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
GB30309/36A
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.)
Fagersta Bruks AB
Original Assignee
Fagersta Bruks AB
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 Fagersta Bruks ABfiledCriticalFagersta Bruks AB
Publication of GB490439ApublicationCriticalpatent/GB490439A/en
Hardened articles such as tools are made from steels having a nitrogen content of over ,007 per cent and containing also a nitrogen binding agent or agents. The amount of the binding agent is sufficient to deoxidize the material and to bind the nitrogen, for which purpose not less than ,001 per cent of the binding agent is present. Aluminium, titanium or vanadium may be used as binding agents, the quantity employed being preferably less than 0,25 per cent.
GB30309/36A1935-12-071936-11-06Improvements in or relating to the manufacture of hardened articles
ExpiredGB490439A
(en)