High Thermal Shock Resistance Fused Quartz Grains

• 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 fused silica sand and powder for superior thermal shock resistance. Trust us for the best service and quality!

Product Description

High Thermal Shock Resistance Fused Quartz Grains for various industrial applications. Premium quality silica sand and powder available.

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%

High Thermal Shock Resistance Fused Quartz Grains with thermal conductivity of 1.3w/m*k, dielectric constant of 3.8, and electrical conductivity of 3 μs/cm. Ideal for various 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 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.

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

Third Party Test Report

Production Process

Fused Silica Production Process

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

At Lianyungang Chemsize, we specialize in the production of high-purity fused silica for various refractory applications. Our fused silica is made from locally sourced high-purity silica sand with a SiO2 content of over 99%. Through a meticulous process of melting the silica sand at temperatures between 2000-2300 ºC, we create amorphous silicon dioxide glassy ingots that are then further processed into fused silica lumps, sand, and powder to meet our customers' specific requirements.

Key Features:

• High volume stability


• Low volumetric expansion


• High purity (SiO2>99%)

Benefits:

• Versatile material for refractory applications


• Suitable for highly cyclical applications like aluminum launders

Choose Lianyungang Chemsize for top-quality fused silica products that meet your exact specifications.

Detailed Photos

Discover our High Thermal Shock Resistance Fused Quartz Grains for clear, high-quality pictures. Perfect for various applications.

Packaging & Shipping

High Thermal Shock Resistance Fused Quartz Grains in 25kg plastic woven bags on pallets. Supplier of premium fused silica sand.

Explore our High Thermal Shock Resistance Fused Quartz Grains for premium quality and durability. Perfect for various industrial applications.

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


• Only conditional black dots are allowed; all other color dots are forbidden.


• Black spot diameter should not exceed 2mm.


• Total quantity of black dots 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

Welcome to Chemsize Fused Silica Products

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler applications. Our Fused Silica materials are renowned for their exceptional quality and performance.

Key Features of Chemsize Fused Silica:

• Amorphous SiO2 content up to 99.9% for superior purity


• Low iron content (max 30ppm) and minimal impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

At Chemsize, we utilize a proprietary electric-arc fusion technique to produce Fused Silica with over 99.9% SiO2 content. Our products adhere to ISO-certified standards, ensuring consistent quality and performance. Whether for foundry, refractory, investment casting, or specialized applications, Chemsize Fused Silica is the ideal choice.

Applications of Chemsize Fused Silica:

• Solar cell crucibles in the photo-voltaic industry


• Rollers, castables, and mortars in the glass industry


• Technical ceramics for thermal resistance applications


• Ceramic slurry in investment casting processes

Our Fused Silica products are available in various forms, including precast shapes, big blocks, ramming mixes, and more. With exceptional thermal properties and chemical stability, Chemsize Fused Silica is the preferred choice for demanding industrial applications.

Investment Casting Grade:

Our Fused Silica is ideal for investment casting processes, delivering precise and high-quality castings for automotive, aerospace, medical, and other industries. Experience the benefits of precision casting with Chemsize Fused Silica.

Contact us today to discover the full range of Chemsize Fused Silica products tailored to meet your specific industrial needs.

Introducing Chemsize Fused Silica

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

Advantages of Fused Silica:

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 sustainability compared to Zircon.


6. Cost-effective pricing at US0.56/kg FOB LIANYUNGANG PORT.

Application Areas:

Widely used in coreless medium frequency furnaces and core induction furnaces for melting various metals and alloys.

FAQ:

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

A: Yes, we offer 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 delivery time?

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