Fused Silica Ingots/Lumps/Cullet

Fused silica lumps/cullet Grade A introudce is as follows:Fused Silica is made of high purity crystal silica from China Donghai-Xinyi by electrically fusing (fusing temperature 1800-2000ºC) to amorphous Silicon dioxide, then is specially engineered into lumps,cullet, ingots, sand,grain,granular and powder flour form designed for making PV fused silica crucible,thermal ceramic,refractory,EMC investment casting ceramic shell etc.Fused Silica lumps/cullet Grade A XRD Report: Grade A Fused Silica lumps/cullet Specifications:   1.Physical Properties1.1CompositionSiO21.2StructureAmorphous1.3ColourTransparent or white1.4Melting Temperature approx.1750ºC1.5Specific Gravity2.21g/cm31.6Hardness 7 Mohs1.7Thermal Expansion 0.5*10-62.Chemical Properties   Grade A 30-50mm2.1SiO2>99.9%2.2Al2O3