Tungsten is a very hard dense silvery white lustrous metal that tarnishes in air forming a protective oxide coating In powder form tungsten is gray
The metal has the highest melting point of all metals and at temperatures over 1650 oC also has the highest tensile strength Pure tungsten is ductile and tungsten wires even of a very small diameter have a very high tensile strength Tungsten is highly resistant to corrosion Tungsten is one of the five major refractory metals
date_rangeNov 23' 2018 / China
date_rangeNov 22' 2018 / China
date_rangeApr 22' 2015 / China
date_rangeJun 26' 2009 / India