Nisorpa Durable 12KG Foundry Silicon Graphite Crucible Copper Casting Cup Furnace Coke Oven for Gold Silver Copper Brass Aluminum Melting

The Nisorpa graphite crucible contains 45% of C, 26% of AL2O3, 23% of SIC and 6% of SIO2 which has a stable chemical properties.

The graphite crucible is more durable than the ordinary crucibles.

Our graphite crucible is of high quality and convenient to use in the industry and lab.

Chemical composition C: 45% AL2O3: 26% SiC: 23% SiO2: 6% Specification Thickness:13mm Outer Size: 128mm/5.04'' Diameter x 145mm/5.70'' Height.

Inner Size: 102mm/4.015'' Diameter x 125mm/4.92'' Depth.

Bulk Density: 1.71g/cm2 Apparent Porosity: ≤30% Refractory Strength: ≥8.55Mpa