Japan, March 5 -- NIPPON STEEL STAINLESS STEEL CORP has got intellectual property rights for 'LOW-TEMPERATURE AUSTENITIC STAINLESS HOT-ROLLED STEEL MATERIAL AND MANUFACTURING METHOD THEREOF.' Other related details are as follows:
Application Number: JP,2022-055926
Category (FI): C22C38/00,302@B,C21D8/0221,C21D8/02@D,C22C38/58,C21D8/021
Stage: PROBLEM TO BE SOLVED: To provide a steel material that is excellent in low temperature toughness capable of applying to a low temperature vessel use and high in economic efficiency, while enjoying high intensity due to TMCP technology and alloy elements.SOLUTION: A low-temperature austenitic stainless hot-rolled steel material of the present invention is characterized by having a chemical composition comprising, in mass percentage, C: 0.070% or less, Si: 1.50% or less, Mn: 0.10 to 3.00%, and P: 0.045. % or less, S: 0.0001 to 0.0300%, Cr: 16.0 to 22.0%, Ni: 6.5 to 13.0%, N: 0.060 to 0.250%, Al: 0.100% or less, O: 0.0090% or less, the balance being Fe and inevitable impurities, where an amount of N [N] in the extraction residue is 0.014% or less, and a half-size impact absorption energy is 54 J or more at -100degC.SELECTED DRAWING: Figure 1 (Grant)
Filing Date: March 30, 2022
Publication Date: Oct. 13, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
