FIELD: metallurgy.
SUBSTANCE: hot-rolled low-carbon steel bar is used for manufacture of laminated packages consisting of many steel sheets laid on each other. Bar having thickness of 0.65-1.5 mm and fine grained structure is obtained; at that, bar is not subject to additional annealing and cold rolling, and made from steel containing the following, wt %: C≤0.06, Mn-(0.10-0.20), Si<0.03, P≤0.010, S≤0.005, Cr≤0.10 Ni≤0.12, Mo≤0.03, Al- (0.030-0.050), the rest is Fe and inevitable impurities, has degree of parallelism of ≤0.02 mm and structure with ferrite grains with size of more than 9 as per ASTM E112 standard.
EFFECT: improving magnetic properties, providing flatness and absence of burrs.
8 cl, 1 tbl, 6 dwg
