Fine Fused Silica Grains for Casting

• Customization: Available
• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Model NO.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• Type: Quartz
• 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

We are Lianyungang Chemsize International Trading Co., Ltd., a leading manufacturer of fine fused silica grains for casting. Our high-quality silica grains are perfect for refractory applications. Choose us for the best service and quality!

Product Description

Grade A Fused Silica Sand & Powder Specifications

Discover our range of fine fused silica grains for casting. Our high-quality silica grains are perfect for various applications, including refractory materials and investment casting. Choose from a variety of sizes and forms, such as silica sand, quartz powder, and silica flour. Trust Lianyungang Chemsize International Trading Co., Ltd. for all your fused silica needs.

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 range of Fine Fused Silica Grains for Casting. Our high-quality silica grains are perfect for refractory applications. Choose from a variety of sizes to suit your needs.

		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

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

Special Feature: Fused Silica is known for its extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.

Applications: Fused Silica is widely used in various industries including thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, and powder coating.

Available Sizes:

• 0-1mm


• 1-3mm


• 3-5mm


• 0.2-0.5mm


• 0.1-0.5mm


• -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

Note: Particle size can be produced according to customer's special requirements.

Third Party Test Report

Production Process

Fused Silica 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 it a very useful and versatile material for refractory applications, such as aluminum launders or other highly cyclical applications.

At Lianyungang Chemsize International Trading Co., Ltd., we strictly choose high purity silica sand (SiO2>99%) from the local Donghai/Xinyi region 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 cooled. We further process the products into fused silica lumps, sand, and powder according to our customers' requirements.

Detailed Photos

Fused Silica High Clear Pictures:

Discover our fine fused silica grains for casting, available in various forms such as silica powder, silica sand, quartz powder, and more. Perfect for refractory applications, our high-quality silica grains ensure exceptional clarity and performance. Trust Lianyungang Chemsize International Trading Co., Ltd. for all your fused silica needs.

Packaging & Shipping

Our Fine Fused Silica Grains for Casting are packaged in a 25kg net plastic woven bag made of fused silica. The bags are then placed on pallets for easy transportation and delivery. Trust Lianyungang Chemsize International Trading Co., Ltd. for all your silica grain needs.

Fused Silica Factory and Quality Control Pictures

Explore our high-quality fused silica grains for casting at Lianyungang Chemsize International Trading Co., Ltd. Our fine silica grains are perfect for refractory applications. Browse through our factory and quality control pictures to see our commitment to excellence.

Fused Silica Making Process

Fused Silica Making Process

Fused Silica is made of high purity crystal silica from China Donghai-Xinyi by electrically fusing (fusing temperature 1800-2000ºC) to amorphous Silicon dioxide. It is then specially engineered into lumps, cullet, ingots, sand, grain, granular, and powder flour form. These forms are designed for making PV fused silica crucible, thermal ceramic, refractory, EMC investment casting ceramic shell, and more.

Fused Silica Sand Appearance and Specifications:

• It is forbidden to contain any unfused parts.


• It is forbidden to have foreign material, such as string, plastic line, carbon or wooden material, metal, or other outside contaminants.


• All color dots are forbidden except conditional black dots.


• Black spot diameter larger than 2mm is not acceptable.


• Total black dots quantity should be less than 10 when opening the big bag, equal to or less than 10 dots per square meter.

FAQ:

1. 
   

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

   
   

   A: Yes, we'd like to send samples free of charge by ***/FEDEX/DHL. Mixed samples are acceptable.

   
   


2. 
   

   Q2. What about the lead time?

   
   

   A: It is 3-5 days for sending samples. It is usually within 15 days to deliver orders for quantities within 100mt.

   
   


3. 
   

   Q3. Do you have any MOQ limit for fused silica sand order?

   
   

   A: No. But the less the average cost higher.

   
   


4. 
   

   Q4. How do you ship the goods and how long does it take to arrive?

   
   

   A: We usually ship by DHL, UPS, FedEx, or ***. It usually takes 3-5 working days to arrive. It depends on the distance by sea, which can take 7-40 days.

   
   


5. 
   

   Q5. How to process an order for fused silica powder products?

   
   

   A:
   

   
   
   1. Let us know your requirements or application.
   
   
   2. We quote according to your requirements or our suggestions.
   
   
   3. Customer confirms the samples and pays a deposit for the formal order.
   
   
   4. We arrange the production.
   
   
   
   
   
   


6. 
   

   Q6. Is it OK to print my logo on packages?

   
   

   A: Yes. Please inform us formally before our production and confirm the design based on our sample.

   
   


7. 
   

   Q7: How to deal with the faulty?

   
   

   A: Firstly, our products are produced in a strict quality control system, and the defective rate will be less than 0.2%. Secondly, if it happens, we shall arrange to send new products to you and pay for all your losses.

   
   

Any questions, kindly contact us please!

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