Low Iron Content Fused Quartz Sand

• 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

Lianyungang Chemsize International Trading Co., Ltd. offers high-quality Low Iron Fused Quartz Sand for various industrial applications. Experience the best service and quality with us!

Product Description

Discover our Grade A Fused Silica sand & powder with low iron content, offering high purity and transparency. Perfect for industrial applications.

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%

Low Iron Content Fused Quartz Sand with thermal conductivity of 1.3w/m*k(20 ºC), dielectric constant of 3.8(1MHz,20), and electrical conductivity of 3 μs/cm. Particle Size Distribution available.

		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.

Fused Silica Special Feature:

• High purity amorphous powder


• Lowest coefficient of thermal expansion


• High resistance to thermal shock


• Low thermal conductivity


• Excellent electrical insulation and lower radiation

Fused Silica Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC applications


• Solar crucible manufacturing


• Quartz marble production


• Powder coating


• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refactories and ceramics


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting


• Artificial marble production

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, -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

High Purity Fused Silica by Lianyungang Chemsize International Trading Co., Ltd.

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 ideal material for refractory applications, such as aluminum launders.

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 processed into fused silica lumps, sand, and powder according to customer requirements.

Detailed Photos

Lianyungang Chemsize offers Low Iron Fused Quartz Sand for high clarity pictures. This premium grade silica powder ensures crystal clear results.

Packaging & Shipping

Fused Silica Package and Delivery: 25kg Net Plastic Woven Bags on Pallets by Lianyungang Chemsize International Trading Co., Ltd.

Lianyungang Chemsize International Trading Co., Ltd. presents Low Iron Fused Quartz Sand, offering high purity and transparency for various industrial applications.

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

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 ideal 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 strings, plastic lines, 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.

For any inquiries, please feel free to contact us!

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

Production Process:

Our Fused Silica is manufactured using a proprietary electric-arc fusion technique, resulting in pure silica with over 99.9% SiO2 content. It meets ISO-certified standards and offers excellent chemical stability.

Applications:

Chemsize 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 coating, 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. It is widely used in automotive, aerospace, medical, and other industries.

Packaging Options:

Standard packaging includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. Customized bulk bag sizes are available upon request.

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for investment casting processes. With over 30 years of experience, we offer high-quality Fused Silica flour as an alternative to Zircon Flour for primary slurry production.

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


• Decreased Material Consumption: With half the density of Zircon, Fused Silica allows for reduced material usage while maintaining viscosity and flow properties.


• Increased Permeability and Porosity: Fused Silica's lighter composition enhances shell permeability and porosity compared to Zircon.


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


• Faster Leaching and Shell Removal: Adding Fused Silica accelerates the leaching process and simplifies shell material removal.


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


• Affordability: Chemsize Fused Silica is competitively priced at US$0.56/kg FOB LIANYUNGANG PORT.

Fused Silica Applications:

Our Fused Silica is ideal for induction furnace lining ramming material, ensuring efficient and reliable performance in various casting applications.

Summary:

The intermediate frequency furnace ramming material, available in acidic, neutral, and alkaline variants, is suitable for a wide range of melting processes in medium frequency furnaces.

FAQ:

Sample Order: We offer free samples for evaluation, with quick delivery via ***/FEDEX/DHL.

Lead Time: Samples can be sent within 3-5 days, while bulk orders typically ship within 15 days.

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

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

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