The high degree of purity and the total absence of impurities in Corundum allows to obtain perfectly clean surfaces ready for subsequent processing. It also allows the treatment of noble metals, plastic, glass, stainless steel, and the use in the dental, goldsmith, etc. sectors.

The sharp-edged grain, the high hardness (9 Mohs: only one point lower than diamond), the exceptional abrasive capacity and the good resistance to impact make it particularly suitable for sandblasting operations, especially in recirculation systems.

The wide range of granulometry and the various types available allow to achieve roughness and degree of surface finish suitable for multiple needs. It can be used on compressed air sandblasting machines, both pressure and vacuum.

CHARACTERISTICS:

shape: sharp-edged.

Standards: MIL-A-21380B.

ISO 11124, ISO 11126-7, FEPA.

Hardness: 9 Mohs (MOHS scale). 2400-2500 kg / mm2 (KNOOP scale)

Specific weight: ≈ 3.94 g / cm.

Conductivity: 2 ÷ 6x10-12 om / cm.

CHEMICAL ANALYSIS:

Al2O3 ≥ 93%.

TiO2 ≈ 3.0%.

SiO2 ≈ 0.7%.

Fe2O3 = 0.3 to 0.6%.

CaO ≈ 0.5%.

Na2O + K2O = traces.

Free silica = absent.

Pb ≤ 5 ppm.

LEGAL NOTE:

corresponds to ISO 11126-10 N / GA / G ensures a safe working environment meets all health and safety requirements.

DIMENSIONS AND SIGNS:

As an indication, for each code, the dimension with the largest percentage of material is given:

 RB12 = 1.7 - 2.00MM (1765 μm)

 RB14 = 1,4 - 1,70MM (1470 μm)

 RB16 = 1.18 - 1.40MM (1230 μm)

 RB20 = 1.0 - 1.18 mm (1040 μm)

 RB24 = 0.71 - 0.85MM (745 μm)

 RB30 = 0.6 - 0.71MM (625 μm)

 RB36 = 0.5 - 0.60MM (525 μm)

 RB40 = 0.425 - 0.50MM (438 μm)

 RB46 = 0.355 - 0.425MM (370 μm)

 RB54 = 0.30 - 0.355MM (310 μm)

 RB60 = 0.25 - 0.30MM (260 μm)

 RB70 = 0.212 - 0.25MM (218 μm)

 RB80 = 0.18 - 0.212MM (185 μm)

 RB100 = 0.125 - 0.15MM (129 μm)

 RB120 = 0.106 - 0.125MM (109 μm)

 RB150 = 0.075 - 0.106MM (82 μm)

 RB180 = 0.053 - 0.09MM (69 μm)

 RB220 = 0.045 - 0.075MM (58 μm)