Brown Corundum Abrasive Powder / Brown Fused Alumina/ Aluminum Oxide Powder

Product Description

Product Description

 

Brown Fused Alumina

Brown fused alumina is also called brown corundum, is formed by melting and crystallization of high-quality raw materials such as bauxite and anthracite-based coke at high temperature. The main mineral components of brown corundum are physical corundum, trigonal crystal system, and mineral impurities are: calcium silicate, anorthite, mullite (also known as mullite), titanium compounds, glass body and iron alloys.

Brown fused alumina has the characteristics of high purity, good crystallization, strong fluidity, low coefficient of linear expansion and corrosion resistance. Abrasives made of it are suitable for grinding metals with high tensile strength, such as carbon steel, general alloy steel, annealed malleable cast iron and hard bronze, etc., and can also be used as refractory materials.

 

Product Parameters

Subject	Indicator value
Name	Brown fused alumina
color	Brown
melting point	2250ºC
Bulk density	3.85 g/cm3
Moh's hardness	9.0
Knoop hardness	1800-2200 kg/mm2
Maximum use temperature	1850ºC
Size	16#, 24#, 30#, 36#, 46#, 60#, 80#, 100#, 120#, 150#, 180#, 200#, 325#

Notice: The specifications in the above table can also be customized according to customer needs.

 

Purpose	Specification		Chemical composition(%)				Magnetic material ≤
			Al2O3(≥)	Fe2O3(≤)	SiO2≤	TiO2≤
For abrasive	F grit	4#-80#	95.0	0.3	1.5	3.0	0.05
		90#-150#	94.0				0.03
		180#-240#	93.0			3.5	0.02
	P grit	8#-80#	95.0	0.2	1.2	3.0	0.05
		100#-150#	94.0				0.03
		180#-220#	93.0	0.3	1.5	3.5	0.02
	Micro Powder	W0.5-W63 F320-F1500	92.5	0.5	1.8	4.0

 

For refractory	Size for Sand	0-1mm 1-3mm 3-5mm 5-8mm 8-12mm	95.5	0.3	1.5 (1.0 from Tilting Furnace)	3.0
		0-3mm 0-5mm 0-10mm  0-25mm	95.0	0.3	1.5	3.0
	Fine powder	140F 200F 325F	94.5	0.5	1.5	3.5

 

Typical Application

 

Sandblasting

Brown fused alumina has moderate hardness, high bulk density, no free silica, large specific gravity and good toughness. It is an ideal "environment-friendly" sandblasting material, which is widely used in aluminum profile, copper profile glass, precision molds for washed jeans and other fields.

 

Making Abrasive

Brown fused alumina is used to make resin abrades or coated abrades. Abrasives have appropriate color, good hardness, toughness, appropriate particle cross-section type and cutting edge retention, which are applied to resin abrasives with ideal effect, and also widely used in sand paper, emery cloth factory.

 

As Functional Filler

Brown fused alumina is mainly used for automobile brake parts, special tires, special construction products, etc. It can be used as wear-resistant materials for highway pavement, runway, dock, parking lot, industrial floor, stadium and so on.

 

As Filter Media

Brown fused alumina is a new application field of abrasive. Granular abrasive is used as the bottom media of filter bed to purify drinking water or wastewater. It is a new type of water filter material at home and abroad, especially suitable for nonferrous metal beneficiation, oil drilling mud weighting agent

 

Free Grinding

Brown fused alumina as grinding grade abrasive, which is used for free grinding in the fields of kinescope, optical glass, monocrystalline silicon, lenses, watch glass, crystal glass, jade articles, etc., and is a widely used advanced grinding material.

 

Hydraulic Cutting

Brown fused alumina is a new, environmentally friendly and safe cutting method, which uses abrasive as cutting medium and relies on high-pressure hydraulic jet for basic cutting, and is applied to the cutting of oil (natural gas) pipelines, steel.

 

Packaging & Shipping

 

The commonly used packaging forms are as follows:

25kg/bag, 25Kg/drum, 500kg/Jumbo, lined PE water-proof and outer metal or carbon drum, 

the weight and measurement clearly marked on package.

Besides, we can customize packaging according to customer needs.

 

The transportation methods we choose are mainly:

1. Sea transportation 
2. Air transportation 
3. Land transportation 
4. Train transportation

 

About Us

 

Ningxia Yongruida Carbon Co., Ltd.  is a manufacturer integrating production and sales. We have abundant strength and enthusiastic service attitude. We have exported to many countries, such as Europe, Asia, Africa, Australia, South America and so on, and have been well received by customers.

In addition, we have professional R&D and sales teams, and own factories and laboratories. Each batch of our product samples will be inspected by our quality inspector. After a series of tests, our products will be delivered to customers to provide them with quality assurance.

Above are the certificates related to our products. We have relevant approval certificates for product export, as well as declarations of conformity to standards.

Our products have quality inspection certificates that meet the standards, and the quality inspection certificates are certified by the China Quality Certification Center.

FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.So you do not have to worry about quality and price, we can guarantee the best quality and the most reasonable price.

Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What's your MOQ?
A: Normally, 1000kg. But any trial order, which quantity is less than MOQ, is also warmly welcomed.

Q: What are your advantages?
A: First, high quality and best ex-factory price.
Second, strict management and quality control system.  
Third, high-quality service team, providing timely service.