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What is Steel Shot used for?
Steel shot is a form of ballistic substance that is used as a projectile in shotguns and pellet guns, as well as for abrasive blast cleaning and shot peening. Steel shot is a metallic pellet made of an iron-carbon alloy that is bluish-gray in color.
What is Steel Shot?
Steel shot is a form of ballistic substance that is used as a projectile in shotguns and pellet guns, as well as for abrasive shot blasting machine and shot peening operations. Steel shot is a metallic pellet made of an iron-carbon alloy that is bluish-gray in color. They are finished in a variety of ways, allowing for a wide range of corrosion resistance levels.
The grade or size of the steel shot used will determine the final polish produced on the metal's surface. Via a peening process caused by the shot's acceleration, the round ball shape of the steel shot generates a clean, smooth, and polished surface. Steel shot is also used in shot peening machine applications to provide compressive strength to torque or load bearing metal parts such as crankshafts, engine turbine blades, and heavy-duty springs.
A smoother and more polished surface will come from using a smaller steel shot. A larger shot will clean more aggressively but will result in a rougher surface. Steel shot can be accelerated onto the surface of the part using both air-powered and wheel blast methods.
Steel shot can be recycled up to 3000 times before it needs to be replaced due to its hardness and density. Because steel shot does not use an abrasive method, the abrasive blasting machine process produces very little dust.
Steel shot angular comes in three hardness grades: GH, GL, and GP. It is suitable for use in compressed air blasting machines as well as wheel blasting systems, particularly with wear protection. This abrasive will eventually round off in the operating mixture, depending on the degree of hardness. Steel shot angular is great for cleaning, roughening, descaling, and blasting metallic workpieces prior to thermal spray coating.
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Steel Shot Specification
| 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 | ca. 1.535 °C |
| Specific gravity | ca. 7 g/cm3 |
| Bulk density* | ca. 4,0 – 4,6 g/cm3 |
| Microstructure | martensitic |
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Steel Shot Uses
The subsequent classifications are used for steel shots:
- Original or zinc-plated. Steel shot is typically polished in one of two ways: polishing the original shot or zinc plating. Rust and corrosion are eliminated with zinc-plated shot.
- Load the data. Various types of steel shot can resist a wide range of load forces.
- Industrial standards. Steel shot is classified using a variety of ballistic industry classifications. They are based on softness, form consistency, and overall quality ratings.
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