What are the common materials for making piston rods?

The piston rod is a connecting component used to support the work of the piston. It is mostly used in oil cylinders, cylinders, hydraulic and pneumatic, industrial and other products. It is used in almost all products in the mechanical industry. So what are the common materials for making piston rods? Let's introduce it below: The piston rod is mainly made of the following materials:
1. 45# steel. Generally speaking, piston rods are made of 45# steel. 45# steel is a high-quality carbon structural steel with low hardness and easy to machine. After quenching, its surface hardness can reach 45~52HRC. Moreover, it can also have good cutting performance and 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 mold steel. It has relatively good comprehensive mechanical properties and is generally suitable for the manufacture of shaft parts with medium precision and high rotation speed. Therefore, it is often used in piston rods with larger impact forces 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. Commonly used materials include 304, 316, and 402. These materials have relatively good weldability, polishability, heat resistance, corrosion resistance, and corrosion resistance. Through precision cold drawing, precision grinding, high-precision polishing and other processes, the piston rods manufactured by them have excellent All technical indicators meet and exceed national standards, so they are often used in oil cylinders, cylinders, and shock absorbers.