Ultra-Fine Silica Grains 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.: 200 mesh 325mesh D50 3-5,6-9,10-14,15-18 microns
• 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

Discover high-quality Ultra-Fine Silica Grains for Precision Casting from Lianyungang Chemsize International Trading Co., Ltd. - your trusted fused silica sand and powder manufacturer. Experience the best service and quality!

Product Description

Grade A Fused Silica sand & powder for precision casting. High-quality materials from Lianyungang Chemsize International Trading Co., Ltd.

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

Discover our Ultra-Fine Silica Grains for Precision Casting, perfect for investment casting and refractory applications. Get high-quality fused silica materials from Lianyungang Chemsize International Trading Co., Ltd.

		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:

• Extremely low coefficient of thermal expansion


• Consistent chemistry


• Carefully controlled particle size distribution

Applications:

Used in industries such as thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, powder coating, etc.

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, etc.

The particle size can be produced as per customer's special requirement.

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

Third Party Test Report

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 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 create amorphous silicon dioxide glassy ingots, which are then processed into fused silica lumps, sand, and powder based on customer requirements.

Detailed Photos

Discover high-quality Ultra-Fine Silica Grains for Precision Casting by Lianyungang Chemsize International Trading Co., Ltd. Perfect for investment casting and refractory applications.

Packaging & Shipping

Our Ultra-Fine Silica Grains for Precision Casting come in 25kg plastic woven bags, palletized for easy delivery. Trust Lianyungang Chemsize for high-quality fused silica products.

Fused Silica Factory and Quality Control Pictures

Explore images from Lianyungang Chemsize International Trading Co., Ltd., showcasing their ultra-fine silica grains for precision casting. Witness the quality control process of their fused quartz products.

Fused Silica Product Description

Fused Silica Products by Lianyungang Chemsize International Trading Co., Ltd.

Fused Silica is meticulously crafted from high purity crystal silica sourced from China Donghai-Xinyi. Through an electric fusion process at temperatures ranging from 1800-2000ºC, the silica transforms into amorphous Silicon dioxide. Our Fused Silica is engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour, tailored for creating PV fused silica crucibles, thermal ceramics, refractories, EMC investment casting ceramic shells, and more.

Appearance and Specifications:

• Must not contain any unfused parts


• No foreign materials allowed, including string, plastic, carbon, wood, metal, or other contaminants


• Conditional black dots are permissible, but all other color dots are prohibited


• Black spot diameter should not exceed 2mm


• Total black dots quantity should be less than 10 per square meter

FAQ:

1. Sample Order: Sample orders for fused silica products are welcomed, with free samples shipped via ***/FEDEX/DHL. Mixed samples are also accepted.


2. Lead Time: Samples are dispatched within 3-5 days, while orders under 100mt are typically delivered within 15 days.


3. MOQ: No minimum order quantity, but lower quantities may incur higher costs.


4. Shipping: We ship via DHL, UPS, FedEx, or ***, with delivery times ranging from 3-5 working days for air shipments and 7-40 days for sea shipments.


5. Order Process:
   
   
   
   1. Share your requirements or application needs
   
   
   2. Receive a tailored quote
   
   
   3. Confirm samples and pay deposit for formal order
   
   
   4. Production arrangement
   
   
   
   


6. Logo Printing: Custom logo printing on packages is available upon formal request and design confirmation.


7. Handling Faulty Products: Our products undergo strict quality control, with a defective rate of less than 0.2%. In case of any issues, we will replace the products and cover any losses incurred.

For any inquiries or further assistance, please don't hesitate to contact Lianyungang Chemsize International Trading Co., Ltd.