Ferritic stainless steel

US6426039B2 · kind B2 · utility

Assignee

• Kawasaki Steel Corporation · JP

Inventors

• Junichiro Hirasawa · Chiba, JP
• Atsushi Miyazaki · Hitachinaka, JP
• Mineo Muraki · Okayama, JP
• Susumu Satoh · Chiba, JP

Key dates

• Filing date: Jun 27, 2001
• Grant date: Jul 30, 2002
• Expiry date: Jun 27, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22C38/54
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Ferritic stainless steel comprising all three of Co, V, and B, having a Co content of about 0.01 mass % to about 0.3 mass %, a V content of about 0.01 mass % to about 0.3 mass %, and a B content of about 0.0002 mass % to about 0.0050 mass %, and having superior secondary working embrittleness resistance and superior high temperature fatigue characteristics.