<p>The heat transfer coefficient of the salt at different parameters was calculated by the inverse heat transfer method. The maximum heat transfer coefficient H_max increases with the water content and speed of stirring, while H_max decreases with the increase of salt temperature. The cooling capacity and rate of the salt in the low temperature range are enhanced with increase in water content, stirring speed, and salt temperature. The simulation analysis of salt-quenching and oil-quenching on a carburized distortion sample was proceeded by coupling the temperature, metallic microstructure, and strain. The simulated temperature and distortion were agreed well with the experimental results. By comparison with oil-quenching, the salt staged quenching process was analyzed using the transformation results.</p>