| 摘要 |
<p>Provided are a high-strength high-processability steel sheet for cans and a method for producing the same. The steel sheet for cans comprises: 0.001-0.080% inclusive of C; 0.003-0.100% inclusive of Si; 0.10-0.80% inclusive of Mn; 0.001-0.100% inclusive of P; 0.001-0.020% inclusive of S; 0.005-0.100% inclusive of Al; 0.0050-0.0150% inclusive of N; and 0.0002-0.0050% inclusive of B, with the balance being Fe and unavoidable impurities. In a cross section in the rolling direction, the steel sheet for cans contains 0.01-1.00%, in terms of area, of crystal grains that have a crystal-grain elongation rate of 5.0 or greater. The steel sheet for cans can be obtained by using a slab re-heating temperature of 1200oC or higher, hot-rolling a slab, then winding the same at a temperature lower than 650oC, conducting primary cold-rolling, subsequently conducting continuous annealing at a soaking temperature of 680-760oC for a soaking time of 10-20 seconds, and then conducting secondary cold-rolling at a rolling ratio of 20% or less.</p> |
