AUSTENITIC STAINLESS STEEL AND PRODUCTION METHOD THEREFOR

Title:

AUSTENITIC STAINLESS STEEL AND PRODUCTION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2019/138869

Kind Code:

A1

Abstract:

This austenitic stainless steel comprises a steel and an oxide coating on the surface of the steel, wherein the steel contains, in mass%, 0.100% or less of C, 3.00% or less of Si, 0.01-5.00% of Mn, 0.100% or less of P, 0.0050% or less of S, 7.00-40.00% of Ni, 17.00-28.00% of Cr, and 0.010-5.000% of V, the remaining portion being Fe and impurities, and the peak value of the V concentration in the depth direction from the outermost surface layer of the oxide coating is 5.00 atomic% or more when the total amount of cationic elements in the oxide coating is defined as 100%.

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Inventors:

YOSHIMI TOSHIHIKO (JP)
ISHIMARU EIICHIRO (JP)

Application Number:

PCT/JP2018/047737

Publication Date:

July 18, 2019

Filing Date:

December 26, 2018

Export Citation:

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Assignee:

NIPPON STEEL & SUMIKIN SST (JP)

International Classes:

C22C38/00; C22C38/58; C22C38/60; C25D11/34

Domestic Patent References:

WO2017164344A1

2017-09-28

Foreign References:

JP2012201950A	2012-10-22
JP2011047041A	2011-03-10
JP2012046800A	2012-03-08

Attorney, Agent or Firm:

TANAI Sumio et al. (JP)

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