US Patent Issued to JFE Steel on Dec. 16 for "Stainless steel seamless pipe and method for manufacturing stainless steel seamless pipe" (Japanese Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,670, issued on Dec. 16, was assigned to JFE Steel Corp. (Tokyo).

"Stainless steel seamless pipe and method for manufacturing stainless steel seamless pipe" was invented by Yuichi Kamo (Tokyo) and Masao Yuga (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein is a stainless steel seamless pipe having a composition that contains, in mass %, C: 0.06% or less, Si: 1.0% or less, Mn: 0.01% or more and 1.0% or less, P: 0.05% or less, S: 0.005% or less, Cr: 15.2% or more and 18.5% or less, Mo: 1.5% or more and 4.3% or less, Cu: 1.1% or more and 3.5% or less, Ni: 3.0% or more and 6.5% or less, Al: 0.10% or less, N: 0.10% or less, O: 0.010% ...