Low Iron Content Fused Silica Powder

• 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 Low Iron Fused Silica Powder for various industrial applications. Contact us for superior service and quality!

Product Description

Grade A Fused Silica sand & powder with low iron content for various industrial applications. High purity and transparency make it ideal for use in manufacturing processes.

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 Iron Content Fused Silica Powder with excellent thermal conductivity and dielectric properties. Ideal 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

Fused Silica

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

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

Applications:

• Thermal ceramic industry


• Refractory industry


• Investment casting


• EMC applications


• Solar crucible


• Quartz marble


• Powder coating


• Epoxy molding compound


• Epoxy potting compound


• Electrical insulation


• Refactories and ceramics


• Filler for liquid type sealants


• Various types of resin fillers


• Resin substrates


• Precision casting


• Coating and painting


• Artificial marble

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.

Reference: Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Fused Silica Production Process

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

At Lianyungang Chemsize, we specialize in the production of high-purity fused silica for various refractory applications. Our fused silica is made from locally sourced high-purity silica sand with a SiO2 content of over 99%. Through a meticulous process of melting the silica sand at temperatures between 2000-2300 ºC, we create a versatile material known for its high volume stability, low volumetric expansion, and exceptional purity.

Our fused silica products include lumps, sand, and powder, all tailored to meet the specific requirements of our customers. Whether used in aluminum launders or other highly cyclical applications, our fused silica is designed to deliver superior performance and reliability.

Choose Lianyungang Chemsize for top-quality fused silica that exceeds industry standards and enhances the efficiency of your refractory processes.

Detailed Photos

Discover our Low Iron Fused Silica Powder for high clarity pictures. Perfect for various applications requiring premium quality silica sand.

Packaging & Shipping

25kg net Fused Silica Plastic Woven Bag, palletized for delivery. From Lianyungang Chemsize International Trading Co., Ltd.

Low Iron Content Fused Silica Powder

Explore our range of high-quality fused silica products, including low iron content powder for various industrial applications. Trust Lianyungang Chemsize for superior silica solutions.

Fused Silica Making Process

Fused Silica is produced using high purity crystal silica from China Donghai-Xinyi. The process involves electrically fusing the silica at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The resulting 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:

• Must not contain any unfused parts.


• Should not have any foreign materials like string, plastic line, 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 quality and performance.

Key Features:

• High fusion ratio of up to 99.9% Amorphous SiO2


• Low iron content (max 30ppm) and minimal impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Our Fused Silica is produced using a proprietary electric-arc fusion technique, ensuring purity and quality. With over 99.9% SiO2, our Fused Silica offers excellent chemical stability and low conductivity.

Applications:

• Foundry and refractory applications


• Investment casting for volume stability


• Technical ceramic production


• Flow control in steelmaking and glass rolls

Whether you need Fused Silica for crucibles, rollers, castables, or ramming mixes, Chemsize has a wide range of products tailored to meet your specific requirements.

Product Range:

• Fused Silica precast shapes


• Fused Silica ramming mix for coreless induction furnaces


• Fused Silica for resin and EMC fillers


• Fused Silica for powder coating and ceramic welding

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

Introducing Chemsize Fused Silica

Chemsize Fused Silica is a leading supplier of raw materials and machinery for the investment casting process, with over 30 years of experience in the industry.

Advantages of Fused Silica:

• Better particle shape for primary slurry


• Decreased material consumption


• Increased permeability and porosity


• Easier knock-out and shell removal


• Consistency and sustainability


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

Application Areas:

Our Fused Silica is suitable for use in induction furnace lining ramming material, intermediate frequency furnace lining material, and dry vibration material.

FAQ:

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

A: Yes, we offer free samples by ***/FEDEX/DHL with mixed samples accepted.

Q2: What is the lead time?

A: Sample orders can be sent within 3-5 days, while delivery orders for quantities within 100mt typically take 15 days.

Q3: Is there a minimum order quantity for fused silica sand?

A: No, there is no MOQ, 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, with delivery times varying based on location.

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