Global Patent Index - EP 0255597 B1

EP 0255597 B1 19911218 - LOW ALLOY STEELS

Title (en)

LOW ALLOY STEELS

Publication

EP 0255597 B1 19911218 (DE)

Application

EP 87109046 A 19870624

Priority

  • DE 3622735 A 19860705
  • DE 3719569 A 19870612

Abstract (en)

[origin: US4838963A] The invention relates to a micro-alloyed pearlitic steels contain 0.20 to 0.50% C, 0.40 to 1.0% Si, 0,80 to 1,80% Mn, 0.008 to 0.2% S, 0 to 0.7% Cr, 0 to 0.1% Al, 0 to 0.04% N, 0.01 to 0.05% Ti, remainder iron and impurities resulting from the melting process, with mixed sulphides (manganese, titanium carbonitrides, and the like) precipitated on the grain boundaries. The steel may preferably contain an additional content of up to 0.20% V and/or up to 0.10% Nb.

IPC 1-7

C22C 38/00; C22C 38/60

IPC 8 full level

C22C 38/00 (2006.01); C22C 38/14 (2006.01); C22C 38/60 (2006.01)

CPC (source: EP KR US)

C22C 38/14 (2013.01 - EP US); C22C 38/28 (2013.01 - KR)

Designated contracting state (EPC)

AT BE CH DE ES FR GB GR IT LI LU NL SE

DOCDB simple family (publication)

US 4838963 A 19890613; AT E70567 T1 19920115; DE 3719569 A1 19880121; DE 3719569 C2 19880623; DE 3775298 D1 19920130; EP 0255597 A2 19880210; EP 0255597 A3 19890111; EP 0255597 B1 19911218; ES 2027998 T3 19920701; FI 872933 A0 19870702; FI 872933 A 19880106; FI 88625 B 19930226; GR 3003399 T3 19930217; KR 880003023 A 19880513

DOCDB simple family (application)

US 7004787 A 19870706; AT 87109046 T 19870624; DE 3719569 A 19870612; DE 3775298 T 19870624; EP 87109046 A 19870624; ES 87109046 T 19870624; FI 872933 A 19870702; GR 910401970 T 19911219; KR 870007147 A 19870704