Specialized Fused Silica Materials for Welding

• 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. specializes in high-quality fused silica materials for welding applications. Our products offer premium quality and exceptional service.

Product Description

Discover our premium Grade A Fused Silica sand & powder for welding applications. Trust Lianyungang Chemsize International Trading Co., Ltd. for specialized materials.

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 specialized fused silica materials for welding, offering fine silica particles and versatile aggregate options.

		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:

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.

Raw Material

We strictly choose high purity silica sand (SiO2 > 99%) from Donghai/Xinyi as our raw material.

Manufacturing Process

The silica sand is melted at high temperatures (2000-2300 ºC) to form amorphous silicon dioxide glassy ingots, which are then cooled. The products are further processed into fused silica lumps, sand, and powder according to customer requirements.

Company Information

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

Detailed Photos

Discover our premium Fused Silica materials for welding applications, offering high clarity and exceptional performance. Trust Lianyungang Chemsize for specialized solutions.

Packaging & Shipping

Discover our premium Fused Silica materials for welding applications. Specialized, high-quality products for industrial needs.

Explore our premium fused silica materials for welding, offering high-purity, durable solutions for industrial applications.

Fused Silica Product Description

Welcome to Lianyungang Chemsize International Trading Co., Ltd.

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 resulting material is engineered 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:

• Must not contain any unfused parts.


• Should be free of foreign materials such as string, plastic, carbon, wood, metal, 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 the big bag.

For any inquiries, please feel free to contact us!

Chemsize Fused Silica Products

Welcome to 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.

Key Features:

• Amorphous SiO2 up to 99.9% min


• Low iron content (30ppm max)


• Low impurities for superior quality


• Low coefficient of thermal expansion


• High resistance to thermal shock


• Extremely low electrical conductivity

Production Process:

At Chemsize, we use a proprietary electric-arc fusion technique to create Fused Silica with over 99.9% SiO2 purity. Our products adhere to ISO-certified standards, ensuring top-notch quality and performance.

Applications:

Our Fused Silica is ideal for various industries, including foundry, refractory, investment casting, and more. It is widely used in applications such as solar cell production, glass industry tools, and ceramic manufacturing.

Product Range:

We offer a wide range of Fused Silica products, including crucibles, castables, mortars, ramming mixes, and more. Our tailored shipments cater to customers' specific needs, with options for bulk bags of varying sizes.

Investment Casting Grade:

Our Fused Silica is perfect for investment casting processes, delivering precise and high-quality castings for various industries like automotive, aerospace, and medical.

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for more information.






Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Introducing Chemsize Fused Silica, a leading supplier of raw materials and machines for investment casting for over 30 years.

Advantages of Fused Silica:

1. Better particle shape for primary slurry


2. Decreased material consumption due to lower density


3. Increased permeability and porosity


4. Easier knock-out and shell removal


5. Consistent quality and sustainability


6. Competitive pricing at US$0.56/kg FOB LIANYUNGANG PORT

Summary:

Our Fused Silica is ideal for induction furnace lining ramming material, offering high purity and consistency for various applications.

Application Areas:

Widely used in coreless medium frequency furnace and core induction furnace for melting various metals and alloys.

FAQ:

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

A: Yes, we provide free samples by ***/FEDEX/DHL.

Q2: What is the lead time?

A: Samples are sent within 3-5 days. Orders under 100mt are delivered within 15 days.

Q3: Is there a MOQ for fused silica sand?

A: No, but lower quantities may incur higher costs.

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

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

Contact us at Lianyungang Chemsize International Trading Co., Ltd. for all your fused silica needs.