High Purity White Corundum for Industrial Grinding and Coating Tasks
Applications of White Rigid Jade Sand (White Fused Alumina)
Grinding & Finishing
High-purity White Corundum provides excellent grinding performance for glass, jade, ceramics, and precision components. It is also suitable for processing hard materials such as brown and black corundum, silicon carbide, iron sand, and copper ore.
Abrasive Tool Manufacturing
Widely used in resin-bonded and coated abrasives, White Corundum is ideal for producing grinding wheels, sandpaper, sanding belts, abrasive cloth, and related tools with stable quality and high efficiency.
Sandblasting & Surface Treatment
An effective abrasive for sandblasting stainless steel, iron, and copper parts, offering efficient rust removal, surface cleaning, and improved coating adhesion. It is also used for plastic, glass, and denim sandblasting.
Industrial Applications
White Corundum is applied in high-performance abrasive flooring and water jet cutting, enabling durable surfaces and precise cutting of steel and pipes.
Type Properties | Lower sodium I | Middle sodium II | |||||||
Fraction(mesh) | Fine(mesh) | Fraction(mesh) | Fine(mesh) | ||||||
Guarantee Value | Typical value | Guarantee Value | Typical value | Guarantee Value | Typical value | Guarantee Value | Typical value | ||
Chemical Composition (%) | α-Al2O3 | ≥99 | 99.3 | ≥98.5 | 99.23 | ≥99 | 99.14 | ≥98.5 | 98.75 |
SiO2 | ≤0.2 | 0.15 | ≤0.3 | 0.22 | ≤0.4 | 0.12 | ≤0.4 | 0.19 | |
Fe2O3 | ≤0.2 | 0.04 | ≤0.25 | 0.04 | ≤0.2 | 0.01 | ≤0.25 | 0.05 | |
Na2O | ≤0.15 | 0.12 | ≤0.25 | 0.18 | ≤0.4 | 0.35 | ≤0.5 | 0.23 | |
Principal crystalline phase | α-Al2O3 | ||||||||
Crystal system | Hexzagon | ||||||||
Colour | white | ||||||||
True density (g/cm3) | ≥3.95 | ||||||||
Packing density (g/cm3) | 1.75-1.95 | ||||||||
Mohs hardness | 9 | ||||||||
Linear expansion (1/°C) | 8.3×10-4 | ||||||||
Size(mm) | 8-5 5-3 3-1 1-0 | ||||||||
Fine(mesh) | -80,-120,-240,-320 | ||||||||
Micropowder(um) | 3-5 5-10 | ||||||||
Test standard | GB/T3044-89 | ||||||||
Packing | 25kg/bag 1000kg/big bag | ||||||||
Usage | Refractories | ||||||||