Patent ID: 8216394
Filing Date: 2012-07-10
Classification: B21B,C21D,C22C

Abstract:
1. A steel wire capable of mechanical descaling, comprising C: 0.05-1.2 mass %, Si: 0.01-0.50 mass %, Mn: 0.1-1.5 mass %, P: no more than 0.02 mass %, S: no more than 0.02 mass %, and N: no more than 0.005 mass %, wherein the steel wire has a scale having a Fe 2 SiO 4 (fayalite) layer, a FeO layer, a Fe 3 O 4 layer, and a Fe 2 O 3 layer which are formed in the order stated from a ferrous side of the steel wire, and a residual stress in the scale is no more than 200 MPa, wherein a percentage length of fayalite formed on the surface of the steel wire with a length of 10 μm is 60% or higher, wherein the Fe