在淬火基体成分计算的基础上，根据某一淬火温度下的奥氏体基体的化学成分，CrWMoV合金钢淬火硬度可以近似计算为HRC=α(1+β)/(0.00915α＋0.00527)，其中α为基体中含碳量的平方根，β为合金元素对马氏体强化的修正因子。上述淬火硬度计算公式隐含着洛氏硬度测定和马氏体强化机理的对应关系，对其它钢种也适用。CrWMoV高合金钢在高温回火时会出现二次硬化特征，二次硬化的最高回火硬度既与各类型碳化物沉淀的热力学和动力学有关，也与残余奥氏体分解过程有关。依据奥氏体化温度下基体成分，提出基体成分配比碳公式为Cp＝0.011W＋0.02Mo＋0.057Cr＋0.19V，二次硬化的回火硬度的计算公式为Hc=a（1+b）/(00127a＋000267)，其中a为基体碳饱和度，b为碳化物沉淀量的修正因子。

On the basis of matrix composition calculation, quenching hardness can be written as HRC=α(1+β)/(0.00915α＋0.00527) according to austenite compositions at some austenitizing temperature, where α is square root of carbon content in the matrix and β is correctness factor of alloy elements in the matrix. The beforementioned formula for quenching hardness implies that there exists a relation of Rockwell hardness measurement with martensite strengthening. The formula is suitable for other steels. There is secondary hardening at high tempering temperature in the CrWMoV high alloy steels. The highest hardness is related not only to the thermodynamic conditions of all types of carbides, but also to the progress of the residual austenite transformation. According to the austenite matrix composition at austenitizing temperature, both formula Cp＝0.011W＋0.02Mo＋0.057Cr＋0.19V and Hc=a（1+b）/(0.0127a＋0.00267) are brought forward, in which a is carbon saturation in the matrix, b is modified factor of the amount of carbides precipitation.