High Quality Refractory Grade Black Corundum Grains Abrasive for Blasting

• Customization: Available
• Al2O3: 85%
• Ti2o: 2
• Model NO.: Black fused alumina-031
• Fe2o3: 6
• Sio2: 6
• Melting Point: 2050 Degree Celsius
• Maximum Operation Temperature: 1850 Degree Celsius
• Bulk Density: 1.65t/M3
• Linear Expansivity: 7-9
• Color: Black
• Packing: Ton/Bag or 25kg/Bag as Customers′s Request
• Natural Abrasive Type: Natural Corundum
• Artificial Abrasive Type: Corundum Abrasives
• Application: Metal Parts
• Function: Surface Deburring
• Source: Artificial Abrasives
• Particle Size: Abrasive
• Hardness: Conventional Abrasive
• Transport Package: According to Customer′s Request
• Specification: According to customer′s request
• Trademark: GYFT
• Origin: China
• HS Code: 2818109000
• Production Capacity: 3600tons

Product Description

Product Description

Black Fused Alumina Chemcal Analysis

Black aluminum oxide fused corundum is also known as low aluminum corundum. It is also a new type product of polishing material, and it is

a dark gray crystal body made α-Al2O3 and ferropicotite as main ore in the electric arc furnace by smelting the bauxite. It has characteristics of

moderate hardness, high toughness, high temperature resistance, and stable thermal stability. It is mainly suitable for free grinding, such as

coarse grinding before electroplating products, mainly for polishing and sandblasting of stainless steel, fabricated metal products.

 

Product Parameters

 

Chemical Composition (% by weight)

Grade	Chemical Composition
	Al2O3	SiO2	Fe2O3	TiO2
I	85	11	5.0	1.5-3.5
II	75-81	9-12	4-6	2-3
III	65	10	7.0	1.5-3.0
Grit	F 8 10 12 16 24 36 46 60 80 100 120 150 180 220 325 MESH		Fine powder:  400 600 800 1000 1500 2000 MESH etc.

Black Fused Alumina physical properties

Hardness (Mohs)    ≥ 9.0

Melting point (°C)  2050

The maximum temperature (°C)    1850

True Density (g/cm3)    ≥ 3. 50

Linear expansion coefficient (0-1600 °C)     7-9

High content industry calcined black fused alumina Application

Application

 

 

Application

For abrasives, grinding of electronics, metallurgical additive.

For special ceramics, foam ceramics

For auto parts, war industry and aviation, steelmaking

For abrasive and cutting tools and Cutting disks made of SiC

For grinding, honing, water-jet cutting and sandblasting.

For lapping and polishing ,metallurgical additive and refractory material.

Packaging & Shipping

Company Profile

Gongyi Fengtai 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.

FAQ

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 is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
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