Ferritic stainless steel having an excellent oxidation resistance
US5480608A · kind A · utility
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4Claims
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Key dates
| Filing date | Dec 13, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Dec 13, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/28
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ferritic stainless steel having excellent oxidation resistance, toughness and hot workability contains 0.001-0.20% of at least one of Ca, Mg and Ba as an amount of [Ca]+[Mg]+1/5[Ba], and La: 0.06-0.5% and Ce: 0.002-0.050% in addition to C, Si, Mn, Ni, Cr, Al, Ti and N as a main component provided that these components satisfy relations of the following equations (1)-(3): EQU [S].ltoreq.[Ca]+[Mg]+1/5[Ba] (1) EQU [La]/[Ce].gtoreq.5 (2) EQU Ti.gtoreq.48/12 [C]+48/14 [N] (3)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.