Features Specifications: Molybdenum Crucible Molybdenum crucible: Features: 1) Materials: Mo 99.95% (min.) 2) Diameter: 20 - 450mm. 3) Working temperature: 1,900 DC or lower Mo-W alloy crucible: Features: 1) Material: 70% Mo + 30% W 2) Diameter: 1,00 - 450mm 3) Working temperature: 2,200 (max.)