FERRITE STAINLESS STEEL WITH LOW BLACK SPOT GENERATION

This ferrite stainless steel includes: by mass%, C: 0.020% or less; N: 0.025% or less; Si: 1.0% or less; Mn: 0.5% or less; P: 0.035% or less; S: 0.01% or less; Cr: 16% to 25%; Al: 0.15% or less; Ti: 0.05% to 0.5%; and Ca: 0.0015% or less, with the balance being Fe and inevitable impurities, wherein...

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Bibliographic Details
Main Authors MATSUHASHI, Tooru, NAKATA, Michio
Format Patent
LanguageEnglish
French
German
Published 26.06.2019
Subjects
ALLOYS
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS
MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS
METALLURGY
METALLURGY OF IRON
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:This ferrite stainless steel includes: by mass%, C: 0.020% or less; N: 0.025% or less; Si: 1.0% or less; Mn: 0.5% or less; P: 0.035% or less; S: 0.01% or less; Cr: 16% to 25%; Al: 0.15% or less; Ti: 0.05% to 0.5%; and Ca: 0.0015% or less, with the balance being Fe and inevitable impurities, wherein the following formula (1) is fulfilled, BI = 3 ¢ AI + Ti + 0.5 ¢ Si + 200 ¢ Ca ‰¤ 0.8 (wherein Al, Ti, Si, and Ca in the formula (1) represent contents (mass%) of the respective components in the steel).
Bibliography:Application Number: EP20100738382