Plated steel

US11781200B2 · kind B2 · utility

Assignee

• NIPPON STEEL CORPORATION · JP

Inventors

• Kohei Tokuda · Tokyo, JP
• Takuya MITSUNOBU · Tokyo, JP
• Mamoru Saito · Tokyo, JP
• Yuto FUKUDA · Tokyo, JP
• Yasuto Goto · Kimitsu, JP
• Hidetoshi Shindo · Chiyoda, JP
• Fumiaki Nakamura · Sumida, JP
• Koji Kawanishi · Tamano, JP
• Ryohei Mimura · Tokyo, JP

Key dates

• Filing date: Jul 9, 2021
• Grant date: Oct 10, 2023
• Expiry date: Jul 9, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C30/00
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A plated steel including a plated layer on a surface of a steel, in which Expression 1 of 0≤Cr+Ti+Ni+Co+V+Nb+Cu+Mn≤0.25 and Expression 2 of 0≤Sr+Sb+Pb+B+Li+Zr+Mo+W+Ag+P≤0.50 are satisfied, and Expression 3 of I(MgZn2 (41.31°))/IΣ(MgZn2)≤0.265 and Expression 6 of 0.150≤{I(MgZn2 (20.79°))+I(MgZn2 (42.24°))}/IΣ(MgZn2) are further satisfied in an X-ray diffraction pattern of a surface of the plated layer measured using Cu-Kα rays under a condition that an X-ray output is 40 kV and 150 mA.