Fused Silica Lump Third Grade(Also called C grade block)

Short Description:

Fused Silica Lump Third Grade(Also called C grade block)

High purity quartz stone in Lianyungang and Xuzhou 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 after picking treatment of high purity quartz stones for the formation of blocks, particles and powder products.

We have the advantage of using the best local raw materials

..MOQ: 20 TON ( Quantity for one 20ft container)

..We provide OEM/ODM Service

..Sample can send within 3 days.

..Lead time of one 20ft container need around 10 days.

..The company slogan:Service comes before sales,provide comprehensive technical solutions

Product Detail

Product Tags


1. Near zero thermal expansion, extremely low thermal conductivity.
2. Excellent thermal stability.
3. High purity (the SiO2 content is above 99%
4. Chemical properties are stable.
5. General mechanical production, particle size for angle type.

II. Main Areas of Application of C grade Fused silica

The third grade of Fused silica products mainly used in lining materials,high quality quartz nozzle,ceramic roller in glass industry and other refractory materials.

III. Basic Parameters

Bulk Density :2.2 g/m3
Hardness :7
Softening Point :1500°C
Melting Point :1580°C
Coefficient of Thermal Expansion :0.1
PH value :6

IV. Chemical Composition

Guaranteed Value Typical Values
SiO2 99%min 99.22%
Al2O3 500ppmmax 360ppm
Fe2O3 500ppmmax 150ppm



V. Availability Specifications

1. General C grade lump size: 0-60 mm,5-3mm,3-1mm
2. Granular C grade particle size:

0.1-0.2mm 5-3mm 3-1mm 1-0mm
20-50 mesh 40-60 mesh 70-120 mesh 10-20mm

Can be produced according to customer granularity requirements

VI. Certifications

We have SGS&ISO certificate which you can check our platform:  https://www.made-in-china.com/
We always adhere to the principle of quality first to serve customers and maintain the long-term business relationship with suppliers.

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