1. | The presence of large grains on the surfaces of parts made from plates produced at the Zaporozhstal' Factory and annealed at 800dg is due to the critical degree of rolling reduction. |
2. | The critical degree of rolling reduction leads to grain growth as the result of secondary recrystallization in the process of annealing at 800°.It is recommended that plates be subjected to recrystallization annealing at 600°. |
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