Al-Mg alloys have a prominent role for applications in the marine, transportation, and civil industry because of their moderate strength, corrosion resistance, and weldability. In this study, the microstructure, densification characteristics, and microhardness variation of Al-5 Mg (wt%) alloy have been studied in connection with the response to rolling of induction sintered alloy. Sintering at a moderate heating rate (4 C°/s) and 550°C for 3 min resulted in relatively low density (72 %) and hardness (50 HV) and also the segregation of Mg during cooling at grain-boundaries of α-Al, which is connected with an enhance in lattice parameter with a value of 0.4055 nm. In absence of segregation, after solutionizing at 550°C for 2 h and water quenching, the sample demonstrated higher density and microhardness with values of 92 % and an average microhardness of 100 HV, with a decrease in the lattice parameter with value of 0.4039 nm. The solutionized alloy responded to hot rolling with thickness reduction of 20 %. However, in the case of the solutionized-quenched sample followed by annealing at 550°C for 1 h, hot or cold rolling was not successful. This may be attributed to the formation of hot cracking during annealing along grain-boundaries in the presence of the residual porosity in the quenched sample. The cracking mode can be attributed to ductility dip cracking, which is typically observed at annealing temperatures, in which the alloy always suffers a rapid reduction in ductility. Solutionized-hot-rolled alloy resulted in improvement in density and microhardness with values of 94 % and 140 HV and a decrease in the lattice parameter with a value of 0.4036 nm.