Low Impurity Fused Quartz Grains 10-20mesh

• 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 Low Impurity Fused Quartz Grains 10-20mesh. Discover our range of premium silica sand and powder products!

Product Description

Discover our Grade A Low Impurity Fused Quartz Grains 10-20mesh for high-quality silica sand and powder needs. Choose our specialty fused quartz products for superior performance.

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 Low Impurity Fused Quartz Grains 10-20mesh with exceptional thermal conductivity of 1.3w/m*k at 20 ºC, dielectric constant of 3.8 at 1MHz, and electrical conductivity of 3 μs/cm. Perfect 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.

Fused Silica Special Feature:

• High purity amorphous powder


• Lowest coefficient of thermal expansion


• High resistance to thermal shock


• Low thermal conductivity


• Excellent electrical insulation and lower radiation

Fused Silica Applications:

• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refractories, ceramic


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating, painting


• Artificial marble

Fused Silica 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 a 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 an amorphous silicon dioxide glassy ingot, which is then processed into fused silica lump, sand, and powder based on customer requirements.

Detailed Photos

Discover our Low Impurity Fused Quartz Grains 10-20mesh for high clarity pictures. Perfect for industrial applications.

Packaging & Shipping

High-quality Low Impurity Fused Quartz Grains 10-20mesh in 25kg plastic woven bags, palletized for secure delivery. From Lianyungang Chemsize International Trading Co., Ltd.

Explore our Low Impurity Fused Quartz Grains 10-20mesh for top-quality fused silica products. Perfect for industrial applications requiring high purity and precision.

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 specially processed into lumps, cullet, ingots, sand, grain, granular, and powder flour forms. These 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 such as string, plastic, carbon, wood, metal, or other contaminants.


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


• Black spot diameter must 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 grains and powders, offers high-quality materials for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers. Our Fused Silica materials are known for their exceptional purity, low thermal expansion coefficient, and excellent thermal shock resistance.

Our proprietary electric-arc fusion technique ensures that our Fused Silica is over 99.9% SiO2, with low iron content and minimal impurities. The materials are carefully processed to maintain consistent chemistry and particle size distribution, making them ideal for foundry, refractory, and investment casting applications.

Chemsize Fused Silica is widely used in industries like solar cell production, glass manufacturing, and thermal resistance applications. Our products include crucibles, rollers, castables, mortars, and more, tailored to meet specific industry needs.

Whether you need Fused Silica for investment casting, resin fillers, powder coating, or ceramic welding, Chemsize has a range of products to suit your requirements. Our standard packaging options include 25kg bags, pallets, and jumbags, with the flexibility to accommodate bulk orders of varying sizes.

Experience the superior performance of Chemsize Fused Silica in your applications today!

Introducing Chemsize Fused Silica

As a leading supplier of raw materials and machinery for investment casting for over 30 years, we are proud to present Chemsize Fused Silica. Most foundries use Zircon Flour for the primary slurry, but with rising prices and short supply, we recommend Fused Silica flour for the following advantages:

• Improved particle shape for better primary slurry


• Reduced material consumption due to lower density


• Enhanced permeability and porosity for better shell quality


• Easier knock-out and shell removal process


• Consistent quality and sustainability from China's Lianyungang area


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

Fused Silica Applications:

Used in induction furnace lining ramming material, our Fused Silica is ideal for various applications in medium frequency furnaces, including melting different types of metals and alloys.

FAQ:

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

A: Yes, we offer free samples shipped via ***/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, and delivery times vary based on location.