99% Al2O3 White Corundum Powder Wa Wfa Fused Alumina Aluminum Oxide

Min.Order: 1

Product origin: Zhengzhou, Henan, China

Infringement complaint:

Complaint

US$ 700 ~ 1100

Description

High Quality WA WFA White Fused Alumina Aluminium Oxide Corundum for Sandblasting Refractory Materials Bonded/Coated Abrasives

White fused alumina is produced by bayer alumina in an electric arc furnace at high temperatures. The product shows higher hardness and lower toughness than that of brown aluminium oxide. The materials are used to grind high carbon steel, high speed steel and chilled steel. It can also be used as polishing materials and precision founding sand, spraying and coating materials, catalyst carrier, special ceramics and super refractory materials.

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/cm³
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	10¹⁴-10¹⁶Ω•cm	0.12		8.3

Chemical Composition
GB/T 2479-2008
Type	Grit	Chemical composition (%, by weight)
Type	Grit	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	≤0.35 ≤0.40
	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