1, in the temperature range from 1 150℃ to 1250℃, the hot work hardening rate of high aluminum ultra-low carbon steel is low, which is beneficial to improve the deformation ability and processability of the blank.
2. In the temperature range of 1 150℃ to 1250℃, the high-aluminum ultra-low carbon steel blank can easily reach the required processing deformation, which is beneficial to improve the forming quality and dimensional accuracy of the blank.
3. In the temperature range of 1 150℃ to 1250℃, the grain size and morphology of high aluminum ultra-low carbon steel are relatively uniform, which is beneficial to improve the mechanical properties and toughness of the slab.
4. In the temperature range of 1 150℃ to 1250℃, the surface oxidation degree of high aluminum ultra-low carbon steel is low, which is beneficial to reduce the oxidation and damage of billet surface.