Tungsten-molybdenum and tungsten-molybdenum alloy applications
Tungsten is an irreplaceable basic material and strategic resource for national economy and modern national defense. Tungsten carbide has high hardness and excellent wear resistance, and is used to manufacture various cutting tools, cutting tools, drilling tools and wear-resistant parts, known as "the teeth of industry". Molybdenum is mainly used in iron and steel industry, most of which is directly used in steelmaking or cast iron after industrial molybdenum oxide is pressed, and a small part is melted into ferro molybdenum and then used in steelmaking.
Data show that the world's proven reserves of tungsten are only 2.9 million tons, distributed in China, Canada, Russia and the United States, these four countries account for up to 84%; China is rich in tungsten reserves, accounting for about 60% of the world's proven reserves of tungsten mineral resources, ranking first in the world.
The global molybdenum reserves are about 8.6 million tons, and the distribution of molybdenum resources in the world is highly uneven, mainly distributed in China, the United States and Chile, with reserves of more than 1.1 million tons. Total global molybdenum production in 2010 was 214,000 tons of molybdenum, up 12.8% year on year. China ranks first in molybdenum production, accounting for 37.4 per cent of global production in 2010. In the first 11 months of 2011, China produced 216,000 tons of molybdenum concentrate, up 10.99% year on year.
Two elements in the same column of the periodic table. They also exhibit the same properties. Two elements in the earth's crust at an average concentration of 1.5 parts per million. Molybdenum is an essential nutrient for plants and animals. At high concentrations, molybdenum can cause poisoning which is sometimes the case from alkaline ash leachate. Tungsten is an important strategic metal and is used in a variety of industrial applications.
