The invention relates to a steel metallurgical material, in particular to a
tinning substrate for deep-
punching food cans and a production method thereof. The
tinning substrate comprises the following
chemical element compositions in percentage by weight: less than or equal to 0.04% of C; less than or equal to 0.02% of Si, 0.20-0.25% of Mn, less than or equal to 0.02% of P, less than or equal to 0.018% of S, 0.005-0.040% of Als, and the balance iron and unavoidable inclusion. The production method comprises the following processes:
smelting,
continuous casting, heating, hot rolling, cooling and reeling,
pickling and cold rolling, and annealing and leveling, wherein the
heating temperature is 1210 DEG C, the primary rolling temperature is 1100-1150 DEG C, the final rolling temperature is 890+ / -10 DEG C, the reeling temperature is 560+ / -15 DEG C, the annealing temperature is 670-690 DEG C, and others are performed as conventional processes. The invention has small
production control difficulty, low cost, stable performance and high can manufacturing percent of pass, and is suitable for manufacturing deep-
punching food cans and can covers with more complex transformation.