Hard tinned sheet steel and its production method

The invention relates to a hard tinned sheet steel produced from low carbon aluminium killed steel so as to solve the technical problems of easy appearance of local edge waves during current pickling rolling production of tinned sheet steel, high incidence of surface iron oxide scale during continuous annealing production, high yield ratio of tin plates, undesirable stamping processing and the like. The hard tinned sheet steel and its raw sheet comprise the following chemical components (by weight): 0.05-0.07% of C, less than or equal to 0.1% of Si, 0.20-0.30% of Mn, less than or equal to 0.020% of P, less than or equal to 0.020% of S, 0.010-0.060% of Alt, less than or equal to 0.0060% of N, and the balance Fe and some inevitable impurity elements. The production method of the hard tinned sheet steel includes: steelmaking, continuous casting, hot rolling, combined pickling rolling, continuous annealing, double-stand tempering, and electrotinning. The hard tinned sheet steel produced in the invention has the advantages of small production control difficulty, excellent appearance quality, thin specification, stable hardness, and good stamping processing performance, etc., can meet the use requirements of high-speed canning, and can be widely used as a food cans, beverage cans, aerosol cans and other packaging materials.