ろう付け性に優れたステンレス鋼 - Nippon Steel & Sumikin Stainless Steel Co., Ltd.

Title:

ろう付け性に優れたステンレス鋼

Document Type and Number:

Japanese Patent JP6379283

Kind Code:

B2

Abstract:

A stainless steel exhibiting an excellent brazeability includes in mass%: C: from 0.001% to 0.1%; Si: from more than 1.5% to 4.0%; Mn: from 0.05% to 4.0%; Cr: from 10.5% to 30%; Ni: 35% or less; N: from 0.001% to 0.4%; one or both of Ti: 0.002% to 0.030% and Al: 0.002% to 0.10%; and a balance being Fe and inevitable impurities, in which an Si content, a Ti content and an Al content satisfy Formula 1, and an oxide film with a composition satisfying Formula 2 is formed on a surface of the stainless steel, Si m / Ti m + Al m ¥ 40 1.2 × Si m / Fe m ¤ Si f / Fe f ¤ 5 × Si m / Fe m in Formula 1 and Formula 2, a suffix "f' expresses the oxide film in a unit of atom%, and a suffix "m" expresses a base material in a unit of mass%.

Inventors:

Nobuhiko Hiraide
Atsushi Hayashi

Application Number:

JP2017508357A

Publication Date:

August 22, 2018

Filing Date:

March 22, 2016

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