| Designation | US Sieve | Nominal Diameter | Lowest roundness% | |
| Max(um) | Min(um) | |||
| 3 | 20-30 | 850 | 600 | 65 |
| 4 | 30-40 | 600 | 425 | 70 |
| 5 | 40-50 | 425 | 300 | 70 |
| 6 | 50-70 | 300 | 212 | 80 |
| 7 | 60-80 | 250 | 180 | 80 |
| 8 | 70-100 | 212 | 150 | 80 |
| 9 | 80-120 | 180 | 125 | 80 |
| 10 | 100-170 | 150 | 90 | 90 |
| 11 | 120-200 | 125 | 75 | 90 |
| 12 | 140-230 | 106 | 62 | 90 |
| 13 | 170-325 | 90 | 45 | 95 |
| Specifications | ||
| Chemical composition% | SiO2 | >72% |
| CaO | >8% | |
| Na2O | <14% | |
| MgO | >2.5% | |
| Al2O3 | 0.5-2.0% | |
| Fe2O3 | 0.15% | |
| Others | 2.0% | |
| Refractive Index | Nd≥1.5% | |
| Density | 2.4-2.6g/cm3 | |
| Size distribution | Oversize ≤5% under size ≤10% | |
| Wire diameter | 0.03-0.4mm | |
| Durability | 3-5 % | |
| Hardness | 6-7 MOHS ;46HRC | |
| Microhardness | ≥650kg/cm3 | |
| Circularity | Round rate of ≥95% | |
Glass beads application：
1. Glass Beads for Surface treatment of stainless steel products
2. Glass Beads for Cleaning all kinds of molds
3. Glass Beads for Remove various types of mechanical tensile stress, increase fatigue life
4. Glass Beads For Semiconductor devices, plastic seals on the tube before the tin cleaning to remove the edge thorn
5. Glass Beads For Shot peening of medical equipment, textile machinery, and various hardware products finishing processing
6.Glass Beads For Cleaning and removing burr residue of various metal tubes and non-ferrous metal precision castings
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