Fused Silica Powder Fe2o3 < 0.003%

• 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.: 325mesh 400mesh 600mesh 800mesh 1250mesh 2000mesh
• Amorphous Sio2: >99%
• Quartz Sio2: <0.1%
• Cristobalite Sio2: <0.1%
• Thermal Conductivity: 1.3W/M*K
• Dielectric Constant: 3.8(1MHz,20 )
• Electrical Conductivity: 3us/Cm
• 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 the best quality Fused Silica Powder Fe2O3 <0.003% from Lianyungang Chemsize International Trading Co., Ltd. Perfect for various industrial applications!

Product Description

Discover our Grade A Fused Silica Powder with Fe2O3 content below 0.003%. Perfect for various applications requiring high purity and low iron content. Buy now!

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%

Fused Silica Powder with ultra-low Fe2O3 content, ideal for high-temperature applications. Top-quality product from Lianyungang Chemsize International Trading Co., Ltd.

		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

Fused Silica

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

Special Features:

• High purity amorphous powder


• Lowest coefficient of thermal expansion


• High resistance to thermal shock


• Low thermal conductivity


• Excellent electrical insulation and lower radiation

Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC


• Solar crucible


• Quartz marble


• Powder coating


• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refactories


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting


• Artificial marble

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. Particle size can be produced as per 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 is a 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 in aluminum launders.

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 our premium Fused Silica Powder with Fe2O3 content below 0.003%. Perfect for high clarity pictures and various industrial applications.

Packaging & Shipping

Fused Silica Powder with Fe2O3 content below 0.003%, packaged in 25kg plastic woven bags on pallets. Available from Lianyungang Chemsize International Trading Co., Ltd.

Lianyungang Chemsize International Trading Co., Ltd. offers top-quality Fused Silica Powder with Fe2O3 content below 0.003%. Ideal for various industrial applications.

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 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 be free of foreign materials like string, plastic, carbon, wood, metal, or other contaminants.


• Only conditional black dots are allowed; all other 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, offers high-quality materials for various industries. Our Fused Silica has a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (30ppm max), 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. It has a low coefficient of thermal expansion, high thermal shock resistance, and meets ISO-certified standards. Chemsize Fused Silica is chemically stable, inert, and has extremely low conductivity.

Our products include specialty blends and homogeneously-blended materials for specific applications. With a low thermal expansion coefficient, consistent chemistry, and controlled particle size distribution, our Fused Silica is ideal for foundry, refractory, investment casting, and other specialized uses.

Applications of Chemsize Fused Silica include crucibles for solar cell production, rollers in the glass industry, technical ceramics, ceramic slurry for investment casting, and more. Our products are available in various forms like precast shapes, big blocks, ramming mixes, and resin fillers.

For investment casting, our Fused Silica ensures volume stability and tight tolerance castings. We offer standard packaging in 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. Customized bulk bag shipments are also available.

Experience the exceptional performance of Chemsize Fused Silica in your industry today!

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a premium raw material for investment casting processes, offered by Lianyungang Chemsize International Trading Co., Ltd. With over 30 years of experience, we are a leading supplier in the industry.

Key Advantages:

• Particle Shape: Our Fused Silica flour boasts superior particle shape, crucial for primary slurry formation.


• Decreased Material Consumption: With half the density of Zircon, Fused Silica allows for reduced material usage without compromising quality.


• Enhanced Permeability and Porosity: Fused Silica's lighter composition improves shell permeability and porosity.


• Easier Knock-Out: Fused Silica facilitates easier shell removal post-casting due to its unique properties.


• Efficient Leaching and Shell Removal: Fused Silica aids in the leaching process and simplifies shell material removal.


• Consistency and Sustainability: Our Fused Silica, sourced from the world's largest production area, offers consistent quality and availability.


• Affordability: Priced at US$0.56/kg FOB LIANYUNGANG PORT, Fused Silica is a cost-effective choice.

Application Areas:

Our Fused Silica is ideal for use in induction furnace lining ramming materials, offering high performance in various casting applications.

FAQ:

Sample Order: We offer free samples for testing via ***/FEDEX/DHL.

Lead Time: Samples are dispatched within 3-5 days, while bulk orders are delivered within 15 days for quantities up to 100mt.

MOQ: No minimum order quantity, but lower quantities may incur higher average costs.

Shipping: We ship globally, with delivery times varying based on location.