Brand Name: HAIXU ABRASIVES
Model Number: F8-F220
Place of Origin: China
Production description
Grey fused alumina zirconia abrasive grain/AZ25 AZ40 gray fused alumina
High toughness Zirconia emery 25% ZrO2 grain is produced by putting rich aluminum, zirconium materials and additives in electric furnaces, smelting with high temperature above 2000°C,cooling down with special technology, and compacting with Barmac plastic, which has the characteristics of excellent self-sharpening ability,tenacious texture, dense structure and high strength.
Why Adopting Zirconia grain for abrasive tools instead of Aluminum oxide?
The significant characteristics of Zirconia grain are as below:
1.High toughness can increase the lifetime of abrasive cutting disc & grinding disc.
2.High self-sharpening ability can make cutting disc& grinding disc sharper.
Technical Data Sheet
Chemical composition | ||
Item | ZA25 | ZA40 |
AL2O3 | 68-72% | 55-57% |
ZrO2 | 24-30% | 35-44% |
TiO2 | Max 1.5% | Max 1.5% |
Fe2O3 | Max 0.5% | Max 0.5% |
SiO2 | Max 1.0% | Max 1.0% |
Typical physical properties | ||
Particle shape | monoclinical tetragonal | |
Chemical property | Amphoteric | |
Reaction with acid and alkali | No | |
Reaction with carbon | Forming carbide since 1650 ℃ | |
Crystal Size | ≤30 μm | |
Hardness | Mohs:9.0 | |
Knoop hardness | 1450-2000 kg/cm3 | |
Melting Point | 1850 ℃ | |
Maximum service temperature | 1600 ℃ | |
Specific Gravity | 4.20g/cm3 | |
Bulk density(LPD) | 2.18 g/cm3 | |
Color | Gray | |
Specific heat capacity(cal/g.C) | 0.2205(50-500℃) | |
Heat conductivity | 0.2718 cal/cm2.sec.℃ | |
Linear expansivity(X10-6) | 6.82(100-700℃) | |
Grain grit | 4# 5# 6# 8# 10# 12# 14# 16# 20# 22# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220# |
AZ25 F-Grit Size | Bulk density (g/cm3) |
F8 | 2.10-2.28 |
F10 | 2.20-2.38 |
F12 | 2.16-2.34 |
F14 | 2.10-2.28 |
F16 | 2.05-2.26 |
F20 | 2.00-2.24 |
F22 | 1.97-2.25 |
F24 | 1.99-2.22 |
F30 | 1.98-2.21 |
F36 | 1.93-2.11 |
F46 | 1.92-2.10 |
F54 | 1.90-2.08 |
F60 | 1.87-2.05 |
F70 | 1.86-2.04 |
F80 | 1.85-2.04 |
F90 | 1.85-2.03 |
F100 | 1.85-2.03 |
F120 | 1.88-2.02 |
F150 | 1.88-2.01 |
F180 | 1.88-2.00 |
F220 | 1.88-2.00 |
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