Hardened Steel Grit
Hardened steel grit is available in three hardness classes: GH, GL and GP. It can be used both in compressed air blast systems and in wheel blast systems – preferably with wear protection. Depending on the degree of hardness, this abrasive will sooner or later round off in the operating mixture. Angular cast steel is ideal for cleaning, roughening and descaling, as well as for preparatory blasting before coating metallic components.
Areas of application
- Reusable abrasive
- Rust removal
- Paint stripping
- Descaling
- Surface preparation prior to coating
- Blast cleaning
- Rough blasting
Blasting systems
- Pressure blast systems (GH)
- Wheel blasting systems (GL, GP) (wear protection recommended)
Physical properties
- Hardness: GP 40 – 53 HRC (390 – 550 HV)
- Hardness: GL 54 – 60 HRC (570 – 720 HV)
- Hardness: GH > 61 HRC (>740 HV)
- Grain shape: angular
- Melting point: approx. 1,535 °C
- Specific gravity: approx. 7 g/cm3
- Bulk density*: approx. 4.0 – 4.6 g/cm3
- Microstructure: martensitic
*depending on granular size
For safety reasons, we recommend that you use a protective strainer when filling the blasting equipment.