Graphite Furnace Casting Foundry Crucible Melting Tool 4.4LB Specifications: Refractoriness ≥1635 ℃ Carbon content ≥41.46% Porosity ≤32% Bulk density ≥1.71g / cm3 Capacity: 2kg/4.4lb OD 80mm x H 95mm Package Included: 1 x Graphite crucible