acélgrit

Acélgrit, also known as steel grit, is a sharp-edged abrasive material manufactured from molten steel that has been quenched and fractured. It is a ferrous abrasive that is widely used in surface preparation applications, particularly for blasting and cleaning metal surfaces. The angular shape of acélgrit allows it to efficiently cut into metal, removing rust, scale, paint, and other contaminants. Its hardness and durability make it suitable for repeated use in abrasive blasting equipment.

The production process typically involves melting steel, atomizing it with high-pressure water or air, and then heat-treating the resulting particles. The fractured pieces create sharp edges, which are essential for its abrasive properties. Acélgrit is available in various sizes, determined by screen classification, allowing users to select the appropriate grit for specific surface finishes and cleaning requirements. Different grades of acélgrit are characterized by their size and hardness, influencing their cutting speed and the resulting surface profile.

Common applications for acélgrit include preparing steel structures for painting or coating, cleaning castings and forgings, and descaling hot-rolled steel. It is also used in industries such as shipbuilding, bridge construction, and automotive manufacturing. While effective, the use of acélgrit generates dust, and appropriate safety measures, including respiratory protection and ventilation, are necessary during its application. Its ferrous nature means it can contribute to flash rust on certain substrates if not properly managed.