EP 0045815 A1 19820217 - Semi-finished steel article and method for producing same.
Title (en)
Semi-finished steel article and method for producing same.
Title (de)
Vorgearbeiteter Stahlartikel und Verfahren zu seiner Herstellung.
Title (fr)
Produit semi-fini en acier et procédé pour sa fabrication.
Publication
Application
Priority
EP 80104708 A 19800811
Abstract (en)
A steel billet is produced having free machining properties and substantially devoid of surface cracking in the as-deformed condition and without surface conditioning. The steel contains bismuth and tellurium and may contain lead but in a smaller amount than is conventional in leaded, free machining steels. The billet was hot deformed at a temperature above about 920 DEG C (1700 DEG F) and below 1150 DEG C (2100 DEG F). The steel contains inclusions of MnTe and Bi2Te3 as well as elemental Bi.
IPC 1-7
IPC 8 full level
C21D 7/13 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP)
C21D 7/13 (2013.01); C22C 38/60 (2013.01)
Citation (search report)
- US 2378548 A 19450619 - GREGG JAMES L, et al
- DE 2107525 A1 19720824 - SCHWAEBISCHE HUETTENWERKE GMBH
- GB 1357387 A 19740619 - POMPEY ACIERIES
- [A] US 3152890 A 19641013 - HOLOWATY MICHAEL O
- [A] US 3590476 A 19710706 - LEVY BERNARD S, et al
- [A] US 3784374 A 19740108 - ALMAND E
- [A] DE 1222269 B 19660804 - INLAND STEEL CO
- [AD] US 3152889 A 19641013 - HOLOWATY MICHAEL O
- [AD] US 3287954 A 19661129 - SCHRADER CARLTON F, et al
- [AD] US 3365922 A 19680130 - CONCES ROBERT A, et al
- [AD] US 3382700 A 19680514 - HEITMANN WILLIAM E, et al
- [AD] US 3710608 A 19730116 - HENTZ R, et al
Designated contracting state (EPC)
BE CH DE FR GB IT NL
DOCDB simple family (publication)
EP 0045815 A1 19820217; EP 0045815 B1 19840711; DE 3068522 D1 19840816
DOCDB simple family (application)
EP 80104708 A 19800811; DE 3068522 T 19800811