Non ferrous metals

Non ferrous metals: aluminum, 2113 magnesium, potassium, sodium, calcium, strontium, barium, 5261 copper, lead, zinc, tin, cobalt 4102, nickel, antimony, mercury, cadmium 1653, bismuth, gold, silver, platinum, ruthenium, rhodium, palladium, osmium, iridium, beryllium, lithium, rubidium, cesium, titanium, zirconium, vanadium, niobium, tantalum, tungsten, molybdenum, gallium, indium, thallium, germanium, rhenium, lanthanum, cerium, praseodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium Ytterbium, lutetium, scandium, yttrium and thorium.

Common metals: such as iron, aluminum, copper, zinc, etc.

Rare metals: such as zirconium, hafnium, niobium, tantalum, etc.

Aluminum

Light metals: density less than 4500kg / m3, such as titanium, aluminum, magnesium, potassium, sodium, calcium, strontium, barium, etc.

Heavy metals: density greater than 4500kg / m3, such as copper, nickel, cobalt, lead, zinc, tin, antimony, bismuth, cadmium, mercury, etc.

Noble Metal

Precious metals: they are more expensive than commonly used metals, have low crustal abundance (also known as Clarke value), a value representing the average content of chemical elements in the crust, and are difficult to purify, such as gold, silver and platinum group metals.

Quasi metallic elements: properties valence between metals and nonmetals, such as silicon, selenium, tellurium, arsenic, boron, etc.

Rare metals: including rare light metals, such as lithium, rubidium, cesium, etc;

Rare refractory metals: such as zirconium, molybdenum, tungsten, etc;

Rare dispersed metals: such as gallium, indium, germanium, thallium, etc;

Rare earth metals: such as scandium, yttrium, lanthanide metals;

Radioactive metals: such as radium, francium, polonium and uranium and thorium in actinides.

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