?Wuxi Duorunde Steel Pipe Co., Ltd. (Let me answer); High-precision precision steel pipes and cold-drawn seamless precision pipes? After stress, plastic deformation mainly occurs in the internal grain area of ??the steel pipe. ?
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First of all, what needs to be understood is that high-precision precision steel pipes and cold-drawn seamless precision pipes are made of high-strength steel. Therefore, its plasticity and toughness are mainly affected by factors such as the chemical composition, microstructure, and manufacturing process of the steel. ?
After being stressed, the plastic deformation of these steel pipes mainly occurs in their internal grain regions. Specifically, when the steel pipe is subjected to external forces, its internal grains will undergo corresponding strains. Because the grains of high-strength steel are usually relatively small, their plastic deformation ability is relatively strong. Under the cold drawing process, the grains of high-strength steel become smaller and the dislocation density increases, thereby improving the plasticity and toughness of the material.
In addition, the plastic deformation of steel pipes after being stressed is also affected by its manufacturing process. For example, in the manufacturing process of cold-drawn seamless precision pipes, by using advanced cold-drawing processes and equipment, the internal grains of the steel pipe can be made more uniform and compact, thereby improving its plasticity and toughness. At the same time, quality control measures during the manufacturing process, such as selecting appropriate raw materials and conducting strict heat treatment, can also effectively control the plasticity and toughness of steel pipes.
In short, the plastic deformation of high-precision precision steel pipes and cold-drawn seamless precision pipes after stress mainly occurs in their internal grain regions. By optimizing the microstructure and manufacturing process of high-strength steel, the plasticity and toughness of these steel pipes can be improved to meet the needs of different fields. At the same time, when selecting and using these steel pipes, comprehensive considerations need to be made based on specific application scenarios and needs to give full play to their excellent mechanical properties.