Fine Fused Silica Sand for Welding Needs

• 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

Discover top-quality fused silica sand and powder from Lianyungang Chemsize International Trading Co., Ltd. Perfect for welding needs!

Product Description

Grade A Fused Silica Sand & Powder Specifications:

Discover our Fine Fused Silica Sand for Welding Needs, available in various sizes for ceramic welding repairs, investment casting, and more. Get the best quality at competitive prices.

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 Fine Fused Silica Sand for Welding Needs, available in various sizes for ceramic welding repairs, investment casting, and more.

		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 an 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.

Company name: 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.

We strictly choose high purity silica sand (SiO2 > 99%) from local Donghai/Xinyi as our raw material. The melted silica sand becomes amorphous silicon dioxide glassy ingot after being fused at high temperatures (2000-2300 ºC) and cooling. We further process the products into fused silica lump, sand, and powder according to customer's requirements.

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

Detailed Photos

Fine Fused Silica Sand for Welding Needs - high clarity pictures available.

Packaging & Shipping

Fine Fused Silica Sand for Welding Needs in 25kg plastic woven bags on pallets. Ideal for ceramic welding repairs and investment casting.

Explore our Fine Fused Silica Sand for welding needs, perfect for ceramic welding repairs and investment casting. Get high-quality silica sand at competitive prices.

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 create amorphous Silicon dioxide. The material is then specially processed into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour. These forms are tailored 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 be free of foreign materials like strings, plastic lines, carbon, wood, metals, or other contaminants.


• Only conditional black dots are allowed; 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 when opening a big bag.

For any inquiries, please contact Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica Products

Welcome to Chemsize Fused Silica

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 our customers.

Product Features:

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


• Low iron content (30ppm max) and low impurities


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Manufacturing Process:

At Chemsize, we use a unique electric-arc fusion technique to produce Fused Silica of the purest quality in China. Our products are amorphous with ISO-certified standards, ensuring excellent chemical stability and extremely low conductivity.

Applications:

Our Fused Silica products are specially engineered for foundry, refractory, investment casting, and other specialized applications. They are ideal for use in various industries such as solar cell production, glass manufacturing, and thermal resistance applications.

Product Range:

We offer a wide range of Fused Silica products, including crucibles, rollers, castables, mortars, and more. Our products are tailored for specific applications and can be customized based on customer requirements.

Standard Packaging:

Our standard package includes 25kg bags, 48 bags per pallet, or jumbags with a net weight of 1200kgs. We also offer bulk bags in varying sizes to meet customer preferences.

Investment Casting Grade:

Our Fused Silica is ideal for investment casting, also known as Precision casting, used in various industries like automotive, aerospace, and medical sectors for manufacturing high-quality products.

Introducing Chemsize Fused Silica

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

Advantages of Fused Silica:

1. Particle shape: Our quality offers better particle shape for primary slurry.


2. Decreased material consumption: Fused Silica's lower density reduces material usage.


3. Increased permeability and porosity: Enhances shell permeability and porosity.


4. Easier knock-out: Fused Silica facilitates easier shell removal.


5. Faster leaching and shell removal: Simplifies the leaching process and shell removal.


6. Consistency and sustainability: Our Fused Silica from China ensures consistency and availability.


7. Cost-effective: Fused Silica is priced at US$0.56/kg FOB LIANYUNGANG PORT.

Application Areas:

Widely used in coreless medium frequency furnaces and core induction furnaces for various metal melting applications.

FAQ:

1. Sample order: Samples can be sent free of charge via ***/FEDEX/DHL.


2. Lead time: 3-5 days for samples, up to 15 days for orders within 100mt.


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


4. Shipping: Goods are shipped promptly with delivery times varying.

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