The steel of DS basically satisfied the specified requirements, by the limitation limit due to an increase in the content of manganese above the conditional requirements, and later the increase in nickel. The steel of DS turned out to be very corrosion -resistant steel with good shock viscosity (at a temperature of +20 ° 10-18 kgm/cm2) and a very low threshold of coldnolism (below -60 °). The limit of fatigue of steel ds is quite large Z ± = 28.5 kg/mm2 (when using smooth samples for bending). The sensitivity of the steel “cutting — the limit of fatigue of cut samples is 19 kg/mm2, which gives a decrease by 35%; The limit of corrosion fatigue is approximately 21 kg/mm2 (decrease by 26%). The sensitivity of steel to stick and aging is also relatively small; The shock viscosity during gluing and aging changes less than that of other steels and the threshold of coldness increases very slightly. Thus, in the point of view of dynamic work, the steel of DS had very high indicators.
