Title:
Fe-Cr-Ni-BASED ALLOY HAVING EXCELLENT SURFACE PROPERTIES, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2024/085002
Kind Code:
A1
Abstract:
An Fe-Cr-Ni-based alloy comprising 0.020-0.150% of C, 0.05-0.80% of Si, 0.10-1.50% of Mn, 0.035% or less of P, 0.0050% or less of S, 34.0-48.0% of Ni, 22.0-29.0% of Cr, 0.20-1.20% of Mo, 0.005-0.180% of Al, 0.0001-0.0100% of Mg, 0.0001-0.0100% of Ca, 0.20-0.80% of Nb, 0.050-0.500% of N, 0.0001-0.0060% of O, 0.80% or less of Cu, 0.100% or less of Ti, and 0.50% or less of Co, the remaining portion being Fe and unavoidable impurities, wherein the alloy includes one or more nonmetal inclusions among MgO, CaO, CaO-MgO-based oxides, CaO-Al2O3-MgO-based oxides, and MgO·Al2O3, and the count proportion of MgO·Al2O3 with respect to all oxide-based nonmetal inclusions is 50% or less.
Inventors:
OGASAWARA DAIKI (JP)
MIZUNO KENJI (JP)
MIZUNO KENJI (JP)
Application Number:
PCT/JP2023/036560
Publication Date:
April 25, 2024
Filing Date:
October 06, 2023
Export Citation:
Assignee:
NIPPON YAKIN KOGYO CO LTD (JP)
International Classes:
C22C30/02; B21B1/22; B22D11/00; C21B11/10; C21C1/02; C21C7/00; C21C7/04; C21C7/06; C21C7/064; C21C7/068; C21C7/072
Attorney, Agent or Firm:
SUENARI, Mikio (JP)
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