Japan, Sept. 18 -- NIPPON STEEL STAINLESS STEEL CORP has got intellectual property rights for 'AUSTENITIC STAINLESS STEEL AND METHOD FOR PRODUCING THE SAME, AND PROCESSED PRODUCT.' Other related details are as follows:
Application Number: JP,2021-088671
Category (FI): C21D6/00,102@A,C22C38/58,C22C38/00,302@Z,C21D9/46@Q
Stage: PROBLEM TO BE SOLVED: To provide an inexpensive austenitic stainless steel that has excellent corrosion resistance and can hold non-magnetic properties even when processed.SOLUTION: An austenitic stainless steel contains, by mass, C: 0.010-0.200%, Si: 2.00% or less, Mn: 3.00% or less, P: 0.035% or less, S: 0.0300% or less, Ni: 6.00-14.00%, Cr: 20.0-26.0%, Mo: 3.00% or less, Cu: 0.01-3.00%, Al: 0.200% or less, N: 0.100-0.250%, O: 0.0080% or less with the balance being Fe and impurities. The austenitic stainless steel has Md30 of -95degC or lower, which is represented by the following formula (1), and also has a relative permeability of 1.010 or less before and after the processing. Md30=551-462(C+N)-9.2Si-8.1Mn-13.7Cr-29(Ni+Cu)-18.5Mo (1), where each element symbol denotes the content of each element.SELECTED DRAWING: None (Grant)
Filing Date: May 26, 2021
Publication Date: Dec. 8, 2022
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
