Dependable Fused Silica Supplier for Welding

• 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. is your dependable fused silica supplier for welding needs. Offering a wide range of sizes and top-quality materials for all your welding projects.

Product Description

Grade A Fused Silica Sand & Powder Specifications:

Dependable supplier of high-quality fused silica for welding applications. Available in various sizes and micron ranges. Contact us for customized solutions.

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 top-quality fused silica for welding from Lianyungang Chemsize. Various sizes available for all your welding needs. Trust the experts!

		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 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 according to the customer's special requirements.

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

Third Party Test Report

Production Process

Fused Silica Production Process

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

Detailed Photos

High-quality Fused Silica Supplier for Welding applications. Various sizes available for different needs. Trust our expertise for reliable solutions.

Packaging & Shipping

Dependable Fused Silica Supplier for Welding. 25kg plastic woven bags on pallet. Various sizes available. Top-quality material for welding applications.

Dependable Fused Silica Supplier for Welding

Explore our range of high-quality fused silica products for welding applications. From 30-50mesh to -100mesh, we offer customized solutions to meet your needs. Trust us as your reliable fused silica supplier.

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 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 like strings, plastic lines, 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 contact Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

Chemsize is a leading manufacturer of Fused Silica, offering high-quality grains and powders for various industries such as Refractory, Investment Casting, Technical Ceramic, and EMC fillers.

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 unique electric-arc fusion technique to create Fused Silica with over 99.9% SiO2 purity. Our products meet ISO-certified standards and are carefully engineered for specific applications.

Applications:

Our Fused Silica is used in various industries for applications such as crucibles for solar cell production, rollers in the glass industry, technical ceramics, investment casting, and more.

Product Range:

We offer a wide range of Fused Silica products including precast shapes, big blocks, ramming mixes, resin fillers, EMC fillers, powder coatings, and more.

Investment Casting Grade:

Our Fused Silica is ideal for investment casting processes, providing volume stability and tight tolerance castings for industries like automotive, aerospace, and medical.

Contact Us:

For tailored shipments or inquiries, please reach out to Lianyungang Chemsize International Trading Co., Ltd.

Chemsize Fused Silica

Welcome to Chemsize Fused Silica

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

Advantages of Fused Silica:

1. Better particle shape for primary slurry


2. Decreased material consumption


3. Increased permeability and porosity


4. Easier knock-out and shell removal


5. Consistent and sustainable sourcing


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

Application Areas:

Widely used in coreless medium frequency furnaces and core induction furnaces 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: 3-5 days for samples, within 15 days for orders up to 100mt.

Q3: Is there a MOQ for fused silica sand?

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

Q4: How are goods shipped and when do they arrive?

A: Shipping methods vary, with delivery times depending on location.