Ultra Low Thermal Expansion Fused Silica

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 0-1mm,1-3mm,3-5mm,5-8mm, 200mesh,325mesh,400mesh
• 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%
• 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 offers top-quality Ultra Low Thermal Expansion Fused Silica products. We specialize in precision machining, high temperature stability, and custom shapes.

Product Description

Discover our Ultra Low Thermal Expansion Fused Silica, perfect for precision machining, high temperature stability, and thermal insulation properties.

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%

Discover our Ultra Low Thermal Expansion Fused Silica, ideal for precision machining, thermal insulation, and high temperature stability. Our product offers low expansion rates and high purity for various industrial 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 Product Description

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

Fused Silica Special Feature:

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

Fused Silica Applications:

Fused Silica is used in industries such as thermal ceramics, refractories, investment casting, EMC, solar crucibles, quartz marbles, powder coatings, and more.

Available Fused Silica 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 sizes can be produced according to customer's special requirements.

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

Third Party Test Report

Production Process

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

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 it a versatile material for refractory applications.

Raw Material

We strictly select 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 ingots, which are then cooled. We further process the products into fused silica lumps, sand, and powder according to customer requirements.

Detailed Photos

Discover our Ultra Low Thermal Expansion Fused Silica for high clarity pictures. Ideal for precision machining and thermal shock resistance.

Packaging & Shipping

25kg net Fused Silica Plastic Woven Bag, palletized for delivery. Ideal for precision machining, thermal stability, and chemical inertness.

Fused Silica Factory and Quality Control Pictures

Explore images showcasing our Ultra Low Thermal Expansion Fused Silica production at Lianyungang Chemsize International Trading Co., Ltd. We specialize in high-quality, precision-engineered fused silica products 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 form 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 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 when opening the big bag.

For any inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.

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 filler applications.

Key Features:

• Amorphous SiO2 content up to 99.9%


• 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 SiO2 over 99.9%. It meets ISO-certified standards, ensuring excellent chemical stability and extremely low conductivity.

Applications:

Chemsize Fused Silica is ideal for various applications, including foundry, refractory, investment casting, and more. It is widely used in industries such as solar cell production, glass manufacturing, and thermal resistance applications.

Product Range:

We offer a wide range of Fused Silica products, including crucibles, rollers, castables, mortars, ramming mixes, and more. Our products are tailored to meet specific industry requirements and are available in various packaging options.

Investment Casting Grade:

Our Fused Silica is perfect for investment casting processes, providing volume stability and tight tolerance castings. It is widely used in automotive, aerospace, medical, and other precision manufacturing industries.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. to learn more about our premium Fused Silica products.

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:

1. Particle Shape: Our Fused Silica offers superior particle shape, crucial for primary slurry.


2. Decreased Material Consumption: Fused Silica's lower density reduces material usage, making it a cost-effective alternative to Zircon.


3. Increased Permeability and Porosity: Fused Silica enhances shell permeability and porosity compared to Zircon.


4. Easier Knock-Out: Fused Silica facilitates easier shell removal post-casting.


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


6. Consistency and Sustainability: Our Fused Silica from China's Lianyungang area ensures consistent quality and availability.


7. Cost-Effective: Chemsize Fused Silica is priced at US$0.56/kg FOB LIANYUNGANG PORT.

Application Areas:

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

FAQ:

1. Sample Order: Free samples are available for fused silica products with shipping via ***/FEDEX/DHL.


2. Lead Time: Samples can be sent within 3-5 days, while orders under 100mt are typically delivered within 15 days.


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


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

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