Investment Casting Grade Fused Silica with Low Expansion

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

Lianyungang Chemsize International Trading Co., Ltd. offers high-quality Investment Casting Grade Fused Silica with Low Expansion for various applications. Trust us for superior service and top-notch quality!

Product Description

Discover our Investment Casting Grade Fused Silica with Low Expansion for high-quality casting applications. Perfect for precision casting and thermal stability.

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 Investment Casting Grade Fused Silica with Low Expansion from Lianyungang Chemsize. Ideal for high-quality casting 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 Feature:

Fused Silica features extremely low coefficient of thermal expansion, consistent chemistry, and carefully controlled particle size distribution.

Applications:

Fused Silica is 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 the 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.

We source our raw material, high purity silica sand (SiO2 > 99%), locally from Donghai/Xinyi. The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingot, which is then processed into fused silica lump, sand, and powder based on customer requirements.

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

Detailed Photos

Explore our Investment Casting Grade Fused Silica for high-quality, low expansion casting. Ideal for various applications like induction furnace lining and investment casting resin additives.

Packaging & Shipping

Fused Silica Package and Delivery: 25kg Net Plastic Woven Bag on Pallet. Ideal for Investment Casting Grade Fused Silica with Low Expansion.

Explore our Investment Casting Grade Fused Silica for low expansion needs. High purity material perfect for various applications.

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 lumps, cullet, ingots, sand, grain, granular, and powder flour forms. These 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:

1. Must not contain any unfused parts.


2. Should be free of foreign materials such as strings, plastic lines, carbon, wood, metals, or other contaminants.


3. Only conditional black dots are allowed; all other color dots are prohibited.


4. Black spot diameter should not exceed 2mm.


5. Total black dots 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 (30ppm max), and minimal impurities, resulting in low thermal expansion, high thermal shock resistance, and low electrical conductivity. Our unique fusion technique ensures the purest quality Fused Silica in China, meeting ISO-certified standards.

Our Fused Silica products are specially engineered for foundry, refractory, investment casting, and other applications. With extremely low thermal expansion, consistent chemistry, and controlled particle size distribution, Chemsize Fused Silica is ideal for demanding industrial processes.

Applications of Fused Silica include crucibles for solar cell production, rollers in the glass industry, technical ceramics, ceramic slurry for investment casting, and more. We offer a range of products such as precast shapes, ramming mixes, resin fillers, EMC fillers, and ceramic welding materials based on Fused Silica.

For investment casting, our Teco-Sil grade Fused Silica ensures volume stability and tight tolerance castings. Our standard packaging includes 25kg bags, pallets with 48 bags, or jumbo bags with a net weight of 1200kgs. Customized bulk bag shipments are available upon request.

Choose Chemsize Fused Silica for superior performance in high-temperature applications, thermal resistance, and precision casting needs across various industries.

Introducing Chemsize Fused Silica

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

Advantages of Fused Silica:

• Better particle shape for improved primary slurry


• Decreased material consumption due to lower density


• Increased permeability and porosity for better shell quality


• Easier knock-out and shell removal process


• Consistent quality and sustainable sourcing


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

Application Areas:

Our Fused Silica products are suitable for use in induction furnace lining ramming materials, including acidic, neutral, and alkaline ramming materials. These are widely used in various types of furnaces for melting different metals and alloys.

FAQ:

1. Sample orders for fused silica products are available with free shipping.


2. Lead time for samples is 3-5 days, while delivery for orders within 100mt is typically within 15 days.


3. No minimum order quantity for fused silica sand, but lower quantities may result in higher average costs.


4. Shipping is done via ***/FEDEX/DHL with varying arrival times.

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