EP 0020792 B1 19841205 - HIGH-STRENGTH FREELY MACHINABLE STEEL CAPABLE OF SUSTAINING DYNAMIC FORCES
Title (en)
HIGH-STRENGTH FREELY MACHINABLE STEEL CAPABLE OF SUSTAINING DYNAMIC FORCES
Publication
Application
Priority
EP 79101820 A 19790608
Abstract (en)
[origin: EP0020792A1] 1. Thread-cutting steel capable of withstanding dynamic stresses and possessing high strength, even without quenching, as well as excellent suitability for machining by cutting operations, which steel is intended for the manufacture of machinity components subjected to high stresses, characterized in that in addition to iron it contains 0.20 to 0.70 % (by weight) of C, 1.20 to 3.00% (by weight) of Mn, at most 1.00 % (by weight) of Si, at most 0.04 % (by weight) of P, 0.05 to 0.11 % (by weight) of S, at least 0.10 % (by weight) of pb, 0.001 to 0.03 % (by weight) of Ca, 0.001 to 0.005 % (by weight) of B, 0.007 to 0.035 % (by weight) of N, 0.03 to 0.20 % (by weight) of Nb and/or of V, at most 0.25 % (by weight) of Zr and/or of Ce, at most 0.2 % (by weight) of Be and/or of Bi and at most 1.00 % (by weight) of Mo and/or of Ni.
IPC 1-7
IPC 8 full level
C22C 38/60 (2006.01)
CPC (source: EP)
C22C 38/60 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0020792 A1 19810107; EP 0020792 B1 19841205; AT E10652 T1 19841215; DE 2967319 D1 19850117
DOCDB simple family (application)
EP 79101820 A 19790608; AT 79101820 T 19790608; DE 2967319 T 19790608