| Fused quartz blockFused quartz blocks Keywords: Fused Silica Block,  Fused Quartz  Block Material, Melting Quartz  Silica Material ,fused quartz block maker  fused silica manufacturer ,fused quartz factories ,Fusd Silica Bolck suppliers ,Molten quartz manufacturers fused quartz Company,Fused Silica Sand Powder china Plant ,Fused Silica China Supplier
 
  
 Fused Silica is made of highest purity Chinese crystal Silica by electrically fusing (fusing temperature 1700-2000℃)to amorophos Silicon dioxide , then specially engineered ingots, granular and flour form designed for different usage. This product has a very low thermal conductivity and excellent thermal shock resistance.
 
 Fused Silica Special Features:
 
Near zero thermal expansion coefficient 
Excellent thermal shock resistance 
Pure(high SiO2 content,low Iron, Potassium & Sodium Oxide) 
Consistent Chemistry 
Statistically controlled particle size distribution                                         Fused Silica  Main  Applications: 
EMC (Epoxy Molding Compound) 
Investment Casting ,shell mould product 
Refractory & Ceramic materials 
Paint 
Others 
 
 
 Fused Silica Chemical Composition:
 
 
| Item | Ingot & Granule | Powder |  
| SiO2 | 99.9% | 99.8% |  
| AL2O3 | 40ppm | 500ppm |  
| Fe2O3 | 40ppm | 50ppm |  
| Na2O | 40ppm | 50ppm |  
| K2O | 40ppm | 50ppm |  Fused Silica Physical Properties:
 
Appearance: Transparent Ingots, Granule or White Powder 
Specific Gravity: 2.21 
Hardness( Mohs): 7.0 
PH: 5-7 
Whiteness: 94Min.    Size Available: (Ingot, Granules and powder):    (1) 3-10mm, 10-50mm, 8-5mm, 5-3mm, 3-1mm, 1-0.5mm, 1-0.2mm,0-0.5mm, 0.5-0.2mm,0.5-0.1mm, 0.2-0.1mm, 0.5-1mm.
 (2) -4+10mesh, -10+20mesh, -20+50mesh, -30+50mesh,-50+100mesh, -120F,
 -200F, -325F, -400F, -600F.
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