X70 steel coils of acicular ferrite microstructure for large diameter pipes were researched and developed at Baosteel. The products have been used in West East Gas Pipeline Project. Compared to the X70 of ferrite and pearlite microstructure, the newly developed X70 has high strength, high toughness, low transition temperature and high dynamic tear-resistance. The excellent properties of this steel are resulted from ultra-low carbon acicular ferrite with interaction of very fine precipitated particles and high-density dislocation.
Research and development of X70 coils for large diameter pipes of West-East Gas Pipeline Project
Forschung und Entwicklung von Coils aus X70 für Großrohre des West-Ost-Gasfernleitungsprojektes
Titel chinesisch
Journal of Iron and Steel Research (Chinese Edition) ; 18 , 3 ; 46-50
2006
5 Seiten, 8 Bilder, 4 Tabellen, 4 Quellen
Aufsatz (Zeitschrift)
Unbekannt
Start of production of large diameter pipes for North-European gas pipeline
Tema Archiv | 2007
|Development of automatic ultrasonic inspection system for large diameter pipeline
Tema Archiv | 1996
|