Fused Quartz Grain First Grade with High Purity Sio2 over 99.9% for Advanced Ceramics Products with Good Price (0.5-0.2 Mesh, 3-1Mesh,10-20Mesh)

Short Description:

Also Know as A grade with high purity with Sio2 around 99.7%-99.99%.

High purity quartz stone from Donghai and Xinyi area was selected as raw material. After pickling treatment, the crystalline silica was transformed into amorphous silica with a small amount of impurity at 1700ºC high temperature in the resistance furnace. After special mechanical processing, screening, iron removal after picking treatment of high purity quartz stones for the formation of blocks, particles and powder products

Product Detail

Product Tags

I. Characteristics

1. Near zero thermal expansion, extremely low thermal conductivity.
2. Excellent thermal stability.
3. High purity (the SiO2 content is above 99.8%).
4. Chemical properties are very stable.
5. General mechanical production, particle size for angle type.


II. Main Areas of Application

The Fused quartz grain mainly used in electronic sealing,paint,coating,Silican rubber,investment casting and high-grade electrical insulation and so on. High grade quartz nozzle,Filling materials including epoxy resin casting, electronic sealing,paint, coating,etc.


III. Basic Parameters

Bulk Density :2.2 g/m3
Hardness :7
Softening Point :1700°C
Melting Point :1750°C
Coefficient of Thermal Expansion :0.1
PH value :6


IV. Chemical Composition

Guaranteed Value Typical Values
SiO2 99.7%min 99.95%
Al2O3 500ppmmax 360ppm
Fe2O3 500ppmmax


V. Availability Specifications

1. Block 0-60 mm
2. Granular


0.5-2mm 5-3mm 3-1mm 1-0mm
20-40 mesh 4-10 mesh 70-120 mesh  0.1-0.2mm

We are a quartz company which is one of the leading producing,grinding,crushing and exporting of quartz materials in Xuzhou China.
We have over 10 years production experience in precision casting and refractory materials.
We also offer a modified specification upon client requirement,Can be produced customized size and specifications to customer granularity requirements,

Products Feature

1. With lower dielectric constant; Higher purity, better electrical insulation performance, high whiteness; Very low coefficient of thermal expansion;
2. More stable chemical properties,excellent acid and alkali resistance, corrosion resistance, weather resistance.

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