Black Corundum / Black Fused Alumina for Polishing

• Customization: Available
• Natural Abrasive Type: Natural Corundum
• Artificial Abrasive Type: Corundum Abrasives
• Model NO.: BA-01
• Application: Auto Parts
• Function: Surface Deburring
• Source: Natural Abrasives
• Particle Size: Abrasive
• Hardness: Superabrasive
• Color: Black
• Na2o: 0.3%
• Al2O3: 99.55%
• Fe2o3: 0.04%
• Synonym: Black Corundum / Black Fused Alumina for Polishing
• Shape: Grits/Grains
• Sio2: 5-8%
• TiO2: 2-4%
• Usage: Blasting
• Grade: Top Grade
• Sample: Free
• Packing: 25kg/Bag
• MSDS: Yes
• Supply: Factory Supply
• Origion: China
• Transport Package: 25kg a Bag
• Specification: 0-8mm 16-220mm 325-1000mm
• Trademark: HH
• Origin: Ningxia, China (Mainland)
• HS Code: 2818109000
• Production Capacity: 3000-4000tons/Month

Product Description

Black Corundum / Black Fused Alumina For Polishing

I. Introduction:

Black Fused Alumina is a new type abrasives material which features lower Al2O3 and certain grade of Fe2O3.And it has characteristics of moderate hardness,high toughness,high temperature resistance,and stable thermal stability.
 

Suitable for polishing metals, sandblasting and making abrasives tools. 
It's also the right material for making abrasive tools: Fiber-reinforced cutting wheels, grinding wheels, sand cloth, paper and paste and so on.

 

Name	Black corundum
Commonly used specification	Period of sand: 0-1, 1-3, 3-5, 5-8 (mm) powder W no. : 325 400 600 800 1000...(mesh) Particle size of sand: F: 16,20,24,30,36,46,60,80,100,120,150,180,200,320. (mesh)
proportion of appearance	3.5g/cm3 Black granular.
raw materials	The bauxite in electric arc furnace smelting and become a kind of is given priority to with alpha AL2O3 and spinel mineral phase - colored crystals.
production process	Raw material sorting-electrolytic refining - crushing - in addition to the iron magnetic separation-screening-physical and chemical inspection-finished product packaging-warehousing
performance feature	Basic particle concentration, low linear expansion coefficient, good toughness, high grinding ratio.
Use	Stainless steel, metal, glass, wood products sand blasting, polishing, grinding wheel, cutting slices, sandpaper.
indicators	AL2O3 content is 85%, SiO2 content 5-8%, Fe2O3 content of 6-9%, content of TiO2 2-4%, true density of 3.5 g/cm after, the highest melting point temperature 1850 , 2050  1600  when the linear expansion coefficient of 7-9.

Specifications:
 

Item	Al2O3	Fe2O3	SiO2
Grade A	85 %	9 %	≤ 6 %
Grade B	80 %	10 %	≤ 10 %
Hardness (mohs )	≥ 90	Melting point	2050
True density (g/cm3)	≥ 3.50	Linear expansion coefficient	7-9

 

Applications:

1, freedom, grinding, such as floor polishing before plating metal parts, aluminum products.
2, bicycle, motorcycle, sewing machines, watches and clocks, parts and components.
3, lamp decoration, plastic and hardware tools, such as polishing, is also suitable for sandblasting (spray cleaning, glass flower).
4, processing and manufacturing resin cutting disc, Angle grinding, and coated abrasive such as attached.
5, black corundum sand granularity and micro powder is especially suitable for grinding and polishing stainless steel workpieces and sharpening stone, grinding paste manufacturing.
6, black corundum sand is the antiskid pavement and coal mine under the storage and the material of choice.

Packaging & Shipping

Package:25kg/50kg a bag ,or according your requirement.

Delivery:5-7days after place order.




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