Low Expansion Fused Silica Grains

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 0-1mm,1-3mm,3-5mm,5-8mm, 200mesh,325mesh,400mesh
• 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%
• 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 premium Low Expansion Fused Silica Grains. We are your top Silica Sand Manufacturer providing the best service and quality!

Product Description

Discover Grade A Low Expansion Fused Silica Grains by Lianyungang Chemsize International Trading Co., Ltd. - your top supplier for high-quality silica sand and powder.

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 Low Expansion Fused Silica Grains for superior quality and performance. Perfect for various applications requiring fine silica powder.

		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

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 industries such as 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, 0.212-0.425mm, 0.125-0.212mm, -0.044mm, -0.045mm


• -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.

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

Third Party Test Report

Production Process

Fused Silica Production Process

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.

At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high purity silica sand (SiO2 > 99%) from Donghai/Xinyi as our raw material. The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingots, which are then processed into fused silica lumps, sand, and powder based on customer requirements.

Detailed Photos

Discover premium Low Expansion Fused Silica Grains from Lianyungang Chemsize International Trading Co., Ltd. Perfect for high-clear pictures.

Packaging & Shipping

25kg net Fused Silica Plastic Woven Bag, palletized for delivery. From Lianyungang Chemsize International Trading Co., Ltd.

Explore our Low Expansion Fused Silica Grains for top-quality fused quartz products. From high purity to fine silica powder, we are your trusted supplier.

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 resulting material is 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.

Fused Silica Sand Appearance and Specifications:

• Must not contain any unfused parts


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


• Only conditional black dots are allowed, no other color dots


• Black spot diameter should not exceed 2mm


• Total black dots quantity should be less than 10 per square meter

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

Chemsize Fused Silica Products

Welcome to Chemsize Fused Silica

Chemsize, a leading manufacturer of Fused Silica, offers high-quality grains and powders for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler. Our Fused Silica materials are known for their exceptional purity, low iron content, and minimal impurities, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity.

Key Features:

• Amorphous SiO2 content up to 99.9% min


• Low iron content (30ppm max)


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Our proprietary electric-arc fusion technique ensures the production of Fused Silica with over 99.9% SiO2 purity, meeting ISO-certified standards. Chemsize Fused Silica is chemically stable, inert, and has a controlled particle size distribution for optimal performance.

Applications:

• Solar cell crucibles in the photo-voltaic industry


• Rollers, castables, and mortars in the glass industry


• Technical ceramic production in the thermal resistance industry


• Ceramic slurry for investment casting

Specialty Products:

We offer a range of specialty Fused Silica products tailored for specific applications, including resin fillers, EMC fillers, powder coating, and more. Our products are ideal for foundry, investment casting, and high-temperature applications.

Investment Casting Grade:

Our Fused Silica is perfect for investment casting processes, delivering precise and high-quality castings for industries like automotive, aerospace, and medical.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for customized packaging options and bulk orders.

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:

• Better particle shape for primary slurry


• Decreased material consumption


• Increased permeability and porosity


• Easier knock-out and shell removal


• Consistency and sustainability


• Cost-effective pricing at 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:

1. Sample order available with free shipping


2. Lead time: 3-5 days for samples, 15 days for orders within 100mt


3. No MOQ limit for fused silica sand orders


4. Shipping via ***/FEDEX/DHL with varying delivery times

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