High Quality Fused Quartz Powder -270f

• 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 top-quality Fused Quartz Powder -270f. Buy online for the best service and quality!

Product Description

Discover Grade A Fused Silica sand & powder by Lianyungang Chemsize International Trading Co., Ltd. Perfect for various industrial 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%

High Quality Fused Quartz Powder -270f with thermal conductivity of 1.3w/m*k(20 ºC), dielectric constant of 3.8(1MHz,20), 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.

Fused Silica 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

Fused Silica Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC applications


• Solar crucible manufacturing


• Quartz marble production


• Powder coating

Other 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

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 source high purity silica sand (SiO2 > 99%) from Donghai/Xinyi for our production process.

Manufacturing Process

The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingot, which is then cooled and processed into fused silica lump, sand, and powder based on customer requirements.

Company Information

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

Detailed Photos

Discover high-quality Fused Quartz Powder -270f for sale online. Buy affordable, top-grade silica grains from a reliable supplier.

Packaging & Shipping

High Quality Fused Quartz Powder -270f in 25kg plastic woven bags on pallets. Buy online from a top supplier for manufacturing needs.

Explore our top-quality Fused Quartz Powder -270f for sale. Buy online from the best supplier for industrial use.

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 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 string, plastic, 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

Chemsize, a leading manufacturer of Fused Silica grains and powders, offers high-quality materials for various industries. Our Fused Silica has a fusion ratio of up to 99.9% Amorphous SiO2, low iron content (max 30ppm), and minimal impurities, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity.

Our unique electric-arc fusion technique produces Fused Silica with over 99.9% SiO2 purity, excellent thermal properties, and ISO-certified standards. Chemsize Fused Silica is chemically stable, inert, and has extremely low conductivity.

Key Features:

• Low thermal expansion coefficient


• Consistent chemistry


• Controlled particle size distribution

Applications:

• Solar cell crucibles


• Glass industry tools


• Technical ceramics


• Investment casting slurries

We offer a range of products tailored for specific applications, including ramming mixes, castables, and EMC fillers. Our standard packaging includes 25kg bags, 48 bags per pallet, or jumbo bags with a net weight of 1200kgs.

Investment Casting Grade:

Our Fused Silica is ideal for precision investment casting in industries such as automotive, aerospace, and medical, ensuring high-quality and precise castings.

Choose Chemsize Fused Silica for superior performance and reliability in your applications!

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

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

Advantages of Fused Silica:

1. Particle shape: Improved particle shape for better primary slurry.


2. Decreased material consumption: Fused Silica is lighter, reducing material usage.


3. Increased permeability and porosity: Enhances shell quality.


4. Easier knock-out: Facilitates shell removal post-casting.


5. Faster leaching and shell removal: Streamlines the process.


6. Consistency and sustainability: Highly consistent sourcing from the world's largest Fused Silica production area.


7. Cost-effective: Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT.

Application Areas:

Widely used in coreless medium frequency furnaces and core induction furnaces for various metal melting applications.

FAQ:

Q1. Can I have a sample order for fused silica products?
A: Yes, we provide free samples shipped via ***/FEDEX/DHL.

Q2. What about the lead time?
A: Samples are sent within 3-5 days; orders under 100mt are delivered within 15 days.

Q3. Do you have any MOQ limit for fused silica sand order?
A: No, but lower quantities may incur higher costs.

Q4. How do you ship the goods and how long does it take to arrive?
A: Shipping methods vary, and delivery times depend on the destination.

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