Thermally Conductive Fused Silica Grains

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 325mesh 400mesh 600mesh 800mesh 1250mesh 2000mesh
• 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%
• 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 Thermally Conductive Fused Silica Grains. We are your trusted supplier for premium silica products.

Product Description

High-quality Thermally Conductive Fused Silica Grains available from Lianyungang Chemsize International Trading Co., Ltd. Ideal for various applications requiring premium silica sand.

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%

Thermally Conductive Fused Silica Grains with a thermal conductivity of 1.3w/m*k at 20 ºC. Dielectric constant of 3.8 at 1MHz, 20 ºC. Electrical conductivity of 3 μs/cm. Particle Size Distribution.

		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 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 applications


• Artificial marble production

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 requirements.

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

Third Party Test Report

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.

Raw Material

We strictly choose high purity silica sand (SiO2 > 99%) from Donghai/Xinyi as our raw material.

Manufacturing Process

The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingot, which is then cooled. The products are further processed into fused silica lump, sand, and powder according to customer requirements.

Company Information

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

Detailed Photos

Discover our Thermally Conductive Fused Silica Grains for high clarity pictures. Supplier of premium silica sand at competitive prices.

Packaging & Shipping

Fused Silica Package and Delivery: 25kg net plastic woven bags on pallets.

Explore our Thermally Conductive Fused Silica Grains - high purity, premium quality, and excellent thermal conductivity. Get the best price from a trusted silica grains supplier.

Fused Silica Product Description

Fused Silica Making Process

Fused Silica is produced from high purity crystal silica sourced from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The material is then specially processed 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 strings, plastic lines, carbon, wood, metals, 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 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 well-received by customers worldwide.

Our Fused Silica boasts 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 blending, sieving, and grinding processes, combined with advanced particle size analysis, ensure the supply of the most suitable Fused Silica materials to our customers.

At Chemsize, we produce Fused Silica using a proprietary electric-arc fusion technique, resulting in pure Fused Silica with over 99.9% SiO2 content. Our Fused Silica is amorphous, with low thermal expansion, high thermal shock resistance, and excellent size integrity, meeting ISO-certified standards. It is chemically stable and has extremely low conductivity.

Our Fused Silica products are specially engineered for foundry, refractory, investment casting, and other specialized applications, offering low thermal expansion, consistent chemistry, and controlled particle size distribution.

Chemsize Fused Silica finds applications in various industries, including solar cell production, glass manufacturing, thermal resistance, investment casting, and more. We offer a range of products such as precast shapes, ramming mixes, resin fillers, EMC fillers, powder coatings, and more.

For investment casting, our Teco-Sil Fused Silica ensures volume stability and allows for the production of tight tolerance castings with easy shell removal.

Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs. We also accommodate custom shipments for customers requiring bulk bags of varying sizes.

Explore the versatility and quality of Chemsize Fused Silica for your industrial needs!

Welcome to Chemsize Fused Silica

Discover the advantages of using Chemsize Fused Silica in your investment casting process:

• Better particle shape for improved primary slurry


• Decreased material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and faster leaching process


• Consistent quality and sustainable sourcing from China


• Cost-effective pricing 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.

Summary:

The intermediate frequency furnace ramming material offers high purity and excellent sintering properties for various furnace applications.

FAQ:

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

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

Q2. What is the lead time for samples and bulk orders?

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

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

A: No, but lower quantities may result in higher average costs.

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

A: Goods are shipped promptly, with delivery times varying based on location.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for all your fused silica needs.