Fused Silica Lumps for Precision Casting

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

Product Description:

As a leading manufacturer, Lianyungang Chemsize International Trading Co., Ltd. offers high-quality fused silica lumps, grains, and powder for precision casting. Our premium products, including fused quartz and silica, are perfect for various casting applications. Trust us as your reliable supplier for precision casting materials.

Product Description

Grade A Fused Silica Sand & Powder Specifications

Our company, Lianyungang Chemsize International Trading Co., Ltd., offers high-quality fused silica lumps, grains, and flour for precision casting. Our products, such as fused quartz and silica powder, are perfect for various casting applications. We also provide castables, motar, and investment casting materials. Choose us as your trusted supplier for precision casting 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%

Particle Size Distribution

Explore our range of high-quality fused silica lumps for precision casting. Our products include fused silica grains, flour, and quartz for fine precision casting. We also offer recycled fused silica cullet, silica powder, and refractory quartz powder for casting applications. Trust us as your reliable supplier of precision casting materials.

		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

Fused Silica is a high-quality material with exceptional properties, making it ideal for various applications. It features an extremely low coefficient of thermal expansion, ensuring stability even in extreme temperature conditions. The consistent chemistry and carefully controlled particle size distribution further enhance its performance.

Applications

Fused Silica finds extensive use in various industries, including thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, and powder coating. Its versatility makes it a valuable material for a wide range of applications.

Available Sizes

Our Fused Silica is available in different sizes to meet specific requirements. The sizes include:

• 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

Additionally, we can produce particle sizes according to our customers' specific requirements.

For more information about our Fused Silica and other products, please contact Lianyungang Chemsize International Trading Co., Ltd.

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 an extremely 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 local 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 cooled. We further process the products into fused silica lumps, sand, and powder according to our customers' requirements.

Detailed Photos

Fused Silica Lumps for Precision Casting

Our high-quality fused silica lumps are perfect for precision casting. They are made from amorphous silicon oxide and offer exceptional clarity and durability. Trust us as your reliable supplier for precision casting materials.

Packaging & Shipping

Fused Silica Lumps for Precision Casting

25kg Net Plastic Woven Bag, Palletized

Supplier: Lianyungang Chemsize International Trading Co., Ltd.

Fused Silica Lumps for Precision Casting

Our company, Lianyungang Chemsize International Trading Co., Ltd., is a trusted supplier of high-quality fused silica lumps for precision casting. We offer a wide range of precision casting materials, including fused silica grains, flour, and quartz. Our products are known for their durability and top-quality performance. Choose us as your reliable supplier for all your precision casting needs.

Fused Silica Making Process

Fused Silica Making Process

Fused Silica is made from high purity crystal silica sourced from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The fused silica is then specially engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are designed for making PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.

Fused Silica Sand Appearance and Specifications:

1. It must not contain any unfused parts.


2. No foreign materials such as string, plastic line, carbon or wooden material, metal, or other contaminants are allowed.


3. Except for conditional black dots, all color dots are forbidden.


4. Black spot diameter should not exceed 2mm.


5. The total quantity of black dots should be less than 10 when opening the big bag, with a maximum of 10 dots per square meter.

FAQ:

1. 
   

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

   
   

   A: Yes, we'd be happy to send samples free of charge via ***/FEDEX/DHL. Mixed samples are also acceptable.

   
   


2. 
   

   Q2. What is the lead time?

   
   

   A: It takes 3-5 days to send samples. For orders with a quantity within 100mt, the delivery time is usually within 15 days.

   
   


3. 
   

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

   
   

   A: No, there is no minimum order quantity. However, the average cost will be higher for smaller orders.

   
   


4. 
   

   Q4. How are the goods shipped and how long does it take to arrive?

   
   

   A: We usually ship via DHL, UPS, FedEx, or ***, which takes around 3-5 working days to arrive. Shipping by sea may take 7-40 days, depending on the distance.

   
   


5. 
   

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

   
   

   A:
   

   
   
   1. Let us know your requirements or application.
   
   
   2. We will provide a quote based on your requirements or our suggestions.
   
   
   3. Once you confirm the samples, pay the deposit for the formal order.
   
   
   4. We will arrange the production.
   
   
   
   
   
   


6. 
   

   Q6. Can I print my logo on the packages?

   
   

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

   
   


7. 
   

   Q7: How do you handle faulty products?

   
   

   A: Firstly, our products are produced under strict quality control, resulting in a defective rate of less than 0.2%. However, if any issues arise, we will arrange to send new products to you and cover all your losses.

   
   

For any further questions, kindly contact us at Lianyungang Chemsize International Trading Co., Ltd.