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.)
SUMITOMO KAINAN KOKAN KK
Nippon Steel Corp
Original Assignee
SUMITOMO KAINAN KOKAN KK
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 KAINAN KOKAN KK, Sumitomo Metal Industries LtdfiledCriticalSUMITOMO KAINAN KOKAN KK
Priority to JP2990277ApriorityCriticalpatent/JPS53114766A/en
Publication of JPS53114766ApublicationCriticalpatent/JPS53114766A/en
Publication of JPS5647932B2publicationCriticalpatent/JPS5647932B2/ja
PURPOSE: To economically manufacture the steel pipe with superior toughness depending on merely the hot work, in manufacturing the seamless steel pipe, by omitting the heat treatment such as hardening, tempering, etc., or by applying a simple low temperature aging treatment.
COPYRIGHT: (C)1978,JPO&Japio
JP2990277A1977-03-171977-03-17Manufacture of toush steel pipe
GrantedJPS53114766A
(en)