High Purity Silica Flour D50 3-5 Microns for Investment Casting

• Certification: ISO
• Application: Rubber, Ceramic, Casting
• Type: Quartz
• 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%
• Model NO.: 200 mesh 325mesh D50 3-5,6-9,10-14,15-18 microns
• 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 Silica Flour for Investment Casting Industry. Our products include Fused Quartz Sand, Silicon Oxide Powder, and more.

Product Description

Grade A Fused Silica sand & powder for investment casting industry. High purity silica material for precision foundry supplies.

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 Silica Flour for Investment Casting Industry from Lianyungang Chemsize International Trading Co., Ltd. Ideal for various applications like investment casting, molding compound filler, 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 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.

For more information, contact 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 according to customer requirements.

Detailed Photos

Discover our high-quality Silica Flour for Investment Casting Industry, perfect for precision foundry supplies and high-temperature applications.

Packaging & Shipping

Our Fused Silica Package includes 25kg plastic woven bags, delivered on pallets for convenience. Ideal for investment casting industries.

Explore our Fused Silica Factory and Quality Control Pictures at Lianyungang Chemsize International Trading Co., Ltd. for top-quality Silica Flour for Investment Casting Industry.

Fused Silica Product Description

Fused Silica Products by Lianyungang Chemsize International Trading Co., Ltd.

Fused Silica is a high purity crystal silica product made through an electric fusion process in China Donghai-Xinyi. It is engineered into various forms such as lumps, cullet, ingots, sand, grain, granular, and powder flour for applications like PV fused silica crucible, thermal ceramic, refractory, EMC investment casting ceramic shell, and more.

Fused Silica Sand Appearance and Specifications:

• No unfused parts


• No foreign materials like string, plastic, carbon, metal, etc.


• Conditional black dots allowed, but no other color dots


• Black spot diameter should be less than 2mm


• Total black dots quantity should be less than 10 per square meter

FAQ:

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

A: Yes, we offer free samples shipped by ***/FEDEX/DHL. Mixed samples are acceptable.

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

A: Samples are sent within 3-5 days. Bulk orders usually ship within 15 days for quantities up to 100mt.

Q3: Is there a minimum order quantity for fused silica sand?

A: No, but lower quantities may result in higher average costs.

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

A: We ship via DHL, UPS, FedEx, or *** with delivery in 3-5 working days. Sea shipments take 7-40 days depending on distance.

Q5: What is the order process for fused silica powder products?

1. Share your requirements or application


2. We provide a quote based on your needs


3. Confirm samples and pay deposit for formal order


4. We proceed with production

Q6: Can my logo be printed on the packages?

A: Yes, inform us before production to confirm the design based on our sample.

Q7: How are faulty products handled?

A: Our products have a low defective rate. If issues occur, we will send replacements and cover any losses.

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