China Road Marking Glass Beads with ISO9001 JIS R3301 Safety Microsphere Paint Blasting Abrasive Sand, Find details about China Abrasive, Glass Bead from Road Marking Glass Beads with ISO9001 JIS R3301 Safety Microsphere Paint Blasting Abrasive Sand
Project | Quality | |
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% |