Molybdenum Crucibles: Mo content: 99.95%min Mo1 Density: â?¥9.8g/cm3 (Powder metallurgy sintered products) Size: ï¼?80-450ï¼?mmÃ?L(80-740)mm Tolerance: ±1mm Appearance: silver grey metal luster Applications: mainly used for smelting of rare-earth metals, high-temperature containers. Single crystal growth.