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Report No.

Super ODS steel R&D towards highly efficient nuclear systems, 6; Piping and summary

Kaito, Takeji ; Inoue, Masaki ; Ukai, Shigeharu*; Kimura, Akihiko*; Okuda, Takanari*; Abe, Fujio*; Onuki, Somei*; Fujisawa, Toshiharu*

The Four path tube manufacturing of the corrosion resistant super ODS ferritic steel was carried out using pilger mill cold working and intermediate softening heat treatment. High-temperature final heat treatment successfully produced isotropical recrystallized microstructure. It was confirmed that target precise dimension of 8.5mm in outer diameter $$times$$ 0.5mm in wall thickness can be achieved by the tube manufucturing process developed by JAEA. Based on the reviewing of R&D results on super ODS steel, the prospect of super ODS steel development was discussed.



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