Patent ID: 6056832
Filing Date: 2000-05-02
Classification: C21D,C22C

Abstract:
Process for producing a sheet or strip for making a can obtained by drawing and ironing, from steel having the following composition in percentage by weight;Carbon less than 0.008%Manganese between 0.10 and 0.30%Nitrogen less than 0.006%Aluminum between 0.01 and 0.06%Phosphorus less than 0.015%Sulphur less than 0.020%Silicon less than 0.020%a maximum of 0.08% of one or more of the elements selected from copper, nickel and chromium, the remainder being iron and residual impurities, provided that the steel contains at least 0.0015% of C. which process comprises hot rolling a slab into a hot sheet or strip having a thickness between 1.8 and 2.5 mm, cold rolling the hot sheet or the strip with a reduction to bring the sheet to a thickness between 0.26 and 0.32 mm, subjecting the sheet to a recrystallization annealing at a temperature lower than Ac1 and cold re-rolling with a reduction of between 10 and 40%.