US Patent Issued to POSCO on Nov. 11 for "Wire rod and steel wire for springs having excellent corrosion fatigue resistance properties, and method for producing same" (South Korean Inventor)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,113, issued on Nov. 11, was assigned to POSCO Co. LTD (Pohang-si, South Korea).

"Wire rod and steel wire for springs having excellent corrosion fatigue resistance properties, and method for producing same" was invented by Kwan-Ho Kim (Pohang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A wire rod and a steel wire which are for springs and have excellent corrosion fatigue resistance properties, and a method for producing same. The wire rod and steel wire containing, in wt %, 0.40-0.70% of C, 1.20-2.30% of Si, 0.20-0.80% of Mn, 0.20-0.80% of Cr, 0.015% or less of P, 0.015% or less of S, and 0.010% or less of N, with the remainder inc...