The large-diameter thick-walled steel pipe has super strong bearing performance and can withstand a large impact force. It is widely used in the frame at present. When the vehicle is turning at a high speed or braking and stopping suddenly, the high-strength steel pipe can easily digest the strong impact. The impact force ensures the safety and maneuverability of the vehicle in emergency driving situations, and protects the vehicle body well.
Why does the thick-walled large-diameter carbon seamless steel pipe have such a good bearing capacity? Practice has proved that there is an approximate corresponding relationship between the hardness value and the strength value between various hardness values of metal materials, which ensures that the thick-walled large-diameter seamless steel pipe has such a good bearing capacity. Steel pipe bearing capacity. Because the hardness value is determined by the initial plastic deformation resistance and the continued plastic deformation resistance, the higher the strength of the material, the higher the plastic deformation resistance, and the higher the hardness value.
After the thick-walled large-diameter seamless steel pipe yields to a certain level, due to the rearrangement of the internal grains, the thick-walled large-diameter seamless steel pipe’s resistance to deformation is improved again. At this time, although the deformation develops rapidly, it can only increase with the stress. increases as the stress increases until the stress reaches a maximum value. After that, the ability of the steel to resist deformation is significantly reduced, and a large plastic deformation occurs at the weakest point, where the section of the specimen shrinks rapidly, necking phenomenon occurs, until fracture failure. The maximum stress value before the tensile fracture of the thick-walled large-diameter seamless steel pipe is called the strength limit or tensile strength.
Therefore, the current thick-walled large-diameter seamless steel pipe has good bearing capacity and impact force, so that the safety and maneuverability in many aspects are well guaranteed. This makes thick-walled and large-diameter seamless steel pipes widely used in the market.