STAINLESS STEEL FOR LATENT HEAT RECOVERY TYPE HEAT EXCHANGER

PROBLEM TO BE SOLVED: To provide a stainless steel that is suitable as materials for a fin, pipe and the like of a latent heat recovery type heat exchanger, has excellent brazability and corrosion resistance, and is inexpensive.SOLUTION: A ferritic stainless steel for a latent heat recovery type hea...

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Bibliographische Detailangaben
Hauptverfasser:	TAI ZENICHI, IMAGAWA KAZUNARI, SAIDA TOMOAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ALLOYS BLASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING METALLURGY RANGES TREATMENT OF ALLOYS OR NON-FERROUS METALS VENTILATING WEAPONS
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a stainless steel that is suitable as materials for a fin, pipe and the like of a latent heat recovery type heat exchanger, has excellent brazability and corrosion resistance, and is inexpensive.SOLUTION: A ferritic stainless steel for a latent heat recovery type heat exchanger fin contains, in mass%, C: 0.03% or less, Si: more than 0.1-1%, Mn: 2% or less, P: 0.05% or less, S: 0.03% or less, Cr: 12-20%, Nb: 7×(C+N)+0.15-0.80%, N: 0.03% or less, Ti: 0.02% or less and Al: 0.02% or less, satisfying Ti+Al≤0.02%, with the balance being Fe and inevitable impurities.SELECTED DRAWING: Figure 2 【課題】潜熱回収型熱交換器のフィン、パイプ等の素材として好適であって、ろう付け性および耐食性に優れていて、安価なステンレス鋼を提供する。【解決手段】質量％で、Ｃ：０．０３％以下、Ｓｉ：０．１超〜１％、Ｍｎ：２％以下、Ｐ：０．０５％以下、Ｓ：０．０３％以下、Ｃｒ：１２〜２０％、Ｎｂ：７×（Ｃ＋Ｎ）＋０．１５〜０．８０％、Ｎ：０．０３％以下、Ｔｉ：０．０２％以下およびＡｌ：０．０２％以下を含み、Ｔｉ＋Ａｌ≦０．０２％を満たす、残部がＦｅおよび不可避的不純物からなる、潜熱回収型熱交換器フィン用のフェライト系ステンレス鋼。【選択図】図２