Iron alloy containing carbon, silicon, manganese, chromium and nickel is used as a material for products having a high ballistic protective action

摘要

Use of an alloy containing (in wt.%): 0.3-0.6 C, 0.08-0.59 Si, 0.1-0.6 Mn, 0.9-1.5 Cr, 2.4-5.5 Ni and a balance of Fe as a material for products having a high ballistic protective action is new. The alloy contains P and S in a sum of less than 0.025 wt.% and the sum of Mo and W does not exceed 0.38. Mo is less than 0.28, W less than 0.29 and Mo + W/2 less than 0.38. The sum of the impurity elements As, Sb, Bi, Sn, Zn and B is less than 0.011. Preferred Features: The alloy contains additions of (in wt.%): 0.36-0.54, preferably 0.41-0.49 C, 0.11-0.39 Si, 0.18-0.49, preferably 0.25-0.38 Mn, 1.15-1.4 Cr and 2.9-4.9, preferably 2.56-3.9.