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In this video we look at the heat treatment of steels, in particular the most important annealing processes with which the properties of steels can be specifically influenced. This includes normalizing with the aim of achieving a homogeneous structure. Soft annealing to achieve good formability and machinability. Coarse grain annealing to achieve better machinability in low-carbon steels. Diffusion or solution annealing to homogenize the alloying elements or to dissolve precipitates. Recrystallization annealing to restore an undeformed structure. Stress relieving to reduce residual stresses. Hardening and tempering as heat treatment to increase strength or hardness is generally also counted as heat treatment processes, but not specifically as annealing processes. 00:00 Annealing processes 00:59 Normalizing 04:27 Soft annealing 08:41 Coarse grain annealing 10:30 Recrystallization annealing 14:27 Diffusion annealing 16:20 Solution annealing 18:02 Stress relieving annealing 20:09 Summary 21:28 Hardening and tempering