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Blasting Media

Steel Grit

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.

Learn more about the Steel Scrap Surcharge
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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 or 55 gallon drums.

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