Items | Unit | Index | Typical | ||
Chemical Composition | Al2O3 | % | 99.00min | 99.5 | |
SiO2 | % | 0.20max | 0.08 | ||
Fe2O3 | % | 0.10max | 0.05 | ||
Na2O | % | 0.40max | 0.27 | ||
Refractoriness | ℃ | 1850min | |||
Bulk density | g/cm3 | 3.50min | |||
Mohs hardness | --- | 9.00min | |||
Principal crystalline phase | --- | α-Al2O3 | |||
Crystal size: | μm | 600-1400 | |||
True density | 3.90min | ||||
Knoop hardness | Kg/ mm2 | ||||
Refractory Grade | Grain | mm | 0-50,0-1, 1-3, 3-5,5-8 | ||
Mesh | -8+16,-16+30,-30+60,-60+90 | ||||
Fines | mesh | -100,-200, -325 | |||
Abrasive&Blasting Grade | FEPA | F12-F220 | |||
Polishing&Grinding Grade | FEPA | F240-F1200 |
Products/Spec | Al2O3 | SiO2 | Fe2O3 | Na2O |
WFA Low Soda Grains and fines | >99.2 | <0.2 | <0.1 | <0.2 |
WFA 98 Grains and fines | >98 | <0.2 | <0.2 | <0.5 |
WFA98% Demagnetized Fines -200,-325 and -500Mesh | >98 | <0.3 | <0.5 | <0.8 |
Items | Size | Chemical Composition (%) | |
Fe2O3 (min) | Na2O (max) | ||
WA & WA-P | F4~F80 P12~P80 | 99.10 | 0.35 |
F90~F150 P100~P150 | 98.10 | 0.4 | |
F180~F220 P180~P220 | 98.60 | 0.50 | |
F230~F800 P240~P800 | 98.30 | 0.60 | |
F1000~F1200 P1000~P1200 | 98.10 | 0.7 | |
P1500~P2500 | 97.50 | 0.90 | |
WA-B | F4~F80 | 99.00 | 0.50 |
F90~F150 | 99.00 | 0.60 | |
F180~F220 | 98.50 | 0.60 |