Overview
Product Description
Third Party Test Report
Production Process
Detailed Photos
Packaging & Shipping

Basic Info.

Model NO.

200 mesh 325mesh D50 3-5,6-9,10-14,15-18 microns

Al2O3

<0.03%

Amorphous Sio2

>99%

Quartz Sio2

<0.1%

Cristobalite Sio2

<0.1%

Transport Package

Paper Bag, Plastic Bag, Jumbo Bag, Pallet

Specification

SiO2>99.9%

Trademark

Chemsize

Origin

China Lianyungang

HS Code

32074000

Production Capacity

10000mt/Year

Product Description

Lianyungang Chemsize International Trading Co., Ltd. offers Elite Precision Casting Silica Sand for Crucible Making, ensuring top-notch service and quality. Choose us for all your fused silica sand and powder needs!

Grade A Fused Silica sand & powder for Elite Precision Casting and Crucible Making. High purity materials for industrial casting and investment casting.

1.	Physical Properties
1.1	Composition		SiO₂
1.2	Structure		Amorphous
1.3	Colour		Transparent or white
1.4	Melting Temperature		approx.1750ºC
1.5	Specific Gravity		2.21g/cm³
1.6	Hardness		7 Mohs
1.7	Thermal Expansion		0.5*10^-6
2.	Chemical Properties
		Grade A	Grade B	Grade C
2.1	SiO₂	>99.9%	>99.85%	>99.7%
2.2	Al₂O₃	<100ppm	<150ppm	<0.05%
2.2	The finer the power,the higher the Al2O3,as powder is produced by ball mill with Alumina ball.
2.3	Fe₂O₃	<30ppm for grain	<60ppm	<0.05%
2.4	CaO	<30ppm	<60ppm	<0.02%
2.5	Na₂O	<30ppm	<60ppm	<0.02%
2.6	K₂O	<30ppm	<60ppm	<0.02%

Particle Size Distribution

Explore Elite Precision Casting Silica Sand for Crucible Making from Lianyungang Chemsize. Ideal for investment casting and high-temperature applications.

		Standard
		10-20	30-50	50-100	-120	-200	-325
Mesh	Microns
+8	2360	<2
+12	1700	6-25
+16	1180	33-50
+20	850	25-45	<1
+30	600	13	25-40
+40	425		32-45
+50	300		15-30	<13
+70	212			30-60
+80	180		0-11			<1
+100	150			28-51	<10	<1
+140	106			4-16	7-13	<10
+200	75			<2	10-15	<10	<3
+325	45				14-20	15-30	4-11
Pan		<3	<2	<1	45-55	70-80	86-97

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

Fused Silica

Pan designates the percentage of fused silica passing the last reported screen for each size.

Special Feature:

Fused Silica features an extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.

Applications:

Fused Silica is used in the industries of thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.

Available Sizes:

0-1mm

1-3mm

3-5mm

0.2-0.5mm

0.1-0.5mm

-10mesh

10-20mesh

30-50mesh

50-100mesh

-100mesh

-150mesh

-270mesh

30-60mesh

60-120mesh

40-70mesh

70-140mesh

100-200mesh

120F

200mesh

325mesh

400mesh

600mesh

800mesh

1250mesh

etc...

The particle size can be produced as per the customer's special requirement.

Fused Silica Production Process

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

Our company specializes in the production of fused silica, a high-purity quartz sand that has been melted to form glass. Fused silica offers high volume stability, low volumetric expansion, and exceptional purity, making it an ideal material for various refractory applications.

At Lianyungang Chemsize, we source our raw material from the high-purity silica sand (SiO2 > 99%) found in Donghai/Xinyi. Through a meticulous process of melting the silica sand at temperatures ranging from 2000-2300 ºC, we produce amorphous silicon dioxide glassy ingots that are further refined into fused silica lumps, sand, and powder to meet our customers' specific requirements.

Discover Elite Precision Casting Silica Sand for Crucible Making by Lianyungang Chemsize. High-quality fused silica materials for industrial casting and investment casting applications.

Elite Precision Casting Silica Sand for Crucible Making in 25kg plastic woven bags, palletized for delivery.

Explore our Elite Precision Casting Silica Sand for Crucible Making, ideal for investment casting with high purity and precision. Perfect for industrial applications.

Fused Silica Products

Fused Silica Making Process

Fused Silica is produced from high purity crystal silica sourced from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The material is then engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are specifically designed for manufacturing PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.