On the Temper-Brittleness of Si-Mn-Cr Steels (1st Report)

On the Effect of Carbon.

Abstract

The authors carried out: a series of experiments on the temper-brittleness of silicon-manganese-chromium steel used in the construction of machinery. This investigation is concerned the effect of carbon on the temper-brittleness of two silicon-manganese-chromium steel. As the result of this investigation it was ascertained that the “First Temper-Brittleness” producing at tempering range of 453_??_525° is observed at above 0.25_??_0.30% carbon content, while the “Second Temper-Brittleness” occuring above 525° increases with carbon content.