Low Iron Fused Silica for Investment Casting

• 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.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• 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 top-quality Low Iron Fused Silica for Investment Casting. Experience the best service and quality with us!

Product Description

Grade A Low Iron Fused Silica for Investment Casting. High purity, low impurities, thermal shock resistant material ideal for investment casting applications.

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 Fused Silica for Investment Casting, a high-quality material with low impurities, thermal shock resistance, and low thermal expansion. Perfect for various applications in investment casting and beyond.

		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

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:

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.

Company: Lianyungang Chemsize International Trading Co., Ltd.

Third Party Test Report

Production Process

Fused Silica Production Process

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

Discover our high-quality fused silica products made from locally sourced high purity silica sand (SiO2 > 99%). Our fused silica is ideal for refractory applications due to its high volume stability, low volumetric expansion, and exceptional purity.

Product Features:

• High purity fused silica made from quartz sand


• Processed into lump, sand, and powder based on customer requirements


• Melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingot

Benefits:

• Excellent stability for highly cyclical applications


• Versatile material suitable for aluminum launders and more


• Customizable products to meet specific needs

Choose Lianyungang Chemsize for top-quality fused silica that meets your exact specifications.

Detailed Photos

Discover our Low Iron Fused Silica for Investment Casting, a high-quality material with low impurities, thermal shock resistance, and low thermal expansion. Perfect for various applications in the casting industry.

Packaging & Shipping

25kg net Fused Silica Plastic Woven Bag packaging for Low Iron Fused Silica for Investment Casting, delivered on pallets by Lianyungang Chemsize International Trading Co., Ltd.

Explore our Low Iron Fused Silica for Investment Casting, ideal for induction furnace lining, resin fillers, and more. High purity with low thermal expansion for superior performance.

Fused Silica Product Description

Fused Silica Making Process

Fused Silica is produced using high purity crystal silica from China Donghai-Xinyi. It is electrically fused at temperatures ranging from 1800-2000ºC to create amorphous Silicon dioxide. The material is then specially engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are 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, carbon, wood, metal, or other contaminants.


• Only conditional black dots are allowed; all other color dots are forbidden.


• Black spot diameter should 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

Chemsize, a leading manufacturer of Fused Silica, offers high-quality grains and powders for various industries. Our Fused Silica materials have received excellent feedback from customers worldwide.

• High fusion ratio (Amorphous SiO2 up to 99.9% min)


• Low iron (30ppm max) and low impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Very low electrical conductivity

Our unique electric-arc fusion technique ensures the purity of our Fused Silica, with over 99.9% SiO2 content. It has a low thermal expansion coefficient, excellent chemical stability, and ISO-certified standards.

Chemsize Fused Silica is ideal for foundry, refractory, investment casting, and other specialized applications. It is highly insulative, with low thermal conductivity and exceptional thermal shock resistance.

We offer standard packaging in 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. Customized bulk bag shipments are available upon request.

Applications of Fused Silica:

• Solar cell crucibles in the photo-voltaic industry


• Rollers, castables, mortars, and forming tools in the glass industry


• Technical ceramics in the thermal resistance industry


• Ceramic slurry in the investment casting industry

Explore our range of Fused Silica products tailored for various applications, including investment casting, refractory materials, EMC fillers, powder coating, and more.

Investment Casting grade Fused Silica is perfect for precision casting in automotive, aerospace, medical, and other 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. Our Fused Silica flour offers numerous advantages over traditional Zircon Flour:

• Particle Shape: Our Fused Silica boasts superior particle shape, crucial for primary slurry formation.


• Decreased Material Consumption: With half the density of Zircon, Fused Silica allows for reduced material usage.


• Increased Permeability and Porosity: Fused Silica's lighter composition enhances shell permeability and porosity.


• Easier Knock-Out: Fused Silica facilitates easier shell removal post-casting.


• Faster Leaching and Shell Removal: Fused Silica aids in the leaching process, simplifying shell removal.


• Consistency and Sustainability: Our Fused Silica, sourced from the world's largest producer in China, offers consistent quality and availability.


• Affordability: Chemsize Fused Silica is competitively priced at US$0.56/kg FOB LIANYUNGANG PORT.

Fused Silica Applications:

Our Fused Silica is ideal for induction furnace lining ramming material, ensuring efficient and reliable performance in various casting processes.

FAQ:

Q1. Can I request a sample order for Fused Silica products?

A: Yes, we offer free samples shipped via ***/FEDEX/DHL.

Q2. What is the lead time for samples and bulk orders?

A: Samples are dispatched within 3-5 days, while bulk orders typically ship within 15 days for quantities up to 100mt.

Q3. Is there a minimum order quantity for Fused Silica sand?

A: No, there is no MOQ requirement, but lower quantities may incur higher costs.

Q4. How are goods shipped and what is the estimated delivery time?

A: Goods are shipped promptly, with delivery times varying based on location and shipping method.

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