Sintered parts manufactured by the method of powder metallurgy structural parts that have certain dimensional accuracy and can bear loads such as tension, compression, and distortion or work under friction and wear conditions, also known as sintered structural parts. The main advantages of sintered structural parts are material saving, labor saving, low production cost, suitable for mass production, and significant energy saving effect.

Powder metallurgy structural parts are widely used in industries such as automobiles, agricultural machinery, sewing machines, cameras, and power tools. The main difference between such materials as sintered structural parts and ordinary casting and forging materials is that their density is a variable. When the chemical composition and microstructure are the same, the performance of this type of material is a function of its density.

Due to the existence of residual pores in powder metallurgy structural parts, its ductility and impact value are lower than those of cast and forging materials with the same chemical composition, which limits its application range. The development trend of this type of material is to reduce or eliminate residual pores inside the material, and to develop iron-based materials alloyed with chromium, manganese, titanium, silicon and other elements to improve the mechanical properties of the material and expand the application field.