Popuar 2mm p265gh sheet thickness range factory price

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45Mn2 steel is a medium-carbon quenched and tempered steel with high strength, wear resistance and hardenability. The critical hardening diameter in oil is 10-25mm, and the critical hardening diameter in water is 22-45. After quenching and tempering, 45Mn2 alloy structural steel has good comprehensive mechanical properties and good machinability; but it has overheating sensitivity and temper brittleness tendency during heat treatment, easy to crack in water quenching, sensitive to white spots, low weldability and cold deformation plasticity and other shortcomings.

Temperature has a great influence on the strength of the material, P265GH sheet thickness range. When the temperature exceeds a certain value, the strength limit of the steel will be reduced. The higher the temperature, the lower the strength. In addition, the longer the steel is used at high temperature, the lower the strength. Therefore, if the steel works at high temperature for a long time, the instantaneous strength of the steel can not be used as its performance index, nor can the room temperature performance replace the high temperature performance.

Both the cross rolling method and the extrusion method must first heat the tube blank or ingot, and the steel tube produced is called hot rolling tube. Steel pipes produced by hot working can sometimes be cold worked as required. There are two methods of cold working: one is cold drawing, that is, drawing the p265gh sheet thickness range steel pipe through the drawing die to make the steel pipe gradually thin and elongate; the other is cold rolling, which is the method of applying the hot rolling mill invented by the menesmann brothers to cold working. The cold working of p265gh sheet thickness range seamless steel pipe can improve the size accuracy and finish of steel pipe, and improve the mechanical properties of materials.

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