DUPLEX STAINLESS STEEL FOR THICK ELECTROMAGNETIC COOKER

PROBLEM TO BE SOLVED: To provide a duplex stainless steel which is suitably applied to a large-sized and thick electromagnetic cooker.SOLUTION: There is provided a duplex stainless steel for thick electromagnetic cooker consisting of two phases of 30 to 70% of a ferrite phase and 70 to 30% of an aus...

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Bibliographische Detailangaben
Hauptverfasser:	OMURA KEIICHI, ISHIMARU EIICHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS METALLURGY TREATMENT OF ALLOYS OR NON-FERROUS METALS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a duplex stainless steel which is suitably applied to a large-sized and thick electromagnetic cooker.SOLUTION: There is provided a duplex stainless steel for thick electromagnetic cooker consisting of two phases of 30 to 70% of a ferrite phase and 70 to 30% of an austenite phase, containing, by mass%, C:0.050% or less, Si:1.0% or less, Mn:6.0% or less, P:0.040% or less, S:0.030% or less, Ni:0.50 to 8.0%, Cr:19.0 to 27.0%, Mo:4.0% or less, Cu:3.0 or less, N:0.050 to 0.35% and the balance Fe with inevitable impurities, having sheet thickness of 5 mm or more and generating no crack at a flexure processed part when flexure process of over 90° is conducted.SELECTED DRAWING: None 【課題】大型且つ厚手の電磁調理器に好適に適用できる二相ステンレス鋼を提供することを課題とする。【解決手段】フェライト及びオーステナイトの二相よりなり、フェライト相が３０〜７０％、オーステナイト相が７０〜３０％で構成され、質量％で、Ｃ：０．０５０％以下、Ｓｉ：１．０％以下、Ｍｎ：６．０％以下、Ｐ：０．０４０％以下、Ｓ：０．０３０％以下、Ｎｉ：０．５０〜８．０％、Ｃｒ：１９．０〜２７．０％、Ｍｏ：４．０％以下、Ｃｕ：３．０以下、Ｎ：０．０５０〜０．３５％含有し、残部がＦｅおよび不可避的不純物からなり、板厚が５ｍｍ以上であって、９０°超曲げ加工した時に、曲げ加工部分に割れを生じないことを特徴とする厚手電磁調理器用二相ステンレス鋼。【選択図】なし