| 简介 |
PROBLEM TO BE SOLVED : To provide ferritic stainless steels enabling a reduction in cathode degradation rates.
SOLUTION : Disclosed is a composition comprising iron; about 18 to about 30 wt.% chromium; up to about 7 wt.% tungsten; up to about 1.5 wt.% manganese; up to about 1 wt.% aluminum; about 0.02 to about 0.1 wt.% of a rare earth metal and/or yttrium, where the weight percents are based on the total weight of the composition. Also, disclosed is a method comprising : melting a composition comprising iron, about 18 to about 30 wt.% chromium, up to about 7 wt.% tungsten, up to about 1.5 wt.% manganese, up to about 1 wt.% aluminum, about 0.02 to about 0.1 wt.% of a rare earth metal and/or yttrium, where the weight percents are based on the total weight of the composition; casting the composition; and rolling the composition.
COPYRIGHT : (C)2007, JPO&INPIT |
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