Global Patent Index - EP 1003920 A1

EP 1003920 A1 20000531 - 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 A1 20000531 (DE)

Application

EP 98943853 A 19980806

Priority

  • DE 19735285 A 19970814
  • EP 9804894 W 19980806

Abstract (en)

[origin: US6315844B1] The invention relates to a high-strength steel track element, and process of making the steel track element by rolling and heat treating. The steel comprises: 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 iron and smelting-related impurities. The steel has a bainitic basic structure, a tensile strength of at least 1600 N/mm2 and a technical yield strength of at least 1250 N/mm2.

IPC 1-7

C21D 9/04; C21D 1/20; C22C 38/22

IPC 8 full level

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

CPC (source: EP US)

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

Citation (search report)

See references of WO 9909222A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

US 6315844 B1 20011113; AT E210197 T1 20011215; AU 736649 B2 20010802; AU 9159598 A 19990308; DE 19735285 A1 19990218; DE 19735285 C2 20010823; DE 59802362 D1 20020117; DK 1003920 T3 20020402; EP 1003920 A1 20000531; EP 1003920 B1 20011205; ES 2169547 T3 20020701; NO 20000707 D0 20000211; NO 20000707 L 20000211; PL 189758 B1 20050930; PL 338544 A1 20001106; PT 1003920 E 20020531; WO 9909222 A1 19990225

DOCDB simple family (application)

US 46396800 A 20000419; AT 98943853 T 19980806; AU 9159598 A 19980806; DE 19735285 A 19970814; DE 59802362 T 19980806; DK 98943853 T 19980806; EP 9804894 W 19980806; EP 98943853 A 19980806; ES 98943853 T 19980806; NO 20000707 A 20000211; PL 33854498 A 19980806; PT 98943853 T 19980806