FERRITIC STAINLESS STEEL SHEET EXCELLENT IN CORROSION RESISTANCE AT SHEARED SURFACE

Japanese Patent JP2010138470

A

To improve corrosion resistance at a sheared surface of a ferritic stainless steel sheet used in an atmospheric environment without carrying out any treatment for imparting corrosion resistance.

In the ferritic stainless steel sheet having a composition comprising ≤0.02% C, 0.05-0.8% Si, 0.05-1.0% Mn, ≤0.04% P, ≤0.1% Al, 20-24% Cr, 0.3-0.8% Cu, 0.05-6.0% Ni, ≤0.02% N and 0.001-0.1% S, the average crystal grain size in a ferritic phase is adjusted to 5-25 μm, and the density of MnS having particle size of 0.05-1 μm in the steel sheet is adjusted to 50-400 particles/cm2.

COPYRIGHT: (C)2010,JPO&INPIT

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ISHII TOMOHIRO
ISHIKAWA SHIN
UGI TAKUMI

JP2008318255A

June 24, 2010

December 15, 2008

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JFE STEEL CORP

C22C38/00; C21D9/46; C22C38/60

JP2008291303A	2008-12-04
JP2008260991A	2008-10-30

Kenji Sugimura
Kiyoshi Kuruma
Takanashi Reiko

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