HIGH-FRAGMENTATION STEEL FOR MANUFACTURE OF BODIES OF FRAGMENTATION AMMUNITION, BODY AND AMMUNITION

摘要

FIELD: development of material for manufacture of bodies of fragmentation ammunition, in particular, development of high-fragmentation steel. SUBSTANCE: high-fragmentation steel contains components in the following relation, mas. %: carbon, 0.7-0.9; manganese, 1.5-2.5; silicon, 1.2; iron, the balance. At manufacture of bodies of high-fragmentation ammunition from it by hot stamping with subsequent heat treatment the steel yield point makes up at least 500 MPa, and the reduction of area at fracture is at least 15%. At a blasting test of fragmentation mock-up No.12 manufactured of steel, outfitted with compound A-IX-2, the relative mass of the middle cut of fragments (4≥m1g) shall make up at least 0.4, and the number of fragments with a mass of more than 0.25 g, at least 1500. EFFECT: enhanced service properties at a shot and injection in an obstacle and intensive crushing with a high yield of fractions of middle cut with a mass of 1 to 4 g. 5 cl, 23 dwg, 6 tbl, 2 ex