Steel grit is available in a variety of different hardness grades. A typical particle size grade is GL25. G is for grit. L stands for medium hardness. The 25 in the grade name represents size. Steel grit is available in a variety of sizes, from G12 to G120.
Steel grit size uses a mesh sizing naming convention similar to that used for sandblasting the smaller the number, the bigger the grit size, the bigger number, the smaller the grit size.
Most steel grit blasting takes place in manufacturing or fabrication facilities. The restricting factor for site blasting with steel grit is the extensive amount of recycling equipment needed to justify using it on site.
Steel grit is three to four time more expensive than sandblasting sand and recycling is essential for cost efficiency. Bridge blasting often uses steel grit with specialist crews using specialist recycling equipment. Air blasting systems use the harder grades of steel grit, and wheel blasting machines use the softer grades of steel grit. Typical items blasted with steel grit in a manufacturing or fabrication facility include industrial building framework, agricultural machinery, pipework, or castings.
Understand the hardness of steel grit
Hardness is the resistance of a metal to plastic deformation, usually indentation. The term can also refer to the stiffness of a metal. The term can also refer to a metal's stiffness, ability to resist scratching, wearing, or cutting.
Chilled iron sand
For manual sandblasting. It is made by quenching it with cold water while red hot to produce more brittle particles that break apart on impact. Additional particles impact the steel surface, increasing the blast speed. They will always maintain a sharp edge and are 8-12% faster than standard steel grit. The angular shape provides a more consistent profile and superior coating adhesion.
GL steel grit
Loses sharp edges during shot peening, best suited for descaling and surface preparation applications.
GH steel grit
GH has maximum stiffness and maintains an edge. Mainly used in sandblasting shops where job requirements take precedence over cost considerations (e.g. when rolling mill drums are used or special surface treatments are required). Mainly used for air sandblasting in sandblasting workshops.
advantage
The angular shape of the steel grit provides a uniform structure and provides optimal impact resilience,Leaves a uniform surface profile,High impact fatigue resistance,High bulk density,Low crumb Degree,low dust content , improves sandblasting machine safety and visibility conditions and helps optimize speed and productivity,High recyclability Carbon steel shot does not completely shatter when it hits a surface, so it can be recycled hundreds of times.
Steel shot is widely used for descaling and rust removal treatment
How are steel shot and grit used to treat steel surfaces?
Steel shot is widely used for descaling and rust removal treatment
What are the unique characteristics of steel shot?
