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.)
Expired
Application number
GB4251/37A
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.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke AG
Mannesmann AG
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 Mannesmannroehren Werke AG, Mannesmann AGfiledCriticalMannesmannroehren Werke AG
Publication of GB487262ApublicationCriticalpatent/GB487262A/en
Steel containing 0,2-0,7 per cent of carbon and 0.7-7 per cent of chromium, particularly 0,4 per cent of carbon and either 1,3 or 2,5 per cent of chromium, and suitable for making articles required to resist the action of hydrogen at high temperatures and pressures, are heat treated by chilling from 840-850 DEG C., reheating to 600-685 DEG C., and cooling slowly.
GB4251/37A1936-02-121937-02-12Improvements in or relating to chrome steel
ExpiredGB487262A
(en)