Ceramic Abrasive GrainSG
Description:
SGH and TSGH are trademarks of our Ceramic Abrasive Grain which is produced by Alumina Sol-Gel Process. They shows very high alumina content, extremely high tenacity and of uniform quality. The most common applications are for Bonded Abrasives or Coated Abrasive.
SGH is an aluminium oxide ceramic abrasive grain obtained by Sol-Gel process. Its well controlled submicron crystal structure gives it high abrasive power and excellent cutting quality.
TSGH is a high purity aluminum oxide Ceramic Abrasive Grain obtained by Sol-Gel process with complex polycrystalline microstructure composed of unique submicron crystalline of alpha alumina , magnesium alumina spinel and stabilized zirconia. TSGH has high abrasive power and excellent cutting quality.
BSGH is high purity aluminum oxide Ceramic Abrasive Grain obtained by Sol-Gel process with complex polycrystalline microstructure composed of alpha alumina, magnesium alumina spinel and a rare earth hexagonal aluminate. BSGH has high abrasive power and excellent cutting quality.
Chemical & Physical Properties:
| Property | SGH | TSGH | BSGH | ||
|---|---|---|---|---|---|
|
Chemical Composition (wt. %) |
Al2O3 | 99.82 | 96.25 | 94.86 | |
| SiO2 | 0.10 | 0.05 | 0.03 | ||
| Fe2O3 | 0.02 | 0.02 | 0.02 | ||
| Na2O | 0.02 | 0.02 | 0.02 | ||
| MgO | - | 1.24 | 1.36 | ||
| ZrO2 | - | 2.50 | - | ||
| La2O | - | - | 2.93 | ||
| Y2O3 | - | - | 1.42 | ||
|
Physical Property |
True Density (g/㎤) | 3.98 | 3.98 | 3.90 | |
| Specific Gravity (g/㎤) | 3.94 | 3.96 | 3.92 | ||
| Hardness (㎬) | 20.5 | 21.2 | 18.3 | ||
| Toughness (%) | FEPA P | 56.2 | 61.2 | 64.2 | |
| FEPA F | 59.7 | 67.5 | 68.6 | ||
Bulk Density (g/㎤):
| Grit | SGH | Grit | TSGH | Grit | BSGH (P Grade) |
Grit | BSGH (F Grade) |
||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Spec | Typical | Spec | Typical | Spec | Typical | Spec | Typical | ||||
| p24 | 1.90-1.70 | 1.77 | F16 | 1.95-1.75 | 1.85 | P24 | 1.95-1.75 | 1.78 | F16 | 1.95-1.75 | 1.85 |
| P30 | 1.90-1.70 | 1.75 | F20 | 1.95-1.75 | 1.86 | P30 | 1.95-1.75 | 1.80 | F20 | 1.95-1.75 | 1.84 |
| P36 | 1.90-1.70 | 1.76 | F24 | 1.95-1.75 | 1.82 | P36 | 1.95-1.75 | 1.78 | F24 | 1.95-1.75 | 1.83 |
| P40 | 1.80-1.60 | 1.73 | F30 | 1.95-1.75 | 1.80 | P40 | 1.95-1.75 | 1.76 | F30 | 1.95-1.75 | 1.82 |
| P50 | 1.80-1.60 | 1.72 | F36 | 1.95-1.75 | 1.80 | P50 | 1.95-1.75 | 1.74 | F36 | 1.95-1.75 | 1.80 |
| P60 | 1.80-1.60 | 1.72 | F46 | 1.85-1.65 | 1.81 | P60 | 1.85-1.65 | 1.72 | F46 | 1.85-1.65 | 1.77 |
| P80 | 1.75-1.55 | 1.66 | F60 | 1.85-1.65 | 1.78 | P80 | 1.85-1.65 | 1.72 | F60 | 1.85-1.65 | 1.75 |
| P100 | 1.75-1.55 | 1.62 | F80 | 1.85-1.65 | 1.72 | P100 | 1.85-1.65 | 1.70 | F80 | 1.85-1.65 | 1.72 |
| P120 | 1.70-1.50 | 1.57 | F100 | 1.80-1.60 | 1.67 | P120 | 1.80-1.60 | 1.66 | F100 | 1.80-1.60 | 1.68 |
| P150 | 1.70-1.50 | 1.54 | F120 | 1.80-1.60 | 1.67 | P150 | 1.80-1.60 | 1.64 | F120 | 1.80-1.60 | 1.65 |
| P180 | 1.70-1.50 | 1.52 | F150 | 1.75-1.55 | 1.61 | P180 | 1.75-1.55 | 1.62 | F150 | 1.75-1.55 | 1.62 |
| P220 | 1.64-1.45 | 1.51 | F180 | 1.75-1.55 | 1.59 | P220 | 1.75-1.55 | 1.58 | F180 | 1.75-1.55 | 1.60 |
| - | - | - | F220 | 1.70-1.55 | 1.57 | - | - | - | F220 | 1.70-1.55 | 11.58 |
Microstructure:
