Viscosity and plasticity rise and reduction of anisotropy of low-alloy steel properties

Based on the published data, consideration is given to the possibilities of upgrading the toughness and plastic properties of low-alloy structural steels (16GS, 09G20S, 18G2, etc.) through the reduction in carbon and detrimental impurity (including sulphur) contents and also by treating the steels with the elements which are active with respect to sulphur (rare-earth metals, titanium, zirconium) and provide for the modifying action on sulphide inclusions. Drawing the impact strength properties on lateral samples nearer to those on longitudinal samples may be very favourable to the higher reliability of the structural components