Global Patent Index - EP 1003920 B1

EP 1003920 B1 2001-12-05 - METHOD FOR PRODUCING A HIGH-STRENGTH TRACK ELEMENT AND TRACK ELEMENT THUS OBTAINED

Title (en)

METHOD FOR PRODUCING A HIGH-STRENGTH TRACK ELEMENT AND TRACK ELEMENT THUS OBTAINED

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES HOCHFESTEN GLEISTEILS SOWIE GLEISTEIL

Title (fr)

PROCEDE DE FABRICATION D'UN ELEMENT DE VOIE A RESISTANCE ELEVEE, ET ELEMENT DE VOIE AINSI OBTENU

Publication

EP 1003920 B1 (DE)

Application

EP 98943853 A

Priority

  • DE 19735285 A
  • EP 9804894 W

Abstract (en)

[origin: DE19735285A1] A high strength rail part is made of a steel with a bainitic structure, which has the composition 0.3-0.6% C, 0.8-1.5% Si, 0.7-1.0% Mn, 0.9-1.4% Cr, 0.6-1.0% Mo, balance Fe and impurities. The steel has strength \-1400 N/mm<2> and elastic limit \-1100 N/mm<2>. An Independent claim is also included for production of a steel rail part by heating to 750-920 deg C, cooling to 250-450 deg C, reheating at 400-560 deg C for 60-150 mins. and cooling to room temperature.

IPC 1-7 (main, further and additional classification)

C21D 9/04; C21D 1/20; C22C 38/22

IPC 8 full level (invention and additional information)

C21D 1/20 (2006.01); C21D 9/04 (2006.01); C22C 38/22 (2006.01); E01B 7/00 (2006.01)

CPC (invention and additional information)

E01B 7/00 (2013.01); C21D 1/20 (2013.01); C21D 9/04 (2013.01); C22C 38/22 (2013.01); C21D 2211/002 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IT LI LU NL PT SE

DOCDB simple family

DE 19735285 A1 19990218; DE 19735285 C2 20010823; AT 210197 T 20011215; AU 736649 B2 20010802; AU 9159598 A 19990308; DK 1003920 T3 20020402; EP 1003920 A1 20000531; EP 1003920 B1 20011205; ES 2169547 T3 20020701; NO 20000707 A 20000211; NO 20000707 D0 20000211; PL 189758 B1 20050930; PL 338544 A1 20001106; PT 1003920 E 20020531; US 6315844 B1 20011113; WO 9909222 A1 19990225