Precision Fused Silica with Low Coefficient

• 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 International Trading Co., Ltd. offers top-quality Precision Fused Silica with Low Coefficient. Experience advanced technology and durable performance at an affordable price.

Product Description

Product Name: Precision Fused Silica with Low Coefficient

Description: Top-quality fused silica sand & powder with low thermal expansion, high purity, and advanced technology for various 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%

Particle Size Distribution

Discover Precision Fused Silica with Low Coefficient from Lianyungang Chemsize International Trading Co., Ltd. for high-quality quartz particles.

		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:

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• Carefully controlled particle size distribution

Applications:

Used in industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.

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.

The 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

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 based on customer requirements.

Company Information

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

Detailed Photos

Precision Fused Silica with Low Coefficient - High clarity images for advanced applications. Top-quality quartz grains for innovative solutions. Customized options available.

Packaging & Shipping

Our Precision Fused Silica with Low Coefficient is delivered in 25kg plastic woven bags, stacked on pallets for convenience. Trust Lianyungang Chemsize for top-quality quartz products.

Explore our Precision Fused Silica with Low Coefficient for top-quality quartz grains. Benefit from advanced technology and affordable prices.

Fused Silica Product Description

Fused Silica Making Process

Fused Silica is produced using high purity crystal silica from China Donghai-Xinyi. It is electrically fused at temperatures of 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:

1. Must not contain any unfused parts.


2. Should be free of foreign materials like strings, plastic lines, carbon, wood, metal, or other contaminants.


3. Only conditional black dots are allowed; all other color dots are prohibited.


4. Black spot diameter should not exceed 2mm.


5. 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

Lianyungang Chemsize International Trading Co., Ltd. is a leading manufacturer of Fused Silica grains and powders. Our Fused Silica materials are used in industries such as Refractory, Investment Casting, Technical Ceramic, and EMC filler, with excellent feedback from customers.

Our Fused Silica has a high fusion ratio (Amorphous SiO2 up to 99.9% min), low iron content (30ppm max), and low impurities, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity. Our unique electric-arc fusion technique ensures the highest quality Fused Silica in China, meeting ISO-certified standards.

Chemsize Fused Silica is specially engineered for foundry, refractory, investment casting, and other applications requiring extremely low thermal expansion, consistent chemistry, and controlled particle size distribution.

Applications of Fused Silica include crucibles for solar cell production, rollers in the glass industry, technical ceramics, ceramic slurry for investment casting, and more. Our products range from precast shapes to ramming mixes for various industrial needs.

For investment casting, our Teco-Sil offers volume stability and tight tolerance castings. We provide standard packaging in 25kg bags, with customization available for bulk orders.

Explore our range of Fused Silica products for diverse applications in industries such as steelmaking, glass manufacturing, and thermal resistance. Trust Chemsize for high-quality Fused Silica solutions tailored to your specific requirements.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machines for investment casting for over 30 years.

Advantages of Fused Silica:

1. Particle shape for better primary slurry performance.


2. Decreased material consumption due to lower density.


3. Increased permeability and porosity for improved shell quality.


4. Easier knock-out and shell removal process.


5. Consistent quality and sustainability from China's Lianyungang area.


6. Cost-effective pricing at US$0.56/kg FOB LIANYUNGANG PORT.

Applications:

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

FAQ:

Q1: Can I have a sample order for fused silica products?

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

Q2: What is the lead time?

A: 3-5 days for samples, within 15 days for orders under 100mt.

Q3: Is there a MOQ for fused silica sand?

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

Q4: How are goods shipped and when can they be expected?

A: Shipping details provided upon order confirmation.