Schnadt Test of Mn-Si high tensile steels, 12mm thickness, were executed.
The following conclusions are obtained from the test results about the steels tested :
(1) With the exception of K-1, Y-4 and M-8, the notch ductility of the tested steels are excellent. However, it is worth notice that the maximum absorbed energies of N-3 and N-6 are considerably lower than that of the other steels.
(2) There are clear correlations between the transition temperatures obtained by Schnadt and Charpy Test. There are no significant superiority between these two tests.