Книга: Tungsten: Chemical Element, Atomic Number, Metal, Ore, Wolframite, Scheelite, Melting Point, Allo, Carbon, Brittleness, Metalworking, Hacksaw, Superalloy

High Quality Content by WIKIPEDIA articles! Tungsten (pronounced /?t??st?n/), also known as wolfram (/?w?lfr?m/, WOOL-fr?m), is a chemical element with the chemical symbol W and atomic number 74.A steel-gray metal, tungsten is found in several ores, including wolframite and scheelite. It is remarkable for its robust physical properties, especially the fact that it has the highest melting point of all the non-alloyed metals and the second highest of all the elements after carbon. Tungsten is often brittleand hard to work in its raw state however, if pure, it can be cut with a hacksaw.