Ferritic stainless steel having an excellent oxidation resistance
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United States of America Patent
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Jan 2, 1996
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N/A
app pub date -
Dec 13, 1994
filing date -
Mar 19, 1993
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Expired
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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): [S].ltoreq.[Ca]+[Mg]+1/5[Ba] (1) [La]/[Ce].gtoreq.5 (2) Ti.gtoreq.48/12 [C]+48/14 [N] (3)
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