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The purpose of tempering 15CrMo steel

Quenching can improve the plasticity and toughness of 15CrMo steel and reduce its brittleness, but it often inevitably reduces the strength and hardness of 15CrMo steel. One of the purposes of tempering is to reduce or eliminate the residual stress caused by quenching, which is especially important for stabilizing the dimensions of 15CrMo steel products.

Generally speaking, it is dangerous and not allowed to put quenched 15CrMo steel parts into use without tempering. Some large steel parts or complex parts with high carbon content explode suddenly while waiting for tempering after quenching, which illustrates the importance of tempering and tempering in time.

It can be carried out in a wide temperature range, and the properties of 15CrMo steel can also be changed in a wide range. Tempering is an effective means to adjust the properties of 15CrMo steel parts to meet the requirements of use.