Improvements in the treatment of stainless steel tubes

Austenitic stainless steel tubes are treated to increase their high temperature ductility by working them by a planetary swaging process followed by annealing in the temperature range 800 DEG -900 DEG C., the working and annealing being repeated at least once. Treatment of tubes made from a vacuum m...

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Bibliographische Detailangaben
Hauptverfasser:	HABERLIN MICHAEL MELROSE, MCLEAN-ELRICK ALEXANDER, LLOYD HENRY
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
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Beschreibung
Zusammenfassung:	Austenitic stainless steel tubes are treated to increase their high temperature ductility by working them by a planetary swaging process followed by annealing in the temperature range 800 DEG -900 DEG C., the working and annealing being repeated at least once. Treatment of tubes made from a vacuum melted 20% chromium, 25% nickel, mobium stabilized steel is referred to.