.