| 摘要 |
PURPOSE: A use of stainless steels which have a composition specific for the production of good coking resistance, but which retain an austenitic structure despite a reduced nickel content is provided. CONSTITUTION: The use of a steel in the manufacture of or coating of equipment or an element of equipment is characterized in that, in order to provide the equipment or element of equipment with improved coking resistance properties, the steel is an austenitic steel with a composition comprising at most 0.15% of C; 2% to 10% of Mn; at most 2% of Ni; at most 4% of Cu; 0.1% to 0.4% of N; 10% to 20% of Cr; at most 1% of Si; at most 3% of Mo; and at most 0.7% of Ti, wherein the steel comprises at most 0.1% of C; 5% to 10% of Mn; and 15% to 18% of Cr, the steel comprises about 0.05% of C; about 7.5% of Mn; about 1.5% of Ni; about 2.5% of Cu; about 0.15% of N; about 18% of Cr; and about 0.5% of Si, wherein the steel comprises about 0.04% of C; about 10% of Mn; about 1.5% of Ni; about 4% of Cu; about 0.1% of N; about 17% of Cr; about 0.5% of Si; and about 0.7% of Ti, and wherein the steel comprises about 0.05% of C; about 8.5% of Mn; about 1.5% of Ni; about 3% of Cu; about 0.2% of N; about 17% of Cr; about 0.5% of Si; and about 2.1% of Mo.
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