1. 45# steel: Generally speaking, the piston rod is made of 45# steel. 45# steel is a high-quality carbon structural steel with low hardness and easy cutting. After quenching, its surface hardness can reach 45-52HRC. Moreover, it can also have good cutting performance, high strength, toughness and other comprehensive mechanical properties, so it is one of the commonly used materials for shaft parts.
2. 40Cr steel: 40Cr steel is also a commonly used material in the production of piston rods. It is not only a medium carbon quenched and tempered steel, but also a cold heading die steel. It has relatively good comprehensive mechanical properties and is generally suitable for the manufacture of shaft parts with medium precision and high speed. Therefore, it is often used in some piston rods with large impact force and heavy load transmission requirements, because it can effectively ensure that the piston rod has sufficient working strength.
3.Stainless steel material: Stainless steel is a material used in the production of piston rods. It is resistant to weak corrosive media such as air, steam, and water. The commonly used materials are 304, 316, and 402. The weldability, polishability, heat resistance, corrosion resistance and corrosion resistance of these materials are relatively good. Through precision cold drawing, fine grinding, high-precision polishing and other processes, the quality of the piston rod manufactured by it is relatively good. All technical indicators meet and exceed the standards, so they are often used in oil cylinders, cylinders, and shock absorbers.
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