Steel grit blasting is ideal for aggressive cleaning applications. Steel grit will quickly strip many types of surface contaminants from steel and other foundry metals. Steel grit is softer than aluminum oxide and does not fracture as easily, making it ideal for aircraft and aero-space applications. The angular nature of steel grit produces an etched surface on metal for superior adhesion of paint, epoxy, enamel, rubber and other coatings.
Different chemistries will lead to different operating results, depending on the size and hardness of the grit. Since Kramer is a primary steel grit supplier, multiple chemistries of steel grit are available. Steel grit that is formulated as a softer (40-50 HRC) metal will round off rapidly, making it ideal for quick stripping of oxides and cleaning of molds. Harder steel grit (55-65 HRC) will maintain the angular nature of the grit to provide continuous cutting action.
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Finishes Produced by Various Sizes of Steel Grit
| Grit Size |
Approximate
Size |
Finish Produced |
| G-120 |
0.005" |
Light etch |
| G-80 |
0.007" |
Medium etch |
| G-50 |
0.011" |
| G-40 |
0.017" |
| G-25 |
0.023" |
Sharp etch |
| G-18 |
0.039" |
Deep etch rough |
| G-16 |
0.046" |
| G-14 |
0.055" |
| G-12 |
0.066" |
Very rough |
Steel Shot Specifications
| Size |
All material is screened to meet or exceed SAE and SFS
specifications. |
| Chemistry |
Carbon: > 0.80% (depends on hardness)
Sulfur: < 0.05%
Phosphorous: < 0.05% |
Minimum
Density |
7.3 g/cc (445 lbs/ft3) |
Bulk
Density |
230 - 260 lbs/ft3 |
| Hardness Available |
(based on chemistry)
KGP: 40-51 HRC
KGB: 47-50 HRC
KGL: 54-61 HRC
KGH: 60+ HRC |
Scrap surcharge variance in effect at time of shipment. Please call for current surcharge.
Re-manufactured steel grit is available at a reduced cost.
Packaged in 50 lb bags (2000 lb minimum) or 55 gallon drums.
