HIGH STRENGTH EXTRAFINE STEEL WIRE HAVING EXCELLENT DUCTILITY

摘要

PROBLEM TO BE SOLVED: To provide a high strength steel wire having extremely excellent tensile strength and ductility.

SOLUTION: In the high strength steel wire having excellent ductility, the average width of planar ferrite is ≤15 nm, and also, the average C concentration in the central part of the ferrite is ≤0.2 mass%.

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