<寄書>セミキルド鋼の偏析 : セミキルド鋼とリムド鋼竝びにキルド鋼との比較
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概要
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Comparisons were made of the chemical compositions of ingots, containing less than 0.12% carbon, produced from rimmed and semi-killed steels after being rolled to billets and sheet bars. Steel slubs to be used as ship building material containing 0.17〜0.27% of carbon were made from rimmed, semi-killed and killed steels and their chemical compositions were studied. From the results obtained, we confirmed, though had already been confermed, the following facts : segregation was great in 1/3〜1/4 of the head of the rimmed steel ingots. In the killed steel, because the shrinkage pipe was cut off, the yield was lowered, but in the semi-killed steel, if we paid attention to deoxidation degree, the segregation was less, and in the sheet bar and the ship-building steel plate, the yield was raised.
- 東北大学の論文
- 1953-03-25