Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries LtdfiledCriticalSumitomo Metal Industries Ltd
Priority to JP5735182ApriorityCriticalpatent/JPS58177443A/ja
Publication of JPS58177443ApublicationCriticalpatent/JPS58177443A/ja
Publication of JPS629665B2publicationCriticalpatent/JPS629665B2/ja
Method for heat-treating metal tubes or pipes for nuclear power plant, batch-type vacuum heat treatment furnace used therefor, and metal tubes or pipes for nuclear power plant heat-treated by the same