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The strategic value of tungsten came to notice in the early 20th century. British authorities acted in 1912 to free the Carrock mine from the German owned Cumbrian Mining Company and, during World War I, restrict German access elsewhere. [53] In World War II, tungsten played a more significant role in background political dealings.
The Wolfram Crisis (Spanish: Crisis del wolframio) was a diplomatic conflict during World War II between Francoist Spain and the Allied powers, which sought to block Spanish exports of tungsten ore to Nazi Germany. "Wolfram" is an alternate name for tungsten, a strategic material used in anti-tank weapons and machine tools.
Wolframite is highly valued as the main source of the metal tungsten, a strong and very dense material with a high melting temperature used for electric filaments and armor-piercing ammunition, as well as hard tungsten carbide machine tools. During World War II, wolframite mines were a strategic asset, due to its use in munitions and tools. [13]
Ferrotungsten is relatively expensive, with the prices around $31–44 per kilogram of contained tungsten. [4] During World War 2, over 21,000,000 lb of Ferro-tungsten and other ferroalloys were shipped to Russia on lend-lease. [3] The cost was more than $12,000,000. Ferrotungsten comes from rich ore raw materials primarily of wolframite or ...
Tungsten was used in hammer throw balls at least up to 1980; the minimum size of the ball was increased in 1981 to eliminate the need for what was, at that time, an expensive metal (triple the cost of other hammers) not generally available in all countries. [182] Tungsten hammers were so dense that they penetrated too deeply into the turf. [183]
Based on the "oral history of the zombie war" of the same name by Max Brooks, World War Z was a surprise hit at the box office when it debuted in 2013, making over $500 million worldwide.
Sangdong Mine had been a main business station for tungsten concentrate production of Korea Tungsten Mining Co.Ltd ("KTMC") with large scale and high quality of Sangdong tungsten production (the principal potential products were tungsten and molybdenum) that was the driving force of South Korean economic development since post-Korean War. At ...
Yahoo Finance chats to the makers of Tungsten Cubes and why the crypto community is fascinated by them.