MUMBAI, India, March 14 -- Intellectual Property India has published a patent application (202617016441 A) filed by Baoshan Iron & Steel Co. Ltd., Shanghai, on Feb. 13, for '890 mpa-grade cylinder pipe and manufacturing method therefor.'
Inventor(s) include Sun, Wen; Gao, Zhan; Zhang, Zhonghua; Luo, Suzhen; and Liu, Qilin.
The application for the patent was published on March 13, under issue no. 11/2026.
According to the abstract released by the Intellectual Property India: "A cylinder pipe, comprising Fe and inevitable impurities, and further comprising the following chemical elements in percentage by mass: C: 0.14-0.20%; Si: 0.15-0.55%; Mn: 0.5-1.5%; Cr: 0.5-1.5%; Mo: 0.25-0.65%; W: 0.3-0.8%; V: 0.05-0.1%; Nb: 0.02-0.06%; Al: 0.01-0.05%; and Ca: 0.0005-0.005%. The present invention further provides a manufacturing method for a cylinder pipe. By means of a reasonable chemical element component design, preferably further in combination with a specific process, the cylinder pipe has high strength, has low residual stress and low yield strength ratio, and also has good welding performance."
The patent application was internationally filed on Aug. 28, 2024, under International application No.PCT/CN2024/115011.
Disclaimer: Curated by HT Syndication.
