Classification of steel shot

　　1. High carbon steel shot: also called cast steel shot (C content 0.8-1.2%), also known as steel shot.

　　2. Low carbon steel shot: Generally, the carbon content is below 0.2, which is generally relatively high carbon.

　　3. Chromium-molybdenum alloy steel shot: There are chromium and molybdenum in the chemical composition. In actual production, one is to add ferrochromium and ferromolybdenum separately, and the other is to use raw materials containing chromium-molybdenum alloy. Because there is no requirement for the content of chromium and molybdenum in the steel shot standard, and the price of chromium and molybdenum is relatively expensive, most steel shot does not contain chromium, let alone molybdenum.

　　4. Non-standard steel shot: The use of inferior raw materials and the chemical composition of the steel shot does not meet the standard, which is just the opposite of the national standard steel shot we usually say.

　　5. Recycling shot: The steel shot, or steel grit, or steel wire cut shot used by the customer is recycled and then screened and processed. After packaging, it is called the recycled shot.

　　6. Aviation steel shot: used for aerospace industry, military type enterprises, the standard is AMS2431/1 or AMS2431/2, the hardness is ASR series 45-52HRC, and ASH series 55-62HRC, the quality requirements for the steel shot itself Very high, Owen steel shot is relatively well-known.

　　7. Strengthened steel shot: The hardness is higher than that of ordinary steel shot. The hardness is customized according to customer needs. Generally, the hardness is concentrated in 55-62HRC, which is generally used for processing gears and springs.

　　8. Ultra-fine steel shot: Most of the hardness is above 60HRC, the particle size is below 0.15mm, the output is very low, the market demand is low, and the price is very expensive.