The invention provides wire rod excellent in drawability and steel wire made from the wire rod as starting material with high productivity at good yield and low cost. A hard steel wire rod of a specified composition is hot rolled, the hot-rolled steel is coiled in a specified temperature range, and the coiled steel is subjected to patenting at a predetermined cooling rate, thereby affording a high-carbon steel wire excellent in workability. It is high-strength steel wire excellent in drawability comprising a pearlite structure of an area ratio of 97% or greater and the balance of non-pearlite structures including bainite, degenerate-pearlite and pro-eutectoid ferrite and having a pearlite block size of not less than 20 µm and not greater than 45 µm. The invention also provides a high-carbon steel wire excellent in ductility, which is manufactured by subjecting the wire rod to intermediate patenting and cold drawing and has a tensile strength of 2800 MPa or greater.
HIGH-STRENGTH WIRE ROD EXCELLING IN WIRE DRAWABILITY AND PROCESS FOR PRODUCING THE SAME
WALZDRAHT MIT HERVORRAGENDER TIEFZIEHFÄHIGKEIT UND HOHER FESTIGKEIT SOWIE HERSTELLUNGSVERFAHREN
FIL MACHINE À RÉSISTANCE ÉLEVÉE PRÉSENTANT UNE EXCELLENTE APTITUDE AU TRÉFILAGE ET PROCÉDÉ DE FABRICATION DE CELUI-CI
2019-02-13
Patent
Elektronische Ressource
Englisch
Service strategy of Shinkansen excelling airlines
British Library Conference Proceedings | 1994
|Europäisches Patentamt | 2016
|Europäisches Patentamt | 2018
|Copper Bearing High Strength Cold Rolled Steel Sheets with Superior Drawability
SAE Technical Papers | 1982
|