High Whiteness Amorphous Silicon Oxide Grains

• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Fused Silica Sand: 0-1mm,1-3mm,3-5mm,4-10mesh,10-20,20-50,50-100mesh
• Fused Silica Powder: -100,-120f,-150L,200f,270f,325mesh
• Fe2o3: <0.003%
• Al2O3: <0.03%
• Model NO.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• 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

Discover high whiteness amorphous silicon oxide grains from Lianyungang Chemsize. Premium fused silica for superior quality and service.

Product Description

Grade A Fused Silica Sand & Powder Specifications:

Explore our High Whiteness Amorphous Silicon Oxide Grains for various applications like investment casting, thermal shock resistance, and more. Discover our top-quality fused silica products today!

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/cm^3
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%
	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

Discover our High Whiteness Amorphous Silicon Oxide Grains for various applications like investment casting, thermal shock resistance, and more.

		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

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

Fused Silica Special Feature:

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

Fused Silica Applications:

Fused Silica is used in industries such as thermal ceramics, refractories, investment casting, EMC, solar crucibles, quartz marbles, powder coating, etc.

Fused Silica Available Sizes:

0-1mm, 1-3mm, 3-5mm, 0.2-0.5mm, 0.1-0.5mm, 0.212-0.425mm, 0.125-0.212mm, -0.044mm, -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. Particle sizes can be produced according to customer's special requirements.

For more information, contact Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Fused Silica Production Process

Lianyungang Chemsize International Trading Co., Ltd.

Fused Silica Production Process

Fused silica is high purity quartz sand that has been melted to form glass. Its high volume stability, low volumetric expansion, and high purity make fused silica a versatile material for refractory applications, such as aluminum launders.

We strictly choose high purity silica sand (SiO2 > 99%) from local Donghai/Xinyi as our raw material. The melted silica sand becomes amorphous silicon dioxide glassy ingot after being fused at high temperatures (2000-2300 ºC) and cooling. We further process the products into fused silica lump, sand, and powder according to customer's requirements.

Detailed Photos

Discover our High Whiteness Amorphous Silicon Oxide Grains, ideal for various applications like investment casting, thermal shock resistance, and induction furnace lining. Achieve superior quality with our low iron fused silica.

Packaging & Shipping

High Whiteness Amorphous Silicon Oxide Grains in 25kg Fused Silica Plastic Woven Bags on Pallets. Ideal for various industrial applications.

Explore our High Whiteness Amorphous Silicon Oxide Grains for various applications like investment casting, thermal shock resistance, and electrical conductivity.

Fused Silica Product Description

Fused Silica Making Process

Fused Silica is produced using high purity crystal silica from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The material is then specially engineered into lumps, cullet, ingots, sand, grain, granular, and powder flour forms. These are designed for various applications such as PV fused silica crucible, thermal ceramic, refractory, EMC investment casting ceramic shell, etc.

Fused Silica Sand Appearance and Specifications:

• Must not contain any unfused parts.


• Should not have any foreign materials like string, plastic line, carbon, wood, metal, or other contaminants.


• Only conditional black dots are allowed; all other color dots are forbidden.


• Black spot diameter should not exceed 2mm.


• Total black dots quantity should be less than 10 per square meter when opening the big bag.

For any inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Chemsize is a leading manufacturer of Fused Silica, offering high-quality grains and powders for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers.

Key Features:

• Amorphous SiO2 content up to 99.9% min


• Low iron (30ppm max) and low impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Manufacturing Process:

At Chemsize, we use a unique electric-arc fusion technique to produce Fused Silica of the purest quality in China. Our products meet ISO-certified standards and are carefully engineered for specific applications.

Applications:

Our Fused Silica is used in various industries for applications such as making crucibles for solar cells, rollers in the glass industry, technical ceramics, investment casting, and more.

Product Range:

We offer a wide range of Fused Silica products including precast shapes, big blocks, ramming mixes, resin fillers, EMC fillers, powder coatings, and more tailored to meet specific industry needs.

Investment Casting Grade:

Our Fused Silica is ideal for investment casting processes, providing volume stability and tight tolerance castings with easy shell removal.

Packaging:

We offer standard packaging in 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. Customized packaging options are available upon request.

Contact Us:

For more information on our Fused Silica products, please contact Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machines for investment casting for over 30 years.

Advantages of Fused Silica:

1. Particle shape: Improved particle shape for better primary slurry.


2. Decreased material consumption: Fused Silica is lighter, reducing material usage.


3. Increased permeability and porosity: Enhances shell quality.


4. Easier knock-out: Simplifies shell removal process.


5. Faster leaching and shell removal: Facilitates leaching process.


6. Consistency and sustainability: Highly consistent supply from China.


7. Affordable pricing: US$0.56/kg FOB LIANYUNGANG PORT.

Application Areas:

Widely used in coreless medium frequency furnace and core induction furnace for melting various metals and alloys.

FAQ:

Q1. Can I have a sample order for fused silica products?

A: Yes, we provide free samples by ***/FEDEX/DHL.

Q2. What about the lead time?

A: Samples are sent within 3-5 days. Orders under 100mt are delivered within 15 days.

Q3. Is there a minimum order quantity for fused silica sand?

A: No, but lower quantities may incur higher costs.

Q4. How are the goods shipped and what is the delivery time?

For more information, contact Lianyungang Chemsize International Trading Co., Ltd.