The purpose of the present invention is to provide a glass for chemical strengthening that exhibits a high strength after chemical strengthening and is resistant to devitrification. The present invention relates to a glass for chemical strengthening that contains, expressed as mol % on an oxide basis, 55 to 70% SiO2, 10 to 25% Al2O3, 1 to 20% Li2O, 0 to 8% CaO, 0 to 8% SrO, and 0 to 5% ZrO2, in which the sum of the contents of CaO and SrO is 1.5 to 10%, the sum of the contents of Na2O and K2O is 3 to 11%, and the value X given by the formula ([Li2O]+[K2O])/[Al2O3] is 0.1 to 1.1.