carbidegrit

Carbide grit refers to abrasive particles composed of carbide compounds that are milled into granular form for use in abrasive blasting, grinding, polishing, and surface finishing. The term covers several carbide materials, with silicon carbide (SiC) being the most common, alongside tungsten carbide (WC) and boron carbide (B4C). Silicon carbide grit is widely used because of its hardness and sharp, angular grain.

Properties vary by material. Silicon carbide grit has very high hardness, good thermal conductivity, and relatively low friability, producing fast cutting action and a clean edge. Tungsten carbide grit is tougher and more impact-resistant, offering improved grit survival in aggressive conditions. Boron carbide grit is extremely hard but brittle and is used in specialized applications. Grains are manufactured in different shapes and sizes, typically with angular morphology to promote cutting action.

Manufacture and sizing: Carbide grit is produced by crushing or milling carbide blocks or by processes that yield controlled particle sizes. The grains are sorted into standardized grit grades (for example coarse to fine ranges) that determine cutting aggressiveness and finish. In blasting applications, the choice of grit size influences material removal rate and surface texture.

Applications: In abrasive blasting, carbide grit is used to remove coatings, clean surfaces, and prepare materials such as metal, stone, and hard ceramics. In grinding and polishing, carbide grits appear in bonded and coated abrasives and in lapping media for precision finishing on hard materials.

Safety and handling: Working with carbide grit generates airborne dust that can be hazardous if inhaled; appropriate respiratory protection, local exhaust, and dust control are required. The material is very hard and can wear tools and equipment, so proper containment and maintenance are necessary.