Characteristics and Applications of Alloy Steel Shot

　　Alloy steel shot, as the name suggests, is shot made from steel wire. Depending on the type of steel wire, alloy steel shot can be classified into different types.

　　Generally speaking, the lifespan of alloy steel shot is 3000-3500 cycles, meaning it can be recycled this many times. There is no actual scrapping standard; it gradually wears down and turns into dust during the recycling process. It has a wide range of applications, suitable for surface treatment of almost any workpiece. Because of its long lifespan, alloy steel shot is highly favored by customers, and the market is excellent with large-scale consumption, especially in shipyards, mold industries, foundries, and steel mills. Generally, alloy steel shot has a 15-30% longer lifespan than cast steel shot because it lacks porosity and has better uniformity in structure. Alloy steel shot is often used for precision parts, while stainless alloy steel shot is often used for stainless steel parts and aluminum castings because it does not contaminate the castings after shot peening and is more wear-resistant. High-hardness alloy steel shot is used for strengthening blades, cylinders, and connecting rods in aero-engines and diesel engines. Because of its bright appearance and rust-free properties, alloy steel shot is widely used in the surface polishing of high-hardness workpieces such as automotive springs, suspension springs, hardened gears, screws, chains, various stamped parts, standard parts, and stainless steel. It provides surface descaling and strengthening for processed workpieces.

　　Applications of Alloy Steel Shot: Alloy steel shot is widely used in the foundry industry and in steel plate pretreatment. After workpieces are removed from the mold, alloy steel shot is used to remove abrasive particles from the workpiece surface. When used with suitable equipment, alloy steel shot is undoubtedly the best abrasive for surface cleaning due to its durability. The manufacturing process of alloy steel shot involves first melting high-quality steel blocks, then using high-pressure water jets to form microparticles. The resulting shot is reheated to purify and homogenize, and then quenched. After quenching, the steel shot is dried and reheated in a furnace to achieve the desired hardness. The tempered alloy steel shot is then separated into different grades through a mechanical sieve. Alloy steel shot products of different particle sizes and hardness are used in different processes, such as surface strengthening.