Patent ID: 9274298
Filing Date: 2016-03-01
CPC Classification: B21B,B21C,C21D,C22C,G02B

Claim Text:
1. A deformed steel wire comprising, as a chemical component, by mass %: C: 0.30% to 1.10%; Si: 0.10% to 1.50%; Mn: 0.20% to 1.50%; P: limited to 0.020% or less; S: limited to 0.020% or less; and the balance consisting of Fe and impurities, wherein a metallographic structure includes a ferrite-pearlite structure or a pearlite structure, wherein a cross section perpendicular to a longitudinal direction has a hollow-fan shape, in a thickness center area, an inner surface area, and an outer surface area on the cross section, integration degrees of a crystal orientation <110> in the longitudinal direction are respectively in a range of 2.0 to 4.0, an absolute value of a difference in the integration degree of the crystal orientation <110> in the longitudinal direction between the inner surface area and the outer surface area on the cross section is 0.3 or less, in the thickness center area on the cross section, an integration degree of a crystal orientation <100> in a thickness direction is in a range of 1.2 to 3.8, and when inner angles at two facing edges of an inner surface on the cross section are represented by R