Metal definition of non-ferrous metals

by:ShunDing     2020-04-26
Non-ferrous metals non-ferrous metals are collectively referred to as all metals except iron, manganese and chromium. Of the 109 elements discovered by 1990s, 84 were considered metals, 9 were semi-metals, and the remaining 16 were nonmetals. (Huacheng nonferrous metals market) At present, there are 54 kinds of metal minerals with proven reserves in China, namely: iron ore, manganese ore, chromium ore, titanium ore, vanadium ore, copper ore, lead ore, zinc ore, bauxite, magnesium ore, nickel ore, cobalt ore, tungsten ore, tin ore, bismuth ore, molybdenum ore, mercury ore, antimony ore, platinum group metal ( Platinum ore, palladium ore, Iridium ore, Rhodium ore, ostium ore, ruthenium ore) , Gold, silver, niobium, tantalum, beryllium, lithium, zirconium, strontium, rubidium, cesium, Rare Earth ( Yttrium ore, gadolinium ore, terbium ore, dysprosium ore, cerium ore, lanthanum ore, praseoagain ore, neodymium ore, samarium ore, europium ore) , Germanium ore, gallium ore, indium ore, thallium ore, hafnium ore, rhenium ore, cadmium ore, scandium ore, selenium ore, hoof ore, etc. The remaining 83 metals and 9 semi-metals other than iron are collectively referred to as non-ferrous metals. Non-ferrous metals in a broad sense also include non-ferrous alloys. Non-ferrous alloy is based on a non-ferrous metal (Usually greater than 50%) An alloy formed by adding one or more other elements. Non-ferrous metals can be divided into heavy metals (Such as copper, lead, zinc)Light metal (Such as aluminum, magnesium)Precious metals (Such as gold, silver, platinum)And rare metals (Such as tungsten, molybdenum, germanium, lithium, lanthanum, uranium). There are only more than 80 kinds of non-ferrous metal elements, but there are many kinds of non-ferrous alloys with different properties. The strength and hardness of non-ferrous alloy are generally higher than that of pure metal, the resistance is larger than that of pure metal, the temperature coefficient of resistance is small, and it has good comprehensive mechanical properties. Commonly used non-ferrous alloys include aluminum alloy, copper alloy, magnesium alloy, nickel alloy, tin alloy, tantalum alloy, titanium alloy, zinc alloy, molybdenum alloy, zirconium alloy, etc. Copper in non-ferrous metals is one of the earliest metal materials used by human beings. In modern times, non-ferrous metals and their alloys have become indispensable structural materials and functional materials in the fields of machinery manufacturing, construction, electronics, aerospace, nuclear energy utilization, etc. Related Label: Metal Medal
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