Zirconia Fused Alumina Abrasive Sand for Monument Engraving in USD and Canada Market
Zirconia Fused Alumina (ZA) abrasive sand, especially the 25% zirconia content grade, is a high-performance electro-fused abrasive professionally developed for precision monument engraving and stone surface finishing. Manufactured through high-temperature electric melting and strict particle grading processes, this zirconia fused alumina features a compact crystalline structure, excellent toughness, superior hardness, and outstanding self-sharpening performance. Compared with traditional brown fused alumina and common abrasives, ZA abrasive has stronger impact resistance and lower breakage rate during high-pressure blasting, making it the ideal abrasive material for high-standard tombstone and monument processing.
Primarily applied for monument and granite engraving, this abrasive is widely used for deep pattern carving, letter engraving, surface matting, rust removal, and uniform texture finishing on granite, marble, and other natural stone materials. Its uniform particle size distribution ensures clear engraving lines, delicate surface texture, and no edge chipping or surface scratches on stone products. It effectively solves the common problems of uneven blasting, easy particle breakage, and rough stone surface caused by ordinary abrasives, greatly improving the finished quality of high-end memorial tombstones.
Tailored for the USA and Canada stone processing market, our Zirconia Fused Alumina fully complies with local industrial safety and environmental protection standards. It contains no free silica, produces less dust during operation, and supports long-term continuous blasting work for large stone factories and engraving studios. In the North American monument industry, where high precision and stable finishing effects are strictly required, ZA abrasive has gradually become the mainstream alternative to traditional abrasives due to its durable service life and consistent processing performance.
We provide stable standardized particle sizes and customizable specifications to meet diverse engraving and surface treatment demands in the US and Canadian markets. With reliable quality, cost-effective pricing, and mature export supply capacity, our zirconia fused alumina abrasive has become a trusted high-end abrasive choice for local monument manufacturers and stone processing enterprises.
TYPICAL CHEMICAL ANALISIS [%]
| Items | Al2O3 | ZrO2 | TiO2 | Fe2O3 | SiO2 |
| ZA25 | 68-72 | 24-30 | ≤1.5 | ≤0.5 | ≤1.0 |
| ZA40 | 55-57 | 35-44 | ≤1.5 | ≤0.5 | ≤1.0 |
PHYSICAL PROPERTIES
| Crystal Form | Monoclinic,tetragonal system |
| Reaction with acid and alkali | no |
| Reaction with carbon | Forming carbide since 1650C |
| Color | Grey |
| True Density | 4.20g/cm3 |
| Bulk Density | 2.18g/cm3 |
| Moh’s hardness | 9.0 |
| Knoop hardness | 1450-2000kg/cm2 |
| Melting point | 1900C |
| Maximum service temperature | 1700C |
| Specific heat capacity(cal/g.C) | 0.2205(50-500C) |
| Heat conductivity | 0.2718 cal/cm2.sec.C |
| Linear expansivity(X10-6) | 6.82(100-700C) |
PARTICLE SIZE DISTRIBUTION
| F4 | +8000um | 0 | +5600um | ≤20% | +4750um | ≥40% | +4750+4000um | ≥70% | -3350um | ≤3% |
| F5 | +6700um | 0 | +4750um | ≤20% | +4000um | ≥40% | +4000+3350um | ≥70% | -2800um | ≤3% |
| F6 | +5600um | 0 | +4000um | ≤20% | +3350um | ≥40% | +3350+2800um | ≥70% | -2360um | ≤3% |
| F7 | +4750um | 0 | +3350um | ≤20% | +2800um | ≥40% | +2800+2360um | ≥70% | -2000um | ≤3% |
| F8 | +4000um | 0 | +2800um | ≤20% | +2360um | ≥45% | +2360+2000um | ≥70% | -1700um | ≤3% |
| F10 | +3350um | 0 | +2360um | ≤20% | +2000um | ≥45% | +2000+1700um | ≥70% | -1400um | ≤3% |
| F12 | +2800um | 0 | +2000um | ≤20% | +1700um | ≥45% | +1700+1400um | ≥70% | -1180um | ≤3% |
| F14 | +2360um | 0 | +1700um | ≤20% | +1400um | ≥45% | +1400+1180um | ≥70% | -1000um | ≤3% |
| F16 | +2000um | 0 | +1400um | ≤20% | +1180um | ≥45% | +1180+1000um | ≥70% | -850um | ≤3% |
| F20 | +1700um | 0 | +1180um | ≤20% | +1000um | ≥45% | +1000+850um | ≥70% | -710um | ≤3% |
| F22 | +1400um | 0 | +1000um | ≤20% | +850um | ≥45% | +850+710um | ≥70% | -600um | ≤3% |
| F24 | +1180um | 0 | +850um | ≤25% | +710um | ≥45% | +710+600um | ≥65% | -500um | ≤3% |
| F30 | +1000um | 0 | +710um | ≤25% | +600um | ≥45% | +600+500um | ≥65% | -425um | ≤3% |
| F36 | +850um | 0 | +600um | ≤25% | +500um | ≥45% | +500+425um | ≥65% | -355um | ≤3% |
| F46 | +600um | 0 | +425um | ≤30% | +355um | ≥40% | 355+300um | ≥65% | -250um | ≤3% |
| F54 | +500um | 0 | +355um | ≤30% | +300um | ≥40% | +300+250um | ≥65% | -212um | ≤3% |
| F60 | +425um | 0 | +300um | ≤30% | +250um | ≥40% | 250+212um | ≥65% | -180um | ≤3% |
| F70 | +355um | 0 | +250um | ≤25% | +212um | ≥40% | +212+180um | ≥65% | -150um | ≤3% |
| F80 | +300um | 0 | +212um | ≤25% | +180um | ≥40% | +180+150um | ≥65% | -125um | ≤3% |
| F90 | +250um | 0 | +180um | ≤20% | +150um | ≥40% | +150+125um | ≥65% | -106um | ≤3% |
| F100 | +212um | 0 | +150um | ≤20% | +125um | ≥40% | +125+106um | ≥65% | -75um | ≤3% |
| F120 | +180um | 0 | +125um | ≤20% | ≥40% | ≥40% | +106+90um | ≥65% | -63um | ≤3% |
| F150 | +150um | 0 | +106um | ≤15% | +75um | ≥40% | +75+63um | ≥65% | -45um | ≤3% |
| F180 | +125um | 0 | +90um | ≤15% | +75um | * | +75+63um | ≥40% | -53um | * |
| F220 | +106um | 0 | +75um | ≤15% | +63um | * | +63+53um | ≥40% | -45um | * |
