High Quality White Aluminum Oxide Fused Alumina (WA/WA-B/WA-P/WA-R)

• Natural Abrasive Type: Natural Corundum
• Artificial Abrasive Type: Corundum Abrasives
• Application: Machinery
• Function: Surface Finish
• Source: Artificial Abrasives
• Particle Size: Mill
• Model NO.: WA / WA-B / WA-P / WA-R
• Hardness: Conventional Abrasive
• Crystal Color: White
• Basic Mineral: Alpha- Al2O3
• Crystal System: Hexagonal
• Mohs Hardness: 9
• Density: More Than 3.90g/cm3.
• Micro Hardness: Hv2200-2300
• Usage: Polishing, Grind, Sand Blasting, Refractory.
• Transport Package: 25kg P. P Bag+1mt Jumbo Bag, 25kg Paper Bag+Pallet
• Specification: F8-F1200, P12-P2500, 0-1mm, 1-3mm,3-5mm,5-8mm, etc
• Trademark: kumthai
• Origin: Zhengzhou, China
• HS Code: 2818109000
• Production Capacity: 10000tons / Month

Product Description

High Quality White Aluminum Oxide Fused Alumina(WA/WA-B/WA-P/WA-R) Corundum Abrasives, Special Specifications Customizable!


White Fused Alumina (WA) is produced by bayer alumina in an electric arc furnace at high temperatures. The product shows higher hardness, higher bulk density and good cleanliness. The materials can be used to grind high carbon steel, high speed steel, chilled steel and so on. It can also be used as polishing materials and precision founding sand, spraying and coating materials, catalyst carrier, special ceramics and super refractory materials.

White Corundum/White Aluminum Oxide/White Fused Alumina are applied into many industrial fields due to its stable and great physical and chemical properties. It can be used for making bonded/coated abrasive tools, for grinding, polishing, lapping, blasting, precision casting, and refractory industry, aerospace industry, mobile phone and electronic industry, jewelry industry, hardware industry, ceramics, automobile parts, bearing, powder metallurgy and so on.
 

Grain Usages and Types
Usage	For vitrified wheels	For organic wheels	For coated abrasives	For refractory materials
Type	WA	WA-B	WA-P	WA-R

 

Physical Characteristics
Item	Basic mineral	Crystal system	Crystal color	Mohs  hardness	Density
White aluminum oxide	α- Al2O3	Hexagonal	White	9	≥3.90g/cm^3
Item	Micro hardness	Electrical  resistivity	Grinding ability(compared with  diamond as one)		Linear expansion  coefficient(when 900ºC α•10^-6k^-1)
White aluminium oxide	HV2200-2300	10^14-10^16Ω•cm	0.12		8.3

 

Chemical Composition
GB/T 2479-2008
Type	Grit	Chemical composition (%, by weight)
		Al2O3	Na2O
WA	F4-F80	≥99.10	≤0.35
	F90-F150	≥99.10	≤0.40
	F180-F220	≥98.60	≤0.50
	F230-F800	≥98.30	≤0.60
	F1000-F1200	≥98.10	≤0.70
WA-B	F4-F80	≥99.00	≤0.50
	F90-F150	≥99.00	≤0.60
	F180-F220	≥98.50	≤0.60
WA-P	P12-P80	≥99.10	≤0.35 ≤0.40
	P100-P150	≥99.10
	P180-P220	≥98.60	≤0.50
	P240-P800	≥98.30	≤0.60
	P1000-P1200	≥98.10	≤0.70
	P1500-P2500	≥97.50	≤0.90
WA-R	0-1mm	≥99.00	≤0.50
	1-3mm	≥99.00	≤0.50
	3-5mm	≥99.00	≤0.50
	5-8mm	≥99.00	≤0.50

Note: Special requirements on chemical composition and other terms can be satisfied through discussion.

The grit sizes of White Corundum/White Aluminum Oxide/White Fused Alumina WA WFA are produced according to national standard and international standard, and can be also produced according to customers' requirements.
 

Chemical Composition
GB/T 2479v-2008
Type	Grit Size	Bulk Density	Whiteness	Chemical composition (%, by weight)
				Al2O3	Na2O
WA	F120-F220	≥1.80g/cm3	≥80%	≥99.10	≤0.40

 Note: Special requirements on chemical composition and other terms can be satisfied through discussion.

Product package: 25kg P. P Bag+1MT Jumbo Bag, 25kg Paper Bag+1 MT Pallet, or according to customers' requirements.