99.93%pure tungsten crucibles for the high melting temperature application,the thickness can reach 4mm .pure-purity,high-density,no internal crack.
Tungsten crucible is mainly used for rare earth,sapphire single crystal growth furnace,quartz glass,metal extracting,metalurgica industry,machinery processing,glass and ceramic industry,etc.
Chemical composition: tungsten>99.93%
Density:>18.3G/CC
Specification:Diameter:Dia5-Dia100mm,Height:H5-100mm
Surface finish:<Ra3.2 shinning furnace
Working temperature:1800--2600 in vacuum or deoxidize atmosphere
Produce Method:power metallurgy.