Title:
オーステナイト系ステンレス鋼
Document Type and Number:
Japanese Patent JP6958972
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an austenitic stainless steel having improved corrosion resistance, material strength, and working characteristics.SOLUTION: An austenitic stainless steel contains, in mass%, C: 0.03% or less, Si: 1.00% or less, Mn: 2.00% or less, P: 0.045% or less, S: 0.030% or less, Ni: 13.00-14.00%, Cr: 16.00-18.00%, Mo: 2.50-3.00%, with the balance being substantially iron and unavoidable impurities, wherein 60% or more of all the crystal grains have a crystal grain size of 3.0 μm or less, and an oxygen content in the stainless steel is 0.0030% or less in mass%.SELECTED DRAWING: Figure 3
Inventors:
Kumagai Masanobu
Ichiro Yoshino
Takashi Komatsu
Miyata Maya
Ichiro Yoshino
Takashi Komatsu
Miyata Maya
Application Number:
JP2017241254A
Publication Date:
November 02, 2021
Filing Date:
December 16, 2017
Export Citation:
Assignee:
Fujikoshi Co., Ltd.
Komatsu Seiki Co., Ltd.
Komatsu Seiki Co., Ltd.
International Classes:
C22C38/00; C22C38/58
Domestic Patent References:
| JP10265910A | ||||
| JP10204530A | ||||
| JP2001140045A | ||||
| JP1154848A | ||||
| JP5320756A |
Attorney, Agent or Firm:
Kosaku Umemoto
Akiko Okajima
Akiko Okajima