The purpose of the present invention is to provide: a steel plate for use in a can and exhibiting sufficient hardness and excellent can-torso buckling strength against external pressure; and a method for producing the same. The component composition for this steel plate for use in a can contains, in mass%, C in the amount of 0.0005-0.0030%, inclusive, Si in the amount of 0.05% or less, Mn in the amount of 0.50-1.00%, inclusive, P in the amount of 0.030% or less, S in the amount of 0.020% or less, Al in the amount of 0.01-0.04%, inclusive, N in the amount of 0.0010-0.0050%, inclusive, and B in the amount of 0.0005-0.0050%, inclusive, with the remainder constituting Fe and inevitable impurities. Furthermore, the hardness (HR30T) thereof is 56 or higher, and the average Young's modulus thereof is 215GPa or higher.