The nose temperatures of both the pearlite and bainite transformations range from 920K to 980K and 570K to 610K for low C cast iron, and 900K to 950K and 590K to 640K for high C cast iron, respectively.
The low C cast iron shows great difference in nose time of pearlite and bainite transformations at 1273K austenitization and the pearlite transformation is located at the long time side more than 3 times as much as the bainite transformation. When the T is increased to 1373K, both transformations are delayed approximately twice.
The nose time of pearlite and bainite transformations are almost the same at 1273K austenitization and both are shifted to the long time side at 1373K austenitization