HIGH-STRENGTH ARMOR SHEET STEEL Russian patent published in 2002 - IPC

FIELD: making high- strength armor sheet steel used for protection of persons against small arms by manufacture of bullet-proof jackets, shields, helmets and other protective devices; as well as for manufacture of bodies of light armored vehicles. SUBSTANCE: high-strength armored sheet steel contains the following components, mas.%: carbon, 0.44-0.48; silicon, 1.2-1.6; manganese, 0.3-0.6; chromium, 1.3-1.7; nickel, 1.4-1.8; molybdenum, 0.2-0.4; and iron, the balance. EFFECT: enhanced bullet-proof resistance against piercing action of bullets with steel thermally hardened slug. 2 tbl