EP 0864659 B1 20020515 - Steel blade for agriculture and forestry and a process for making this blade
Title (en)
Steel blade for agriculture and forestry and a process for making this blade
Title (de)
Klinge für land- und forstwirtschaftliche Zwecke aus Stahl, sowie Verfahren zu ihrer Herstellung
Title (fr)
Lame en acier pour le secteur agricole et forestier et un procédé de fabrication de cette lame
Publication
Application
Priority
AT 42997 A 19970312
Abstract (en)
[origin: EP0864659A1] A cutter, for agricultural and forestry use, consists of a quench hardened steel which is microalloyed with boron and which has a carbon content of 0.35-0.50 %. Preferably, the steel contains 0.3-0.5 % Cr and 0.0015-0.008 % B and has a hardness of ≥ 48 HRC. Also claimed is production of the above cutter by subjecting a cutter of boron microalloyed steel of 0.35-0.50 % C content to quench hardening to ≥ 48 HRC hardness and surface hardening, preferably by carbonitriding, to 65-70 HRC surface hardness.
IPC 1-7
IPC 8 full level
C21D 9/18 (2006.01); C22C 38/32 (2006.01)
CPC (source: EP)
C21D 9/18 (2013.01); C22C 38/32 (2013.01)
Designated contracting state (EPC)
BE CH DE FR LI
DOCDB simple family (publication)
EP 0864659 A1 19980916; EP 0864659 B1 20020515; AT 404363 B 19981125; AT A42997 A 19980315; DE 59804112 D1 20020620
DOCDB simple family (application)
EP 98102174 A 19980209; AT 42997 A 19970312; DE 59804112 T 19980209