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| Chemical Composition |
| The finished shot shall have the chemical compositions as follows: |
| Carbon |
0.80-1.20% |
| Silicon |
> 0.40% |
| Manganese |
0.35-1.20% |
| Phosphorus |
<0.050% |
| Sulfur |
<0.050% |
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Standard Hardness
The hardness of 90% of all shot paticles shall be within the range of 40-51 HRc. (Rockwell C) |
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General Appearance
The steel shot shall be as nearly spherical as commercially possible and no more 20% of the shot particles shall have objectionable defects. |
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Microstructure
The microstructure of steel shot shall be uniform martensite, tempered to a degree consistent with the hardness range,with fine,well distributed carbides, if any. |
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Density
The density of steel shot shall be not less than 7.4 g/cc. |
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| Size Distribution (as per SAE J 827) |
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