棕刚玉30#Brown Fused Alumina是一种硬度高，韧性好的氧化铝研磨材料。它是将煅烧铝矾土进行高温熔融再凝固后得到的人造磨料。一级棕刚玉氧化铝含量为94-95%，硅铁含量低，适用于高速切割、打磨、干式、湿式喷砂等应用。
Brown Fused Alumina 30 # is an alumina grinding material with high hardness and good toughness. It is an artificial abrasive obtained by high-temperature melting and solidification of calcined bauxite. The content of primary brown fused alumina is 94-95%, with low silicon iron content. It is suitable for high-speed cutting, polishing, dry, wet sandblasting and other applications.
PRODUCT/产品: Brown Fused Alumina F30/棕刚玉F30
Other Name：Brown Aluminum oxide/Brown Corundum/Brown Electrocorundum 14A F30
CHEMICAL COMPOSITION/化学成分:
| Item | Guarantee Value/保证值（%） | Typical Value/典型值（%） |
| Al2O3 | ≥95 | 95.05 |
| Fe2O3 | ≤0.3 | 0.16 |
| SiO2 | ≤1.5 | 0.98 |
| TiO2 | ≤3.0 | 2.82 |
| Magnetic Content | ≤0.05 | 0.04 |
PHYSICAL PROPERTIES/物理指标:
| Specific Weight/比重 | Hardness/硬度 | Bulk Density/堆积密度 | Melting Point/熔点 |
| 3.95 g/ cm3 | 9.0Mohs scale | 1.82-1.90g/cm3 | 2050℃ |
PARTICLE SIZE DISTRIBUTION/粒度分布:
| Grit粒度 | Mesh# | Mesh size(um) | Weight Standard(%) | Typical Value(%) |
| Coarsest Grit最粗粒 | +18 | 1000 | 0 | 0 |
| Coarse Grit粗粒 | +25 | 710 | Max. 25 | 4.6 |
| Basic Grit基本粒 | +30 | 600 | Min. 45 | 52.8 |
| Mixed Grit混合粒 | +30 +35 | 600 500 | Min. 65 | 91.4 |
| Fine Grit细粒 | -40 | 425 | Max. 3 | 0.6 |
APPLICATIONS/应用场景：
- Bonded Abrasives/ 固结磨具
- Wear Resistance Floor/ 耐磨地坪
- Alumina Ceramics/ 氧化铝陶瓷
- Refractory/ 耐火材料
- Blasting/ 喷砂
