Document Type and Number:
Japanese Patent JPWO2021182266
Kind Code:
A1
Abstract:
Realized is ferritic stainless steel which has excellent high-temperature strength and excellent red scale resistance. The ferritic stainless steel contains not more than 0.025% by mass of C, 0.05% by mass to 3.0% by mass of Si, 0.05% by mass to 2.0% by mass of Mn, not more than 0.04% by mass of P, not more than 0.003% by mass of S, not more than 0.5% by mass of Ni, 10.5% by mass to 25.0% by mass of Cr, not more than 0.025% by mass of N, 0.05% by mass to 1.0% by mass of Nb, not more than 3.0% by mass of Mo, not more than 1.8% by mass of Cu, not more than 0.2% by mass of Al, and not more than 0.5% by mass of Ti. The sum of the concentrations of Cr and Si, each of which is present as oxide or hydroxide, at a surface of the ferritic stainless steel and at depths to 6 nm from the surface is a given value or more.
Application Number:
JP2022505989A
Publication Date:
September 16, 2021
Filing Date:
March 04, 2021
Export Citation:
Domestic Patent References:
| JP2012112025A | 2012-06-14 | |||
| JPS58185780A | 1983-10-29 | |||
| JPH0254789A | 1990-02-23 | |||
| JP2019073783A | 2019-05-16 | |||
| JPH1150202A | 1999-02-23 | |||
| JP2002256472A | 2002-09-11 |
Foreign References:
| WO2018147087A1 | 2018-08-16 |
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