• cheap gb t1591 q345e steel plate

  • After quenching and tempering, 40Cr alloy steel plate and cheap gb t1591 q345e steel plate sheet have good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The hardenability of steel cheap gb t1591 q345e steel plate is good. It can be hardened to Ф28 ~ 60mm during water quenching and Ф15 ~ 40mm during oil quenching. In addition to quenching and tempering, this steel is also suitable for cyanidation and induction hardening. The cutting performance is better. When the hardness is HB174 ~ 229, the relative cutting workability is 60%. 40Cr alloy steel is suitable for making medium-sized plastic molds.

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GB/T1591 Q345 steel include Q345A, Q345B, Q345C, Q345D, Q345E steel. GB/T1591 Q345 steel plate external implementation of the standard is: gb709, the internal implementation of the standard is: gb/t1591-94, due to the reasons for the implementation of the standard, such as the negative tolerance of the steel plate.

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