High Whiteness Amorphous Silicon Oxide 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.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• 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 high whiteness amorphous silicon oxide grains for various applications. Our products include fused silica sand and powder with exceptional quality and service.

Product Description

Discover our Grade A Fused Silica sand & powder with high whiteness and low iron content. Ideal for various applications like investment casting, refractory materials, and more.

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 high whiteness amorphous silicon oxide grains from Lianyungang Chemsize. Ideal for various applications like investment casting, refractory materials, and more.

		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 ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.

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, 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 according to the customer's special requirements.

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, such as aluminum launders.

At Lianyungang Chemsize International Trading Co., Ltd., we carefully select high purity silica sand (SiO2 > 99%) from 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 based on customer requirements.

Detailed Photos

Explore our High Whiteness Amorphous Silicon Oxide Grains for top-quality fused silica pictures. Ideal for various applications like investment casting, refractory materials, and more.

Packaging & Shipping

High Whiteness Amorphous Silicon Oxide Grains in 25kg Fused Silica Plastic Woven Bags on Pallets for secure delivery.

Explore our Fused Silica Factory and Quality Control Pictures showcasing our High Whiteness Amorphous Silicon Oxide Grains. Discover our range of products including Fused Quartz Sand Grains, Ceramic Welding Powder, and more.

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 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 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, metal, or other contaminants.


• Any color dots are prohibited except for conditional black dots.


• 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 Products

Welcome to Chemsize Fused Silica Products

Chemsize, a leading manufacturer of Fused Silica, offers high-quality grains and powders for various industries. Our Fused Silica materials have received excellent feedback from our customers.

Key Features:

• Amorphous SiO2 up to 99.9% min


• Low iron content (30ppm max)


• Low impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Very low electrical conductivity

Production Process:

At Chemsize, we use a unique electric-arc fusion technique to produce Fused Silica of the purest quality in China. Our products are amorphous with a low coefficient of thermal expansion, high resistance to thermal shock, and excellent size integrity.

Applications:

Our Fused Silica products are specially engineered for foundry, refractory, investment casting, and other specialized applications in industries such as solar cell production, glass manufacturing, and thermal resistance.

Product Range:

We offer a wide range of Fused Silica products including crucibles, rollers, castables, mortars, and more for various industrial needs.

Package Options:

Our standard package is a 25kg bag, with options for bulk bags of varying sizes to suit customer preferences.

Investment Casting Grade:

Our Fused Silica is ideal for investment casting processes in industries like automotive, aerospace, and medical, ensuring precision and quality in the final products.

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

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. Our Fused Silica flour offers numerous advantages over traditional Zircon Flour:

• Better particle shape for improved primary slurry quality


• Reduced material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal process


• Consistent and sustainable sourcing from the world's largest Fused Silica production area


• Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT

Applications:

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

FAQ:

Q1: Can I request a sample order for Fused Silica products?

A: Yes, we provide free samples via ***/FEDEX/DHL with mixed samples accepted.

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

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

Q3: Is there a minimum order quantity for Fused Silica sand?

A: No, there is no MOQ, but lower quantities may incur higher costs.

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

A: Goods are shipped promptly, and delivery times vary based on location.