EP 0225425 B1 19910821 - LOW ALLOY STEEL HAVING GOOD STRESS CORROSION CRACKING RESISTANCE
Title (en)
LOW ALLOY STEEL HAVING GOOD STRESS CORROSION CRACKING RESISTANCE
Publication
Application
Priority
JP 24970785 A 19851106
Abstract (en)
[origin: EP0225425A2] The present invention relates to low alloy steel and specifically to nickel-chrome-molybdenum steel. A low alloy steel having excellent stress corrosion cracking resistance containing C : @</=@ 0.40 %, Si : @</= @ 0.15 %, Mn : @</=@ 0.20 %, P : @</=@ 0.010 %, S : @</=@ 0.030% Ni : 0.50 to 4.00 %, Cr : 0.50 to 2.50 %, Mo : 0.25 to 4.00 % and V : @</=@ 0.30 %, said Si, Mn and P being fulfilled with relationship of Si + Mn + 20P @</=@ 0.30 %, the remainder comprising Fe and unavoidable impurities, the prior austenite crystal grain size being in excess of 4 of ASTM crystal grain size number.
IPC 1-7
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01)
CPC (source: EP)
C22C 38/44 (2013.01); C22C 38/46 (2013.01)
Designated contracting state (EPC)
CH DE LI
DOCDB simple family (publication)
EP 0225425 A2 19870616; EP 0225425 A3 19881005; EP 0225425 B1 19910821; DE 3680995 D1 19910926; JP S62109949 A 19870521
DOCDB simple family (application)
EP 86108534 A 19860623; DE 3680995 T 19860623; JP 24970785 A 19851106