Specialty Fused Silica Sand for Castable Products

• 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.: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 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

Lianyungang Chemsize International Trading Co., Ltd. offers Specialty Fused Silica Sand for Castable Products, providing high-quality fused quartz blends for unique applications.

Product Description

Specialty Fused Silica Sand for Castable Products

Discover high-quality fused quartz sand blends for specialized applications. Our premium silica sand solutions offer innovative formulations tailored to your needs.

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

Explore our Specialty Fused Silica Sand for Castable Products, offering high-quality fused quartz in customized blends for unique 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

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

Special Feature:

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

Applications:

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 customer's special requirement.

Company Name: Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Product Description: Fused Silica

Fused silica is a high-purity quartz sand that has been melted to form glass. Its high volume stability, low volumetric expansion, and high purity make it an extremely useful and versatile material for refractory applications, such as in aluminum launders or other highly cyclical applications.

At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high-purity silica sand (SiO2 > 99%) from local 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 cooled and processed into fused silica lumps, sand, and powder according to customer requirements.

Detailed Photos

Discover our Specialty Fused Silica Sand for Castable Products, perfect for high-quality and customized silica sand blends. Ideal for innovative applications in various industries.

Packaging & Shipping

Specialty Fused Silica Sand for Castable Products in 25kg plastic woven bags on pallets. High-quality quartz for unique applications.

Explore our Specialty Fused Silica Sand for Castable Products, tailored for high-quality and innovative applications. Discover unique quartz blends for superior performance.

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 various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are specifically designed for making 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.


• Except for conditional black dots, all color dots are prohibited.


• 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 Products

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries. Our Fused Silica has a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (max 30ppm), and minimal impurities, resulting in low thermal expansion, excellent thermal shock resistance, and low electrical conductivity.

Our unique electric-arc fusion technique ensures the purity of our Fused Silica, exceeding 99.9% SiO2. With ISO-certified standards, our products have consistent chemistry, controlled particle size distribution, and exceptional chemical stability.

Chemsize Fused Silica is ideal for foundry, refractory, investment casting, and other specialized applications. Its low thermal expansion coefficient and thermal shock resistance make it suitable for steelmaking, glass rolls, and investment casting for volume stability.

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

Applications of Fused Silica:

• Crucibles for solar cell production


• Rollers, castables, mortars, and forming tools in the glass industry


• Technical ceramics for thermal resistance


• Ceramic slurry in investment casting

Product Range:

• Fused Silica precast shapes


• Ramming mix for coreless induction furnace


• Resin fillers, EMC fillers, powder coating


• Fused Silica bricks/blocks for hot repair


• Ceramic welding material for coking and glass industries

Investment Casting Grade:

Our Fused Silica is used in investment casting processes for precision manufacturing in various industries like automotive, aerospace, medical, and more.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting, with over 30 years of experience in the industry.

Advantages of Fused Silica Flour:

1. Improved particle shape for primary slurry


2. Reduced material consumption due to lower density


3. Enhanced permeability and porosity for better shell quality


4. Easier knock-out and shell removal process


5. Consistent quality and sustainable sourcing


6. Cost-effective pricing at US$0.56/kg FOB LIANYUNGANG PORT

Application Areas:

Fused Silica is widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.

FAQ:

1. Sample orders are available with free shipping


2. Lead time for samples is 3-5 days


3. No MOQ for fused silica sand orders


4. Shipping is done via ***/FEDEX/DHL with delivery within 15 days

Summary:

Chemsize Fused Silica offers high-quality products for induction furnace lining ramming materials, ensuring efficient and reliable performance in various applications.