STEEL WIRE MATERIAL FOR WIRE DRAWING

To provide a steel wire material for wire drawing capable of suppressing crack occurrence and disconnection during wire twisting, and more stably producing a steel wire having preferably high strength as a material for a wire rope and the like.SOLUTION: A steel wire material contains, by mass%, C:0....

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MATSUI NAOKI, OFUJI YOSHIHIRO
Format: Patent
Sprache:eng ; jpn
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:To provide a steel wire material for wire drawing capable of suppressing crack occurrence and disconnection during wire twisting, and more stably producing a steel wire having preferably high strength as a material for a wire rope and the like.SOLUTION: A steel wire material contains, by mass%, C:0.80-1.10%, Si:0.35-2.00%, Mn:0.30-1.20%, Al:0.005-0.050%, P:0.030% or less, S:0.015% or less, N:0.0100% or less, O:0.0020%, and the balance having Fe and impurities, having a metallographic structure, where in a cross section perpendicular to the longitudinal direction of the steel wire material, an area ratio of pearlite is 95% or more and an area ratio of pro-eutectoid cementite is 0.50% or less, and when the average value of the Vickers hardnesses in an inside area is A, the average value of the Vickers hardnesses near the surface is B, and the standard deviation is σ, then the following formulas: 360≤A≤480, 30