Specialty Fused Silica Sand 20-50 for Precision 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.: 10-20mesh, 20-50, 30-50, 50-100, 200mesh 325mesh
• 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

We are Lianyungang Chemsize International Trading Co., Ltd., a leading manufacturer of ultra-fine fused silica powder. Our high-quality product is perfect for various applications, including investment casting, refractory materials, and more. Trust us for superior silica powder!

Product Description

Product Name: Ultra-Fine Fused Silica Powder

Keywords: Fine Silica Powder, Silica Grains, Silica Flour, Quartz Powder, Quartz Sand, Amorphous Silica, Silicon Oxide, Refractory Powder, Silica Sand, Fused Quartz Powder, Fused Quartz Sand, Silica Cullet, Fused Silica Lumps, Quarzglas Powder, Castable Refractory, Silica Motar, Investment Casting Powder, Silica Grit, High-Quality Silica Powder, Ultra-Fine Quartz Powder, Premium Silica Grains, Refined Silica Flour, Top Grade Silica Sand, Superior Fused Quartz, Impurity-Free Silica Powder, Pure Quartz Powder, Fine-Grained Silica Sand, Smooth Silica Powder, Enhanced Fused Quartz, Ultra-Fine Silica Grains, Superior Silica Flour, Premium Quartz Sand, Refined Silica Cullet, Fine Fused Silica Lumps, Top Quality Quarzglas, Specialty Castable Refractory, High-Density Silica Motar, Fine Investment Casting Powder, Extra-Fine Silica Grit

Specifications: Grade A Fused Silica sand & powder

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

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

Our Ultra-Fine Fused Silica Powder is a top-quality product that offers a wide range of applications. With its fine particle size distribution, it is perfect for use in refractory materials, investment casting, and more. Choose our premium silica powder for superior results.

		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

Special Feature: Fused Silica features an extremely low coefficient of thermal expansion, consistent chemistry, and a carefully controlled particle size distribution.

Applications: Fused Silica is widely used in various industries including thermal ceramic, refractory, investment casting, EMC, solar crucible, quartz marble, and powder coating.

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

Note: The particle size can be produced according to the customer's special requirements.

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

Third Party Test Report

Production Process

Fused Silica 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 it a very useful and versatile material for refractory applications, such as aluminum launders or other highly cyclical applications.

At Lianyungang Chemsize International Trading Co., Ltd., we strictly choose high purity silica sand (SiO2 > 99%) from local Donghai/Xinyi as our raw material. The silica sand is melted at high temperatures (2000-2300 ºC) to form an amorphous silicon dioxide glassy ingot, which is then cooled. We further process the products into fused silica lump, sand, and powder according to our customers' requirements.

Detailed Photos

Product Name: Ultra-Fine Fused Silica Powder

Keywords: Fine Silica Powder, Silica Grains, Silica Flour, Quartz Powder, Quartz Sand, Amorphous Silica, Silicon Oxide, Refractory Powder, Silica Sand, Fused Quartz Powder, Fused Quartz Sand, Silica Cullet, Fused Silica Lumps, Quarzglas Powder, Castable Refractory, Silica Motar, Investment Casting Powder, Silica Grit, High-Quality Silica Powder, Ultra-Fine Quartz Powder, Premium Silica Grains, Refined Silica Flour, Top Grade Silica Sand, Superior Fused Quartz, Impurity-Free Silica Powder, Pure Quartz Powder, Fine-Grained Silica Sand, Smooth Silica Powder, Enhanced Fused Quartz, Ultra-Fine Silica Grains, Superior Silica Flour, Premium Quartz Sand, Refined Silica Cullet, Fine Fused Silica Lumps, Top Quality Quarzglas, Specialty Castable Refractory, High-Density Silica Motar, Fine Investment Casting Powder, Extra-Fine Silica Grit

Description: Our Ultra-Fine Fused Silica Powder is a top-quality product that offers enhanced clarity for high clear pictures. It is perfect for various applications, including refractory, investment casting, and specialty castable refractory. With its ultra-fine grains and superior purity, this premium silica powder is the ideal choice for demanding projects.

Packaging & Shipping

Product Name: Ultra-Fine Fused Silica Powder

Keywords: Fine Silica Powder, Silica Grains, Silica Flour, Quartz Powder, Quartz Sand, Amorphous Silica, Silicon Oxide, Refractory Powder, Silica Sand, Fused Quartz Powder, Fused Quartz Sand, Silica Cullet, Fused Silica Lumps, Quarzglas Powder, Castable Refractory, Silica Motar, Investment Casting Powder, Silica Grit, High-Quality Silica Powder, Ultra-Fine Quartz Powder, Premium Silica Grains, Refined Silica Flour, Top Grade Silica Sand, Superior Fused Quartz, Impurity-Free Silica Powder, Pure Quartz Powder, Fine-Grained Silica Sand, Smooth Silica Powder, Enhanced Fused Quartz, Ultra-Fine Silica Grains, Superior Silica Flour, Premium Quartz Sand, Refined Silica Cullet, Fine Fused Silica Lumps, Top Quality Quarzglas, Specialty Castable Refractory, High-Density Silica Motar, Fine Investment Casting Powder, Extra-Fine Silica Grit

Package and Delivery: Fused Silica Plastic Woven Bag of 25kg Net each, Then on Pallet

Lianyungang Chemsize International Trading Co., Ltd. presents Ultra-Fine Fused Silica Powder. Our high-quality product includes fine silica powder, silica grains, quartz powder, and more. Perfect for refractory applications, investment casting, and specialty refractory needs. Experience the superior quality of our fused silica lumps and quartz sand. Get impurity-free, pure quartz powder for your projects. Choose Chemsize for top-grade silica products.

Fused Silica Making Process

Fused Silica Making Process

Fused Silica is made of high purity crystal silica from China Donghai-Xinyi by electrically fusing (fusing temperature 1800-2000ºC) to amorphous Silicon dioxide. It is then specially engineered into lumps, cullet, ingots, sand, grain, granular, and powder flour form. These forms are designed for making PV fused silica crucible, thermal ceramic, refractory, EMC investment casting ceramic shell, and more.

Fused Silica Sand Appearance and Specifications:

• It is forbidden to contain any unfused parts.


• It is forbidden to have foreign material, such as string, plastic line, carbon or wooden material, metal, or other outside contaminants.


• All color dots are forbidden except conditional black dots.


• Black spot diameter larger than 2mm is not acceptable.


• Total black dots quantity should be less than 10 when opening the big bag, equal to or less than 10 dots per square meter.

FAQ:

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

A: Yes, we'd like to send samples free of charge by ***/FEDEX/DHL. Mixed samples are acceptable.

Q2. What about the lead time?

A: It is 3-5 days for sending samples. It is usually within 15 days to deliver orders for quantities within 100mt.

Q3. Do you have any MOQ limit for fused silica sand order?

A: No. But the less the average cost higher.

Q4. How do you ship the goods and how long does it take to arrive?

A: We usually ship by DHL, UPS, FedEx, or ***. It usually takes 3-5 working days to arrive. It depends on the distance by sea, which can take 7-40 days.

Q5. How to process an order for fused silica powder products?

A:

1. Let us know your requirements or application.


2. We quote according to your requirements or our suggestions.


3. Customer confirms the samples and pays a deposit for a formal order.


4. We arrange the production.

Q6. Is it OK to print my logo on packages?

A: Yes. Please inform us formally before our production and confirm the design based on our sample.

Q7: How to deal with the faulty?

A: Firstly, our products are produced in a strict quality control system, and the defective rate will be less than 0.2%. Secondly, if it happens, we shall arrange to send new products to you and pay for all your losses.

Any questions, kindly contact us please!

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